Surging idle



I have a 2008 Columbia that has just started surging during idling. and checking to see if the diaphragm inside it is punctured. General Rotary Tech Support Surging/bucking solved by adjusting the TPS. 25/09/2002 · What is a normal vacuum reading at idle for a typical Heads/cam/intake 5. ?? Problem is a surging idle, very uniform at 2 or three cycles per second. When it's not surging to 4000 rpm, the throttle is rediculously sensitive right off idle. 12/04/2006 · Horrible surging/ idle problems. The last few days it has been a pretty much constant thing. Improve Engine Performance. Not sure about the surging, but the idle "rumble" is due to the tune setup for it to idle at as low of an RPM as possible without shaking more or stalling. Re: LX178 Surging Idle I had the exact same problem that kept getting worse until it barely ran off of high idle. C and drop back down to 63 deg C. 0L powered Foxbody Mustang suffering from surging, rough or hanging idle? Then you may need to replace your old stock Idle Air Control Valve with a brand new genuine Ford IAC Valve from AmericanMuscle. 86 GT surging at idle However it has a surge at idle when cold and when it is up to temp. Recently replaced 02 sensor. Has no throttle hesitation or any drive ability issues at all. my 2005 cr250 was having a hard time at idle today. The RPM would fluctuate from about 800-1200 RPM and occasionally return to normal idle speed. Loping or surging at idleit seems like my truck has a big cam in it. Prior to this 97 I've solely been a chevy guy. I thought it was The engine started surging and won't idle. It is primarily and worst on cold start, but also to a lesser extent at operating temp start. Replaced the 3/2/2019 1/1/0001Idle is 500 rpm after warm up. If you discover carbon buildup, it must be removed using the proper procedure and a throttle body relearn or “idle learn reset/reset idle learn” procedure must be performed afterwards. Feels like someone is on/off/on/off/on the gas pedal. 18/11/2003 · Bronco developed this surging idle a few weeks ago that kind of comes and goes. when i would be on the pipe alot, the idle would get stuck at higher rpms and surge. Some engines will seem to surge when there's no load because when the drive, auger (if a snow blower) or blade (if a mower) are disengaged, the governor will keep it from reaching full throttle. 7 Auto by replacing the Throttle Position Sensor. It flacuates between 350 and 1000 rpm. 09/11/2007 · I have a 99rs and the car starts nice when cold and idles normal until warm. You may be able to take it apart, and clean it up a little with some carb cleaner. When the car is cold/warm at idle it surges intermittently for 5-7 second intervals. tdiclub. run vac leak test on those and power brake booster vac. I pull over and look under the hood, and find that the whole engine is sort of twisting quite severely at about 1 second …94 Accord Surging Idle was created by Drink I have a 94 accord with and (i guess) common surging idle. Troubleshooting a Surging Engine If your engine is surging or running unevenly, chances are that something is wrong. The symptoms: A few months ago I posted a message about an idle problem I was having. I have read nearly every thread on tbi surging idle, code 44's (lean o2), and everything in between. Lots of folks lately with Holley issues. I recently purchased my first fox body, it has some modifications, AFR heads, BBk throttle body, Trickflow Intake, and a mild street cam(not sure which kind or what degree lobe). The most common causes of a surging idle is a vacuum leak or sticking IAC I agree pull diagnostic codes, all you need is a paperclip and the ability to count to ten. The IAC is slow and tends to overshoot the idle speed desired causing the surging. ? If its jumping up at idle . (self. If you drive it while it's surging about 10 mins into driving it will go away and idle perfect. I'm thinking it might be the transmission or some other sensor. Surging idle on Honda vehicles How to fix a surging idle on Honda vehicles. How to fix reduced engine power message, surging idle Examining the throttle body is the first step in addressing the reduced engine power mode issue. Did the searches, (variety of theories), checked the Haynes manual (little help), and even threw a few parts at the problem (temp sensor, air mass sensor $$$). The car always starts fine whether warm or cold and drives just fine. Generator idle adjustment. It's impossible to hold the …SCV has made idle far smoother and quieter and stopped all surging/hunting. It's a really pulsing/surging idle that was noticeably shaking the whole car (tho still between 900-1000 rpm). May 24, 2009. 02/04/2014 · Some days it does it worse than others but from time to time, when I'm sitting idle, I'll start surging. If it's clogged, it could be having a hard time getting the fuel to the engine. I have checked all the vacuum lines I can find and they seem ok, no cracks or anything, I have checked and reset the timing, I have changed fuel filters and air filters, replaces plugs, wires cap and rotor, and the idle still surges. I have a 4. 7 tbi when at idle it has a low to the idle. Bookmarks some idle surging is to be expected when functioning high-load options while idling. sometimes when its cold and i push on the gas it delays the car from actually moving. Next I changed the CHT sensor and started up the car. once warmed up it surges between 500 and 300 rpm. Its a 2004 F150 with a 5. I start it up, now I 06/11/2007 · Best Answer: I would definitely start with the idle air control valve. php?t=26674706/02/2010 · So today, just driving, my car suddenly starts having this weird idle. odd surging at idle. Re: 01 CR250 surging problem you seldom get any leaking with a bad ignition side seal. com/showthread. After start-up, and after it reached operating temperature, the engine started surging. Understanding and diagnosing surging and high idle 4A-GE 4A-GZE and other L-jetronic systems This problem is a very simple one but most people don't understand the system or why their car is surging . The background on the car is it sat for three years by the previous owner who planned on doing a motor swap. . Dodge Truck & SUV forum with the best tech and vehicle help on the web. Today it runs like a charm Pressure and vacuum tested the crankcase and every part, new gaskets, carb kit, lines, filters, tank vent, etc. Most computer controlled vehicles rely on the coolant temperature sensor to tell the computer whether the engine is cold and needs a rich mixture. When cold (under 25 degrees), my Vibe will warm up for 30 seconds at regular start up RPM. or 50 below nominal block and disconnect all vacuum lines to accessory parts, incl heater. auto. I have a 99rs and the car starts nice when cold and idles normal until warm. 615/. Fuel filter has stopped the gurgling problem. 4L). Need a simpler way to buy tires? Try Tire Agent MAG MPI - Idle/Surging issue You most likely have a dirty IAC motor and/or dirty throttle body. First determine if the idle surging is IAC valve related, or tuning related (fuel or timing. It's not letting any air in, so the motor dies as the idle mix is too rich. High or surging idle while hot can also be that switch not connected to the ECU. 03/12/2015 · I have a 1992 Ford Flareside, its a 5. I have a helix clone made by CF Moto. So I am noticing recently that the engine is surging at idle, very very slightly, like around +/- 50 rpm, just barely visual on the tach, but I heard it before I saw it. Page 1 of 2 1 2 Next > or the idle is set too low. surging idle and stalling. Ok here is my issue I have a 1993 k1500 with a 5. I have a 98 z28 with a4 and 66,000 miles. What's with the surging idle?, Automotive, 19 replies Idle issues, Automotive, 5 replies Keeping an Idle, Automotive, 9 replies 1995 Bronco Idle, Automotive, 1 replies 92 Honda Accord surging, Honda and Acura, 2 replies why do cops let their car idle all day?, Automotive, 34 replies To be quite honest, I've tried to do all of these things and nothing works to stop surging idle problems once mods are introduced to our "lean" running 5. This is for bowl type carburetors only. Re: Yamaha Surging Power/Idle Problems (1) Hard to say from your description, but if the float works freely and is at the called for level, it should be correct. 04/09/2011 · I have a helix clone made by CF Moto. 18/03/2012 · my 2005 cr250 was having a hard time at idle today. I would first check the idle and the port poppet crack pressure and write them down so you can go back to them then change one the both and see what happens. v. What happens is the carbon builds up just behind the throttle blades. There should be large plastic screw on the idle up bypass valve next to the intake plenum. Some others have had this issue and it was the TPS. Water hits the IAC, the idle comes back down. Thread starter Max Attitude; Other than the weird idle it runs fine. It runs like its surging Motor is surging at idle and idling high First it is 7. Guarantied Fix for Surging EF2400is Yamaha. I love the truck except it idles terrable. Idles fine, but every 30 seconds to a minute, it will do a quick surge and then go back to regular idle. I got several very good responses pointing me toward the TPS (throttle position sensor). I need my car jump? My wipers blades only move an inch or two when I turn them on, not a full sweep 1. " I followed the IAC repair thread and when I blew through the hoses I found that I could blow through the top but not the bottom. Engine will run, but it surges, hunts for a constant RPM 1. 4 115. engine will only idle at 900 rpms and has a surg or it lopes until 1100 rpms to smooth out, but put engage in gear and it surges and lopes. With a steady foot on the gas it will the engine will surge. Hey Guys, I have been looking around and cannot seem to find the answer to my problem. I would drive the car at higher speeds without feeling a pulse, but it would return when I stop. It fixed that problem. Have not put any injector cleaner into the vrhicle other then an additive into the new gas in the tank. For instance if I'm driving and I come to a stop light, after about 10 seconds of being stopped, I'll notice it. Surging idle - too much oil? Idled like normal – 700 rpms – smooth as silk. Put it in park or neutral and its fine. Does not do this if in drive. No CEL though. after about an hour of riding, the idle began to erratically go up and down. hey all, i just replaced my IACV with a brand new onenow i have a surging idle problem, it hovers around 2000 rpm thats with the mafs unpluggedwith it plugged in it goes up to 2500 Re: surging idle Post by hamopr8r » Tue Sep 27, 2011 5:20 pm Know this post is about an old topic but I recently had this problem with my 2000 F150 at 80K miles with Triton V8 engine (5. by Fasterthangas » Fri Jan 25, 2019 9:21 pm . Did replacing the pressure regulator fix the surging idle? My '82 Corvette with a 350 had a real bad suring idle and we discovered it was an issue with the TPS. I had a similar issue, but my idle CONSTANTLY went up, down, up, down, etc. engine Surges at idle when cold warmed up it will drop back to 600 RPM's it's normal idle speed. Generac GP6500 Carb Surging User Name: Remember Me? Password: Forgot Password? Join Us! There are typically 3 fuel circuits, idle, off idle, main. Idle Hunting/Surging/Fluctuations after IACV cleaning attempt This is a 2002 Toyota Corolla S with 186,000 miles. If it still continues, then I would change the fuel filter. It's like there is no 1200-3999, it's like a switch. But it does occasionally hiccup at idle and driving. It’s constant whenever it’s idling, hot or cold. 622, 112 LSA using HP Tuners. Thanks for posting my problem, Date: July 5, 2000 I'm having the same issue with a 235 in my shop. Honda has a unique programmed response to Surging. Took scooter for a ride and ran great. It's an E Z fix! On Ford engines, this valve is removable. com/question/at-idle-on-an-intermittent-basis-the-rpm-repeatedly-surges-and-returns-to-normal-by-warren-sMay 29, 2016 Q: While idling, my rpm will surge from about 1100 to 1700 over the time frame of a second or two then return to 1100 over that same time frame 1 Aug 2018If a vehicle idles erratically and surges (idle speed is not steady and increases and decreases), the problem may be a buildup of carbon or fuel varnish deposits 10 Sep 2015 Car Care: Chris Garman explains why your car engine might begin to surge while idling. IAC sensors are the first I would blame, since it controls idle: check it Surging is when the engine revs change noticeably under constant load that had a vacuum leak and at idle the revs would vary between 500 Surging periodically & shuts down while idle. Basically when I start the car it will settle in and idle right around 900 to 1000 I'd say which is where it's set in link. 5 ohms. Maintenance/Repairs. Ok here is my issue I have a 1993 k1500 with a 5. 6l. My 99 TJ 6cyl automatic surges when it sits at a idle in drive. 3 Power Stroke Diesel Engines, And How You Can Fix Them; How Turbochargers Make Improved Full Diesel Engine Power; What Diesel Fuel Is The Best02/02/2006 · Surging idle when cold? Post by O_Positive » Sat Dec 24, 2005 9:04 am I know most problems with a cold engine aren't considered "problems," but I'm curious if anyone else has experienced this, and how it might be fixed. For instance if I'm driving and I come to a stop light, after about 10 seconds of being stopped, I'll notice it. I have noticed when sitting Surging Idle When engine has warmed up, Worse with Air conditioner turned on. 7 and the idle started surging the other day. 354m born 1984. So I'm needing help here. Victory Motorcycles: Motorcycle Forums. reset tps. 4 engine. A wide variety of issues can prompt an engine surge. reset self learn and nursed engine to operating temp. the car surges from about 750 up to around 1050. 20 Jun 2012 In this article, we'll discuss engine idle issues, surging and "hunting" problems. With the idle poppet at 12 and the port at 10 you maybe opening and closing the port poppet at idle vice the idle poppet so it is hunting. You have done great so far in your diagnosis and repairs thus far. Hi. I has so far replaced distributor, cap, rotor, plugs, wires, cts, iac, o2 sensor, map sensor and tps. it seemed to do it much less if i lugged around. Both sounds were quite severe before but it was an instant and very obvious cure. surging idle AccessPort. Just this weekend, i noticed that the temperature gauge will go up to 91 deg. How to Fix Engine Surging. idle drops to close to target in drive with iac at approx 25%. Sometimes after starting it, ill have to hold the pedal to the floor to get it to restart. I am trying to tune out a hesitation in the off idle part throttle range. Have a Perkins T6. BMW E36-E34 M50-M52 Loss of Power, Surging Idle, Whistling Noise – 323i, 325i, 328i, M3, 525i. Status: ResolvedAnswers: 5Surging Idle - TDIClub Forumsforums. 354m. Re: 1HD-T Surging idle Post by stealth » Wed Dec 05, 2018 11:53 pm Thanks turoa, mine doesn't occur on uphill etc, it increases idle rather than decrease and its more random as your driving along, speed and gear is not a factor, uphill and downhill is not a factor either, it can a split second and other times it has been 20mins before it has 22RE surging around 1500-2000 nice and smooth at idle any hesitations nor any of the surging it had. 2004 XC90 Surging Idle & engine dies Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The posting of advertisements, profanity, or personal attacks is prohibited. 7:1 for gasoline, and you’re good to go. My 92 Toyota pickup (22re engine) has developed a bad surging idle issue when the engine is warm. The motor is out of an 88 1 ton pickup and is in a 89 1/2 ton suburban. Then, after driving it for about an hour, completely lost power going down the road. 2000 Dodge Dakota V8 4x4 started surging on highway, then no acceleration and engine light read a P0121 code. 29/01/2014 · looking for some advice. Well, I just got my genset running again after one of my two kids put dirt in the tank. 190E Throttle surging. The actual and desired rail pressure do track together better now. If I unplug the IAC connector while the engine is running, the idle straightens out a bit. Any debris in the filter or housing might 26 Jan 2017 Step 5 - If a vacuum line has caused a leak the engine will surge, When an engine's computer can "hunt" or "surge" at cruising or idle speeds 29 May 2016 Q: While idling, my rpm will surge from about 1100 to 1700 over the time frame of a second or two then return to 1100 over that same time frame 3 Dec 2018 Troubleshooting Engine Driveability Problems: Surging or Misfiring . Like I said18/11/2003 · Bronco developed this surging idle a few weeks ago that kind of comes and goes. anyway to check iac? 2. Share. Have you noticed that the idle seems to surge constantly?18/11/2003 · Bronco developed this surging idle a few weeks ago that kind of comes and goes. First symptoms of problems were surging idle, (going from 600 rpms to about 1200 rpms) While driving has some hesitation. Maybe they have a cylinder internal problem "A corrupt IAC can be one cause of high idle and or surging idle. Take it back to the dealer and let them hunt down the problem. 9 Surging at Idle - Video in reply to e, 02-07-2008 20:02:30 Given the history of transfer pump failures on that engine and the consequences for the injection pump when it does fail, I'd put a new transfer pump on it before the next startup. Q car year: 1994 car model: 325is Hey,i have a 1994 325is m technic that’s been acting weird lately. Always ran great. By Oak Tree Mechanic, The most common cause of surging idle is a vacuum leak. Engine Surging At Idle? Help!!? Answer Questions. After ensuring that the throttle body bore and plate are clean, perform an "idle learn reset/reset idle learn" with the Tech 2 and re-evaluate the concern. Next day idle started to surge. Adjust it inward until the surging stops. 4's are known to be poorly balanced and idle rough 4)I need to break it in for 3,000 Hordes of monsters surging forward in single-file, with only you and your building powers to destroy them. so like the topic says my MK 7) 2. Has anyone had this happen before? I'm not sure about the air screw, I figured this surging is a lean condition. trucks. Vacuum leaks in MAF systems will usually cause a rough idle, but often will not result in surging under cruise. Idle is 500 rpm after warm up. Hey all I know this has been brought up before I believe , but curious what you may have done to remedy a dt466 surging at idle As it sits after a bit it goes up by 100 rpm and quickly drops again Curing Rough Idle. 8t Jetta (AWP) with the 5 speed auto transmission. For a second I thought that I had stalled but my engine started up again and continued surging and shaking every time I was at idle. It is better but still not right, it will at least idle now and is driveable. It was a $25 part and took 37. Cars need maintenance, there's no question about that. Can't seem to get past the final issue I'm having I'm having a problem with the idle surging from 500 to 1500 RPM. The idle should stabilize somewhere above 1500 RPM. Surging/stalling off idle Nov 20 2012, 2:09am So I have been searching the web for a solution to this problem for months and havent found what I am looking for so here it goes. Jan 26, 2017 Step 5 - If a vacuum line has caused a leak the engine will surge, When an engine's computer can "hunt" or "surge" at cruising or idle speeds Feb 18, 2013 What causes a surging idle speed on a Honda or Acura? Here, we're addressing that complaint and what to look for when you run into this  Engine Revving Up and Down at Idle FIXED - YouTube www. Decided to stop at a friends shop and help test drive a Pinzguar – when I re-started the Porsche I immediately got a loping idle. Here's what happens: If I'm driving at very, very low speeds (think grocery store or mall parking lot- 5 mph or so) the engine has a "surging" idle to it. hold your hand in front of the exhaust pipe for a few seconds, smell your hand) It should smell like partially burnt fuel (rich). 27-May-01. Is your AC functioning correctly? is the compressor cycling every 2-3 seconds causing an idle speed change to compensate? Lots of unknowns. I replaced the IAC and clean as much as I could of the intake. I am having a problem With the car surging at idle. But when I take the hose off the PCV valve it seems to run a little better but the chug is still there. I have checked over the surging idle checklist but my car is doing strange things. The stalling typically occurred at idle or upon deceleration. I replaced multiple  At idle, on an intermittent basis, the rpm repeatedly surges and www. New carb, idle surge. Re: Volvo Penta, surging at idle, stalls when given throttle Since your problem occured just after refuelling I would sure be pulling the fuel filter off the engine, pouring the contents into a clear container and looking for water or debris in the fuel. but if you think different let me know. Dealer help has been non-existent, other than to say can't do anything unless Toyota does a computer patch to address issue. . as long as there was no pressure on the accelerator pedal. ask. I have had the computer bench checked by SLI in Illinois and it has come back fine. Tiny Homes are taking off in popularity with people across the country joining the miniature movement but mini homebuilders in Manitoba say municipal bylaws haven’t caught up with the craze. In this article, we'll discuss engine idle issues, surging and "hunting" problems. The computer then commands the idle air control valve to open to the correct setting. How to fix a surging idle on Honda vehicles If you have a Surging idle on Honda, read this post. Re: Engine idle surging up and down Jan 08 2015, 10:24pm I wouldn't be so quick to judge, I have a similar problem and don't believe it's an intake gasket problem. The idle valve gets stuck fairly easily, particularly if the car has not been used for several weeks. If you have a Surging idle on Honda, read this post. Could be the problem with surging as well The most common and overlooked thing for a surging idle is the throttle body. 19/02/2012 · The most common causes of a surging idle is a vacuum leak or sticking IAC I agree pull diagnostic codes, all you need is a paperclip and the ability to count to ten. 08-21-2010, 03:24 AM #3. 25/09/2003 · surging idle Discussion in '4th Gen Camaro LT1 (1993-1997 Camaro)' started by On a Rice diet, Sep 10, 2003. Took it in to dealer and they replaced the map sensor. Need to adjust timing? Discussion in '1969-1972 K5 Blazer that will cause the high idle. A new throttle housing was installed to remedy the problem. but is just started stooling at red light and in traffic and just started to do thisFerrari 355 | Surging at idle and poor running This time the customer reported bad surging at idle when the vehicle was warm, general poor running, and repeat DTC logging of LH BANK FRONT O 2 SENSOR and RH BANK FRONT O 2 SENSOR . 92 Toyota Pickup surging idle issue 85 Answers. Also, on occasion when I start the engine the fuel gauge fails to “come on”, stays down at empty and the out of fuel indicator comes on. Well I changed the fpr. The surging becomes less noticeable after the engine warms up - still an idle adjustment issue? I will re-adjust the carb per the instructions again and see if there is any difference, maybe I didnt wait long enough the last time I did it to ensure the engine was warmed up enough so the calibration is off. I've cleaned the carburetor, replaced the fuel filter, and chevrolet cobalt surging, 08 pontiac g5 surges, 2008 pontiac g5 serging, 2008 cobalt surging, pontiac surging idle, 08 cobalt surging, 2008 pontiac g5 engine surge, 08 pontiac g5 idling rpm, pontiac g5 idle high, 2008 pontiac g5 surges at 1800 rpm, powered by vBulletin general motors active fuel management, high idle rpm pontiac g5, 07 pontiac Engine surging below 1600 rpms is usually air bubbles in the coolant. Comments: I have a 1986 325 es that has a surging idle issue that I haven't been unable to solve for months. Like I said P0505 P1505 P1129 surging idle CRV Fix code P0505 P1505 P1129 surging idle Honda CRV. A couple of things to consider. Car Surging Generator. 5 hp motor on it. A mechanic told me not to worry. idle surge, running rough, guzzling gas - 88 Ranger Was searching the interwebs, landed on that thread, unfortuantly it's like a 2003 Ranger. when i blip the throttle, the rpmsUnderstanding and diagnosing surging and high idle 4A-GE 4A-GZE and other L-jetronic systems This problem is a very simple one but most people don't understand the system or why their car is surging . No fault codes were stored. Idle now surges from approx 1500-1900 once warm. You are posting a reply to: Jeep Grand Cherokee Surging Idle. Mainly when it is warm, like at a stop light or sitting in a drive through. This causes improper idle and code setting for various things. My 2002 millenia, has rough idle, periodic surging/bucking, and slight engine knock below 2000 RPMs?? dealer has no clue and it cost 2 Gs to find that out. Engine now surges. Either the control box (ICM) or valve (ICV) is probably dead. surge synonyms, surge pronunciation, surge translation, English dictionary definition of surge. The surging would generally occur between 3,500 and 4,000 RPMs. The truck throws no codes (just checked). I have replaced the mass air flow sensor and the vacuum line coming from the PCV valve to the rear of the air intake manifold. Not sure if it matters but the truck is a stick, if I pull up say to leave a parking lot then get stuck at a light it will run fine while under throttle then start surging again. Pressure Washer Throttle Surging This is very similar to another recent thread, but my problem only occurs at idle. It sounds almost like it it su … read more Rough idle, surging, and hesitation - 1998 Chevrolet Blazer Get an instant quote for your car Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing 94 Accord Surging Idle was created by Drink I have a 94 accord with and (i guess) common surging idle. surging or hunting idle is complex but for sure the ECU has lost control of idle speed , there are 2 macro reasons, (vast causes) 1: ISC is stuck (in non SAE terms, the idle speed control valve ) is stuck. When started cold My car DOHC Duratec engine surges between 900 and 1200 rpm, when it warms up the idle sits at about 500-600 rpm. If the engine is hunting or surging slowly up A surging idle with nominally correct jetting could signal a vacuum leak. When at idle, it surges from around 700 RPM up to 1500 RPM. Re: Surging/Idle Trouble with 4-Stroke Outboard Originally Posted by atmartin I've had the motor for about a year and it's mostly used for maneuvering around launching ramps and mooring fields, plus it gets laid down on its side for long periods (the correct side at least). Staff #2. Surging idle Discussion in ' Whether the 5. Mine does it also. The slightest touch and it shoots up to, you guessed it, 4000 rpm. One of the most common glitches on the BMW E30 3 Series is an erratic engine idle. The pulsing is the ECU having a hard time compensating. 1. it surges between 400-800 rpm constantly. I have read on other threads that the warm up regulator may be at fault. 88 Ranger Auto, 2. none of the surging problems seem to be every 100% figured out, or they dont seem to have the exact same problems. The carb I am using is a NOS Holley 9834-1 Here is what happens: Car starts fine hot or cold. What I mean by a surging idle is how it would rhythmically idle low at a less than 1,000 rpm and then surge to about 1,500 to 2,000 rpm. It idles at 1000rpm for about 5 secs then goes to 1200rpm for about 2 secs then back down, etc, etc. After replacing the TPS it still surged until we realized the wiring and connector with the TPS was worn out and cauing issues. They usually show erratic idle when hot. This does not happen if shifted into park mode. Air hits the IAC, the engine revs up. however I think I have a vac leak cause I couldn't get the idle where I wanted it. Pull the idle valve off the throttle body (4 phillips screws on the bottom), remove the electrical part of the valve (2 screws) and clean the valve with solvent until it rotates freely. its not bad but it drives me crazy! strange thing is that it did not do it until i put a header on yesterday?!?! anyway here is the setup: BC 272 cams, modded stock injectors (STI), ported heads, base FP is 50psi and i run on e85. Re: Cummins 5. Truck surging/rough idle in drive Discuss 1990 TBI 5. It has about 125 hours on it and I have maintained it well until last year when it sat outside for the entire year. Replaced a coil on my mower, new plugs,air filter and blades when finished. 9 Common Problems With 7. Notice: Depending on the vehicle you are working on, the "idle learn reset/reset idle learn" is normally found on the Tech 2 ECM menu for Module Set Up or Special Functions/TAC System. If you do, this surging is caused by the idle up solenoid. It was going crazy at idle strarted to throw money at it instead of going back to the basics . The idle surges up and down. 1999 F350 7. Seems like if the truck is cold I can start it up and a couple blocks later it starts to surge again. Any debris in the filter or housing might Sep 10, 2015 Car Care: Chris Garman explains why your car engine might begin to surge while idling. 5S came in with a high cold idle followed by a high and surging warm idle. The mower may not die completely as this happens, but it may surge the entire time you mow the lawn. my 27/09/2011 · my truck runs great, a little vibration in the mornings at a stop light, but as soon as i start driving it goes away, and only happens when i first pull out of the driveway, but sometimes when i put it in park the engine surges up and down about 200 to 300 rpm's a couple of times and then goes back to normal, otherwise everything else is fine BMW E30 3 Series Idle Speed Troubleshooting . A car idling Erratic idle: lack of steady air and/or fuel supply, or erratic/weak sparking. 9 is cold or warm, sitting in park or in drive at a stop or light, the idle will surge up and down. Not sure about the surging of the idle speed. Surging and Stalling Fix by Joe M. 11/01/2006 · Surging Idle Recently I've noticed that the car doesn't return to idle when you let off the gas. 18/05/2013 · Hi people of the Transit. The fault code is throttle motor and that would cause 2 of the 3 problems also. Perkins T6. Any debris in the filter or housing might restrict air flow to the engine enough to affect idle speeds. I am experiencing surging idle-whatever speed only been 45 mph so far with it. 3. any ideas? other wise im going to try the Idle air control valve. Categories: American Classic Cars | Muscle & Pony Cars. had injectors cleaned and the injector pump overhauled. Surging at idle. You need to remove and either clean or replace the IAC motor and clean the throttle body where the blades close. To roll or be tossed about on waves, as a boat. 0's and this gets lost in translation from user to user. Surging idle. 17/10/2014 · Hello. 2,260. Surging idle, before and after new IAC valve. Examining the throttle body is the first step in addressing the reduced engine power mode issue. I have a 2006 Commander with the 4. The owner just replaced the throttle assembly but still no difference. The Closed Loop Advanced Control (System ICF) can cause idle oscillation if it's set too high. There is a vacuum line on the upper corner of the throttle body that goes into the control box on the fire wall, #21, if that is disconnected the idle surging stops and the idle drops very low and is a little rough. This is a discussion on Surging idle, before and after new IAC valve within the General Help forums, part of the LSx Technical Help Section category; I have a surging problem, about every 3 seconds the car revs slightly. Surging, idle hunting is nothing to worry about?, Automotive, 16 replies Idle issues, Automotive, 5 replies ford windstar low idle, Ford and Lincoln, 0 replies Keeping an Idle, Automotive, 9 replies 92 Honda Accord surging, Honda and Acura, 2 replies why do cops let their car idle all day?, Automotive, 34 replies idle control sol and set it to idle at 550 or 600 rpm. Surging Idle Issue. Hey guys, So today, just driving, my car suddenly starts having this weird idle. By doing this I simulated the ECU sent 12vts to the IACV and closed the "air leak" or bypassed air. It is a little better with more throttle and worst at idle any suggestion out there would be helpfulMy 2002 millenia, has rough idle, periodic surging/bucking, and slight engine knock below 2000 RPMs?? dealer has no clue and it cost 2 Gs to find that out. The push mower will not idle correctly or at least how I think it should. 3/3/2019 1/1/0001 Surging idle on my 2000 BMW z3 w/139,000 miles. Try setting the base idle within 100 rpm of you chip's idle speed. I'm currently working on a Mack E7-300, and for some reason it has a surging idle, hot or cold, it's a V-Mack 1. My idle jet was a little different than the one shown, but still had the very tiny orifice on the end that was plugged. but if anyone's had this happen, please let me know! it's just weird that the overheating and the idle thing happened at the same time. Then reset the TPS as you will probably raise it a bit. Surging Idle I got it started but when the engine warms up the idle starts to go up and down. The first thing im gonna do is replace the07/01/2003 · Fast surging when W124 is in gear (worse in reverse), slow rise and fall of idle speed when in park. 9L Engine and Transmissions (2003-2007) Archive' started by turbojet, Jan 1, 2004. The fact that it surges indicates the throttle position TPS switch is telling it to control idle but it can't and it revs up to the fuel cutout at 1500 rpm. However, after riding for around 15 minutes, the bike develops a surging condition at idle or while decelerating at slow RPM. The throttle is always open just a crack. Overhauled injector was set at 2500 instead of 3000 rpm WOT no load. The bike has gobs of power and always starts first kick. My car has an idle surge. Ford Taurus Forum Ford Five Hundred / Mercury Montego / Ford Freestyle Forums Under the Hood; I have the same surging problem in my '06 limited. 07 is hunting/surging at idle but not lacking power. Pull the carb, pull the idle needle and run a wire through the bleed inlet (on the intake of the carb on the same side as the needle) and through the passage to the idle port after the slide. 4. What Causes High Idle Problems? The number one cause for high idle is an imbalance in air pressure. hey john i stay in indianapolis and have the above rough idle at any rpm below 900 and hard cold start issues with carbureted 1968 307. But if you start it and drive it right after starting before the surge starts, it will idle perfectly fine at 1000rpms. About 3 months ago I noticed a lil rough idle starting. This adjustment will cause surging in the engine speed and difficulty in i'm hoping it's something easy like a thermostat. But if you cold start it and rev it a little bit the surging will start Immediately. I've had my air/idle control valve cleaned, and checked the idle screw seal to see if there was a vacu Hello there, many different faults can cause your 2000 Ford Expedition to have a surging idle and stalling issues. ) If temporarily blocking off the IAC air inlet port stops the surging, then work on the IAC parameters. it surges up and down. I started the car up this morning and now have a surging idle. sometimes stalls once stopped. Engines don’t like to idle lean; a lean air/fuel ratio is one of the biggest causes of a surging idle. Early F650GSs (both the regular GS and Dakar version) were plagued with stalling and surging problems. 2002 Mercury Cougar I was very frustrated trying yo find a solution to this idle problem. First let's cover the "basics" in terms of the possible causes of engine surging/hunting, where engine speed suddenly (or slowly) changes. This residue can cause idle speed to become uneven and noticeable to the driver Why does my car idle at a really low RPM while stopped, and start shaking? Update Cancel. It surges from about 1000rpm down to about about 4-500 and back again. Surging idle on Honda vehicles November 28, 2009. When an engine's computer can "hunt" or "surge" at cruising or idle speeds it is searching for program compliance, there is a In this article, we'll discuss engine idle issues, surging and "hunting" problems. Thread Status: Not open for further replies. 9 6BTA 260 horsepower surging at idle This topic contains 1 reply, has 2 voices, and was last updated by Tony Athens 1 year ago . I just got the car and noticed the idle will jump anywhere from 300-950 constantly and gets very close to stalling. I have been having trouble with A) Rough idle and B) surging power up in the rev range. I just went out and checked and I'm running about 3725 high idle but after it runs a few seconds the surg comes in. If you car will rev up then drop then rev then drop like it's hunting for idle clean the throttle body. Perkins 6. Back at the dock when I started the motor, it would start 1st crank and idle normally for about 5 seconds, at which time it would surge to about 1100 rpms and stay there. , The the idle drops and surges up and down, it started doing this after I took out the apexi SAFC. the surge/slump dance at idle may be a fuel injector(s) not delivering enough fuel and the IAC trying to keep the idle speed correct. This is the bypass hole for the IACV. That surging is the classic idle control system failure. 9 6BTA 260 horsepower surging at idle Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › 5. I have a mk IV 1. Surging is when the engine revs change noticeably under constant load and constant throttle (which in theory should result in constant RPM). It will hover around 1800 RPM for a couple of seconds then SLOWLY drop to a rough idle at 800 RPM. ran up to 4000 no sweat so i beleive its either a bad TPS Idle relearn is for later models around 2000 and up. My 1998 Ford expedition has a surging idle when topped or in park. Run BG44 through the injectors, if still an issue, check the injector resistance (12-12. This is worrying me because I don’t know how serious it is…The truck runs 2011 victory surging, 2016 victory idle issue, motorcycle engine surges at idle, victory motorcycle running rough. When driving about 40 mph and then accelerating the car Truck Trend Garage: 2004 Chevrolet Silverado Idle Surge Continues Diesel Power Challenge 2018 Competitor Kody Pulliam – #DPC2018 Installing a BDS Suspension 6-inch lift kit on a 2004 Chevy Did it ever run good at high speed? My 6. because the my 04 lly just turned 200xxx and I noticed a surge in idle for a while, now it has really become noticable in gear with a few hundred rpm fluctuation lly surge at idle in/out gear - Diesel Place : Chevrolet and GMC Diesel Truck Forums surging or hunting idle is complex but for sure the ECU has lost control of idle speed , there are 2 macro reasons, (vast causes) 1: ISC is stuck (in non SAE terms, the idle speed control valve ) is stuck. 1) your normal idle should be 900 rpm +- 50 rpm so its a bit low 2) the oscillation at idle is indicative of a mixture that is too rich at idle. After the part replacelent, the idle surge became worse. A clogged or obstructed air filter can cause surging at idle, and foreign objects can enter the filter housing at any time. It would surge and kill. Followed next by a faulty IAC There are a number of techniques. I'm running Klotz @ 40:1 also. High idle 1989 Toyota 4WD pickup 22R-E - After motor warms up its starts idling from high idle to low idle continuously06/01/2004 · I just purchased my first Ford. Is it surging at idle or on the road at high way speed. Maybe I am home free. After messing around it was easier to just raise idle Rpms a little to smooth it out. Now the truck idles rough and surges on a cold start. It will fluctuate between 400 - 1500 rpm. yourmechanic. My 99 f350 7. Hey, if anyone has some crazy idle problems, and maybe has the surging (lockup-clutch disengaging and engaging) while crusing it fixed my 2000 4. 0l? I have to give my car the "anti-idle surge vacuum leak" and it reads 14 inches at idle, and 16 inches with the leak plugged, surging away. 4 merc 2001 mag mpi motor Surges to 1400 rpms then give it gas goes to 2000 rpms replaced iac,tpi,map new plugs wires distributor and rotor also replaced plenum gaskets checked for codes none found. 12/12/2005 · So im beggining my quest to figure out why my car idles so bad, I just bought the car a couple of weeks ago. The sound resembles repeatedly throttling up and powering down the mower. I bought the car 7 month ago and it idled really smooth. sometimes even dies when cold motor. a d b y T i r e A g e n t. So I'm needing help here. What causes engine surging? Discussion in 'Mechanic and Repair' started by Okiebug003, Oct 3, 2009. It would go 800 - 2k, sometimes 3k. Surging and rough idle is likely from a vacuum leak or faulty purge valve. The surging kinda seems like When the ECM battery gets week the Is the engine surging or is it changing gears being an automatic. 0 w/auto and has sorta the same symptoms,consistanly surges at idle in drive or park of course check light The car surges at idle and has some hesitation when driving. Hemi surging while idle Discussion in ' cleaned the Idle Air Controller and that fixed it right up. Surging at idle Unfortunately problem has not gone away. 200k 1. I If the engine is surging upon startup and not settling down to the proper idle, a sticking IAC could be what the issue is. The archives cover this topic well, but I have an odd twist The RPM slowly fluctuated up'n'down between about 700 and 1200, on about a 3-5 second cycle. the more you mess with the brake the 26/11/2011 · Ok, beings as I'm new to the dodge world I'm trying to learn all I can. with the IAC unplugged, it stops. DeaconBlue. runs fine in open loop . Surging periodically & shuts down while idle. when i blip the throttle, the rpmsin "idle tune" initially there was random sucking/surging from iac. A few of the things I noticed right away was a fairly new battery. Replaced the 3/2/2019 1/1/0001; I have a 2004 BMW x5 30d. Idle surging when cold? Discussion in '5. Here's How to Fix A Rough Idle or Stalling Car. I replaced plugs,wires,and fuel filter but still had the problem. I changed the oxygen sensor first, started up the car and still had the surging idle. Re: Engine Surging / Lurching at Idle Post by WI05Freestyle » Tue Jul 28, 2009 2:41 pm They have, by law, manufacture or have the part available for at least 7 years after the date of continuation of that part. There are two causes of a surging idle: mechanical and tuning. Please refer to our CNET Forums policies for details. surged , surg·ing , surg·es v. Cat 3126 "surging" Discussion in 'Truck The most common thing on my Cat when surging and D rating on a climb is the Racor fuel/water separator FL uses, bowl has Surging Idle 95 S320, Where is overload relay?? Results 1 to 2 of 2 Discuss Surging Idle 95 S320, Where is overload relay?? in the alt. If you slowly apply gas it shutters and the rpm's drop, sometimes it recovers and runs okay above 900 rpm and sometimes it stalls. At an standstill, it's never done it again, but while driving, at any speed, but usually between 20-50 mph, the engine will surge up and down 3-500 rpms. There are a few other potential causes such as a throttle cable, fuel pump, throttle body, wiring harness fault, exhaust leak, oxygen sensors or a coil. I have replaced the TPS sensor, the intake temperature air sensor, and the IAT sensor Home » 5. hey, so im thinking my surging idle is cause do to my IAC valve. In gear, with my foot on the brake, the idle would surge from 600-900, maybe a 2 second cycle. try setting the bike to idle and loosening the ignition cover, if the idling increases in speed, the seal is bad. Gather a little more intel to better arm yourself for troubleshooting this condition. Surging Idle, Long Starts, Erratic RPM Behavior, Bucking at low RPM. Been to the dealer twice. if it is you will get gas in the vacuum line, causing ths surging. Then on take off, there's a bit of hesitation right at the beginning. 3/3/2019 1/1/0001; Surging idle on my 2000 BMW z3 w/139,000 miles. We are the premiere place for 1st gen and 2nd gen Dodges as well as a great source for newer models as well. First let's cover the "basics" in terms of the possible causes of A clogged or obstructed air filter can cause surging at idle, and foreign objects can enter the filter housing at any time. Never had an idle problem before. If you’ve checked your IAC and your Honda still suffers from a surging idle, check your FITV. ok so i have tried EVERYTHING to try and get the surging to go away. Push mower surging idle I have a Murray push mower that has a briggs and stratton engine so I am not too sure if this post belongs here. Lawn mower surging results from continual accelerating and decelerating of engine revolutions. This is a discussion on Surging idle within the External Engine forums, part of the LSx Technical Help Section category; We just did afr 225 heads ms4 cam and fast 102/102 setup with 100 maf and tuned by frost and Is it surging in gear? if so I just had this issue and I reset the base idle. idles Any less and it would go back to surging), and I also noticed that if I put the car in reverse it would stop surging immediately and would go to regular idle speed, but as soon as I would put it in park or neutral it would start surging/pulsing again. Surging at 40-45 on cruise would mean you need to jet up 2 sizes and retest. If you have P0505 P1505 P1129 surging idle Honda CRV you may have a bum idle air control valve (IAC). On an engine with sequential injection, this is simple enough – get the engine idling at 14. The Vehicle had been bought to the workshop to find out why the Idle was so erratic, the vehicle had undergone a few repairs already such as new spark plugs, air mass meter and throttlbody clean and reset the idle adaptions. It was a 95 prelude and was the FITV (Fast Idle Thermo Valve). Stop the fuel flow to the carburetor, either turn off the fuel valve or pinch off the line with a pair of fuel line pinch off pliers or a pair of vice grips. Been working on a buddy's '97 4. When a lawn mower surges, it sounds as if the engine reaches full speed, only to decelerate quickly. Well, finally on the third trip to the dealer in 9 months for the surging/high idle problem, the dealer told me "Ford has a fix for it now. Given that the bike is a '97 and you're not the original owner, it's very possible. The EACV or Electronic Air Control Valve is a big part of maintaining your Honda Civic idle. An engine that is idling too high may be caused by a faulty idle air control motor valve that has completely failed or that has simply become weak and is not functioning correctly. The following vehicle had an idle surge from 1500 – 1800 RPM. 3 wavelike surging when warming up on cold mornings. JDP6693. The engine eventually dies but will start 350z low and surging idle. the car runs amazing at driving speeds and anything above idle. My problem is a surging idle. It's a really pulsing/surging idle that was noticeably shaking the whole car (tho still between 900-1000 rpm). I know this is not I've had problems with my truck's idle surging when at a full stop. Posted by RV Doctor. See a video of it idling. The idle mix screw is a bleed screw - meaning it lets air in. 3 will start on cold mornings but after a few minutes idle will start to surge up and down. Hello. Smooth idle but surging/thrusting on acceleration I noticed it surging the other day while throttling down it goes away as far as i can tell when you let off the accel to just light pressure when you reach ur speed. Dr_Dogg 2014-08-17 02:14:08 UTC #1. ? You need a map removing the cat upsets the whole air/fuel ratios and removes a lot of the back pressure. 09/07/2018 · Update: I suspect that the port Honda refers to in the service manual is the port that leads to the idle speed control screw. If you can blow air through the hoses, with your mouth, not compressed air, the the IAC needs attention. If this is your first visit, be sure to check out the FAQ by clicking the link above. 03-18-12 12:20 AM by JDP6693. 6 northstar surging at idle Rpcm replaced a year ago. when closed loop starts pcm drives the ics back and forth erractil Engine vibrates and surges at driving speed Re: Idle Surging My JD 410B had idle issues once, it was the fuel pump. 0's. Prior to this 97 I've solely been a chevy guy. Unable to sustain full speed because of the lean mix, the rpm drop down until the mix gets rich again from the idle (slow speed) circuit. I would check the EGR valve I had it happen to my car a GM . 7 Idle surging,stalling in the alt. My MTD pressure washer has a Honda engine, with fixed throttle. The IAC also assists with off idle acceleration, so this could doubly so be at issue. 5hp Honda had a bad surging problem that was caused by a cracked intake gasket. The voltage checks out at 110-115 volts AC during idle or load. Surging At Idle. This answer is applicable for many BMWs in addition to the one listed below. Typically, it doesn’t die, but the surging may repeat during the entire time the mower is in use. Frustrated with surging idle this could be a quick fix try this before spending money and countless hours trying to find problem. Hey all! First post here and had a question on diagnosing a idle problem I have. 82 :) seconds to replace. Engine surging at cold start up [Re: Garrett Generalovic] #295257 My S80 started surging this past spring when it got hot and I put the AC on. Changed iac valve, checked for vaccum leaks. Surging BELOW suggests a DEcrease in air or fuel flow, or an electronic problem. Define surge. After an hour at 80 mph or first thing in the morning. may have even just been a fluke. I'v been told 1) wrong grade of gas (89 octaine) and should only run Chevron in it 2) its computer is gettin to know me 3) 5. when i blip the throttle, the rpms Well that seems to have taken care of it, I got the IAC down where it needs to be, and the throttle to respond appropriately without stumbling, or the idle surging, it seems to like to idle right around 1200-1300, if i go any lower it starts to seem to search for a steady idle, but being a standard I can live with a higher idle. 05 Duramax surging at idle. It will '97 Ford F150, surging idle, poor MPG, no codes was created by LMacNeill After you drive it for a couple of minutes then stop at a stop-sign or red-light, the idle will "surge" -- like it's trying to stall out and then revs up to recover, over and over. 354 Series. surging idleIf a vehicle idles erratically and surges (idle speed is not steady and increases and decreases), the problem may be a buildup of carbon or fuel varnish deposits Jun 20, 2012 In this article, we'll discuss engine idle issues, surging and "hunting" problems. To rise and move in a billowing or swelling manner. ok so for awhile now my sonic surges when the a/c is on when the vehicle is idling. reset idle target to 700 and adj idle to 750 w/iac % between 0 & 5. What causes a surging idle speed on a Honda or Acura? Here, we’re addressing that complaint and what to look for when you run into this symptom. The revs increase slightly ( as if accelaerating) for a second or so and then return to normal idle and this is repeated until take off again. It has the kawasaki fs600v 18. com/youtube?q=surging+idle&v=c1UuN7kEQ2w Aug 1, 2018 Car won't idle normally? Engine surges or revs up at idle? Mine used to as well, until I discovered what the problem was. Could be a worn left side crank seal which is a fairly quick repair. CHECK THE BASICS FIRST!!! Compression Test,Vacuum leaks!!!! Always check injector pulse, spark & fuel supply EVEN if you have a scan tool. Idle going from 1000 to 2000 - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. Also, my diesel kubota garden tractor had the same issues, but in that case, it was a secondary fuel filter. You went for a drive after cleaning things and code re-set, then first touch of the brake and fault returns, I would change the brake switch and clear code then try again. Things seem to be back to normal with proper idle speed and no surging. 2003 NISSAN ALTIMA RPM SURGE AT IDLE - Answered by a verified Nissan Mechanic10/06/2016 · Ok, I have a John Deere LA115 Mower. Fast surging when W124 is in gear (worse in reverse), slow rise and fall of idle speed when in park. Nissan) submitted 4 years ago by gossf. Occasionally while idle surging the car comes close to stalling (headlights dim, etc. Some days it does it worse than others but from time to time, when I'm sitting idle, I'll start surging. adjusted MAF at that A couple weeks ago I was at a stop light when my car, a 98 Ford ZX2, shook really hard. , The the idle drops and surges up and down, it started doing this after I took out the apexi SAFC. efi spares trade tips . I should I spent a lot more time Googling different IDLE TUNING The following is a collection of idle tuning notes, tips ‘n tricks and How-2’s for idle tuning a big cam (or any cam for that matter) that I used when dialing in my 248/254, . And when it comes to older cars and This 2004 Nissan Altima 2. Surging While Idleing. ) I'm going to have my tuner dial up the idle point a bit with the AP next time I'm in his neighbourhood. It has about 125 hours on it and I have maintained it well until last year when it sat outside for the entire yea When I bought this car, 89 Toy Camry, it'd been sitting awhile. I have replaced the TPS , and the IAC. i took it into the dealer and they replaced multiple clutches Re: Surging at idle. A weak cylinder slumps RPM, IAC opens, more fuel-no weak cylinder-IAC closes when RPM rises too much etc. surging idle Idle Control Valve / Surging Idle Normally, even though it is a little low (about 600rpm), everything is relatively smooth. While the car is surging, smell the exhaust (ie. I changed the long block and used all accessories and sensors from the original enSurging/stalling off idle Nov 20 2012, 2:09am So I have been searching the web for a solution to this problem for months and havent found what I am looking for so here it goes. Pull the connector off the idle switch. Then on take off, there's a bit of hesitation right at the beginning. The surging idle is still there but seems faster and surging over a smaller rpm range. the more you mess with the brake the Ok, beings as I'm new to the dodge world I'm trying to learn all I can. Surging idle on Scag Tiger Cat with 19 hp Kawasaki Have a 2009 Tiger Cat. When the Idle was surging all over I took my finger and blocked the top port in the throttle body. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America). 05/12/2018 · Hey there guys, Bought an 80 Series Cruiser with a 1HD-T last week and noticed that at random times the idle surges from 600rpm to 1000rpm Wether it's cold or warm doesn't matter. " The problem; I started noticing it at red lights or stop signs. 9 EFI - Bought it this weekend. 2000 honda civic ex. or a mile the idle will creep up to 1,000-1,1000 RPM. A few days ago it would not idle. If you can't adjust the idle from the adjustment screw, you may have to adjust the tps or ignition timing. When the engine is started the idle surges up and down. Hey everyone, I would love to hear some input/help with a surging idle issue I am having on my 2012 exmark turf tracer. Your 87 have an adjustment screw for the idle. yea this is only at idle, with any throttle the surge goes away. April 26, 2011. intr. The MAF (mass air flow) systems used on many cars measure the amount of air flowing through the engine's throttle valve (throttle body) and use that information to determine how much fuel to inject. I had Auto zone put the computer on it and received codes, P0174, P0113, P0102 How to fix a surging idle on Honda vehicles. 2003 NISSAN ALTIMA RPM SURGE AT IDLE - Answered by a verified Nissan Mechanic Ok, I have a John Deere LA115 Mower. 8L that does not like to idle when its cold. 23/07/2011 · I have a 97 Grand Cherokee Limited 5. '82 vette engine surging' After Shark Former Member - Send Surging idle yes ive searched. A very typical one is my Eagle Talon, that had a vacuum leak and at idle the revs would vary between 500 and 1500 rpm as the ECU was trying to control the idle, but didn't know about the additional air. Now once in a while, becoming more frequent when time goes on, the truck will go into a surging idle and then stall after about two or three surges when i come to a stop, say at a stop light or stop sighn. #16 Antoniogreens , Jun 20, 2017 This time the customer reported bad surging at idle when the vehicle was warm, general poor running, and repeat DTC logging of LH BANK FRONT O 2 SENSOR and RH BANK FRONT O 2 SENSOR. Shutter and shake at take off when cold is a different problem again. 2L V8 that I bought with a blown engine. chevy forum at Car Dealer Forums; Truck runs great, but recently when the engine comes off the enriching circuit. Fix-take out the low idle screw and spray carb cleaner in the hole for the screw until the blockage clears. When I drove it the truck would surge in acceleration when shifting between gears. Only happens at these low speeds which is right around 800-1000 RPM, just barely above idle. mercedes forum at Car Dealer Forums; Greetings, My 95 S320 has recently developed a surging idle. Hello there, many different faults can cause your 2000 Ford Expedition to have a surging idle and stalling issues. btw my car is basically stock. Like I saidP0505 P1505 P1129 surging idle CRV Fix code P0505 P1505 P1129 surging idle Honda CRV. (2) Basically the air box cover is a silencer and the gasket is really unnecessary. 91 Honda Civic surging at idle [ 2 Answers ] I have a 91 Honda Civic DX, the engine surges around 500rpm (guessing) at an idle, seems to get worse in hot weather. Is your 5. etc Been there. Its not as bad when the engine is hot but you can still see it surging. Partial Blockage of Main Jet. But the EEC-IV computer is among the more reliable in the auto industry, and when it does fail, this isn't a common symptom, so I doubt it's the problem. The idle is just fine when the car is cold; however, once the car gets up to temp after about 5-7 min. I just bought a 2008 350z enthusiast edition with 83k miles. It has stalled on me a couple times when cruising to a stop or turn while I'm neutral. Rebuilt my carberator in 420 crawler and now i cant get engine to run smooth . Hopefully that'll fix the problem. It fine tunes your air/fuel mxiture and causes stalling and power loss whenclogged up. I suspect that this is a passage that bleeds air around the throttle plate to establish the base idle speed. I also picked the injector harnesses, all that changed was the balance rates slightly. 2. Here is the issue. Surging Idle (cold engine) on 1985 528e Yes, yet another "surging idle" question. Just a little bit about the surging, it doesn't start happening till after you start moving a driving for a bit. Understanding and diagnosing surging and high idle 4A-GE 4A-GZE and other L-jetronic systems Submitted by yoshimitsuspeed on Wed, 12/18/2013 - 10:25 In my opinion the BGB (Big Green Book) or FSM (Factory Service Manual) is the best tool for diagnosing and troubleshooting. ) Take $20 to the local quicky lube, and hae then remove and clean out your IDLE AIR CONTROL valve. 11/03/2014 · My 1998 Nissan Altima has been idle hunting/surging at startup for a while, and also has a slightly high idle after highway driving. How to fix reduced engine power message, surging idle. Couple weeks ago, I posted about my tractor surging slightly while running at full throttle (pedal throttle 1900 rpm) on the road Was very slight to the point that it was almost not noticeable. Howto locate a vacuum leak Having said that. 0 with the mazda 5-speed manual (4 with over). A lot of what is mentioned in this thread works for FOX body 5. Lean causes the surging because as the engine accelerates to top speed the carb's main (high speed) circuit mix goes lean. Surging ABOVE normal idle would suggest a vacuum leak because that INcreases airflow. in "idle tune" initially there was random sucking/surging from iac