2012 Suburban Rough Idle

Cars aren't meant to feel boggy, and the tip-in point is changed quite a bit when the A/C compressor is running. Special Deals for the Ranger. After the first few seconds, its idles rough. I pulled the TB (drive by wire) off and cleaned it really well and it bumped up to about 600-700 for a while but now it's back to 500. It eventually set off the check engine l. My 2012 chevy cruze has a rough idle. i have no trouble codes or check engine light. They did the sensor rebuild kit repair. If required, set the idle adjustment on the carbuetor so that the engine idles smoothly. I have an Peugeot 206 / year 2000 / 1. What do you catigorize as a rough idle? I have a very similar issue. Order your Idle Air Control Valve - 1AISC00030 today at 1AAuto. 3s, but did not see the problem in the 5. It was even lower when I bought it, sometimes as low as 300 rpm. I have a 2005 Nissan Sentra with 74,000 miles on it, and it has had trouble starting for 2 or 3 years. The most common symptom of the dirty throttle body is rough idling. Although my opinion (supported by others too) is that the idle speed needs to be re-learned, the system should still be capable of maintaining an idle speed. Oh yeah I have a 2002 Pontiac Grand Am 2. Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. Find your perfect car with Edmunds expert reviews, car comparisons, and pricing tools. The elves have been busy in the Epic Stock Media sound effects workshop this holiday season. I can see air bubbles in the. Chevrolet Sonic owners have reported 9 problems related to car stall (under the engine and engine cooling category). White smoke and/or coolant odor may come from the exhaust for an extended period of time at cold start as well. When it shakes the check engine light will flash rapidly then stop. Normally it depends on what kind of car you are driving, and what temperature outside is. com and a T20 Torx bit and ratchet with an extension. The engine may. Idle is rough and low power (for a Q that is). Idle in non-eco is 'silk smooth. If any of these is lacking, the engine may stall. 8L, that had 97Kmiles on it when I recently bought it. seemed to have fixed it or at least made it better. One thing that has changed is the miss is random at idle and also under 2500 rpm. 24 new and used 35 Foot 5th Wheel Camper cars for sale at smartmotorguide. It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. Our other issues is the very loud idle which several people have commented on. 27 Nov 2012 But the stable idle won't last long, it'll idle low and rough. The vibration analyzer should be used twice: 1st to determine the customer concern is a rough/harsh/stiff ride and 2nd after the repairs to verify the cause is repaired and to identify if other inputs / disturbances are present. Features: MADE IN THE USA! Vacuum formed & molded to the exact shape of the original dashboard Easily installs over your original dash to cover cracks and other damages. View Profile 1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a. They suggested I put some miles on it, to allow the new valves to seat, and then bring it back in for further evaluation if the rough idle condition was still present. 4-L 4 Cyl) suburban driving. Cars aren't meant to feel boggy, and the tip-in point is changed quite a bit when the A/C compressor is running. The idle of a car engine is kind of like a human heartbeat: You can tell what shape it's in just by listening. It normally idles around 800 or 900 rpms, but lately it will slow down to 400 or 500, then burst up to 1100 and repeat the process. Others consider cams in the size range that Vile posted above as having a mild lope. but as soon as i turn the ac on it idles rough or shakeswhat can be causeing this?its a 98 mazda 626. 2 Hesitation & Stumble. The elves have been busy in the Epic Stock Media sound effects workshop this holiday season. Wanted to know how many oxygen sensors there are and where they are located. "check engine soon " light on. 2012 Suburban Automobile pdf manual download. 2014 Sierra rough idle. How to Determine Why a Car Stalls at Intersections. However, once it is in 'drive' and we are stopped at lights etc, the idle is very rough and shutters/shakes/vibrates the whole car and the revs needle goes up and down. Top It could certainly make your idle rough or at least add to it. Problem solved! The key was to finally locate the source of OBDII code PO 0171, left bank lean, which I realize was not part of my original question. i have no trouble codes or check engine light. "check engine soon " light on. This idle speed also depends on the accessories that are currently running as a car's idle control system will automatically raise the idle in order to provide power for auxiliaries such as air conditioning and power steering. ↳ Chevy Suburban ↳ Chevy Trailblazer. I can say your car isn’t likely to suffer a catastrophic failure because of this. Idle sucks now. Rough idling is a common problem, of which the exact cause can be difficult to diagnose, as several factors may come into play. Ultimate Endurance and Power. We offer vehicle-specific IAC valves designed with your make and model in mind, whether you're looking for an idle air control valve for Nissan Altima or a Ford Focus idle air valve. The Suburban Cowgirl in real life is a tax preparer and the past month has been spent cranking out tax returns for the clients who requested extension for the 2011 tax return. I took it to the dealer and the took the carb off cleaned it and still same problem. Accord shakes when idle with AC on, Honda and Acura, 1 replies Car shakes a bit when A/C is turned on, Automotive, 3 replies 02 Elantra shakes at low speed (15-30 mph), Hyundai and Kia, 10 replies front end shakes, Automotive, 13 replies Test drove a 2000 S-10 and it shudders and shakes, Automotive, 15 replies. While there are a variety of reasons your Chevrolet Tahoe has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. Chevrolet Cruze Owner Manual - 2012 Black plate (4,1) iv Introduction Using this Manual To quickly locate information about the vehicle, use the Index in the back of the manual. Cleaning the throttle plate and throttle plate bore on the 4. The elves have been busy in the Epic Stock Media sound effects workshop this holiday season. After cleaning the IACV the idle is a little higher and doesn't miss as much while its idling while warm. No engine light on, changed fuel filter and it got alittle better it would idle ok but when useing throddle have to pump to keep up rpm but would hold about 3500rpm steady for 5-6 seconds before having to pump pedal, I have owned my suburban for 11 years with no problem any thoughts on problem. This topic contains 0 replies, has 1 voice, and was last updated by ace1093 1 year ago. Where Can I Buy the Parts/Gaskets I Need?. Dealer confirms it exists but offers no solution, I am taking them the car the third time about it today- anyone else run into this, or got a fix for it?:confused:. 2004 GMC Envoy Rough Idle. The Chevrolet Suburban has always been a very capable sport utility vehicle and big on practicality for month-long excursions or weekend wipeouts. Rough idle, stabilitrak light on, flashing check engine, rough shifting, and a loud tick coming from the driver side top of engine. It has the 4 cyl engine with automatic transmission. What are the common causes of code P0507 ? Depending on year, make, and model, DTC P0507 may have number of causes. Although a rebuilt engine had been installed a year before, and all of the wiring and vacuum hoses looked as if they were in factory condition, I took nothing for granted. Get reliability information for the 2012 Kia Sorento from Consumer Reports, which combines extensive survey data and expert technical knowledge. Idle is rough and low power (for a Q that is). White smoke and/or coolant odor may come from the exhaust for an extended period of time at cold start as well. Set timing with light after disconnecting wire at dash and again timed to 0. Anyone else deal with this before. My 2007 Camry CE idle rough in drive with a brakes on. I only use eco mode on the highway once I've reached cruising speed; I've noticed NO discernible difference in mileage with eco on or off for suburban (daily) driving. I tried to adjust the idle to around 450 RPM with the IACV unplugged (like we are supposed to set our idle) and I cannot get the idle down past around 1300 RPM no matter which way I turn the screw. 4-L 4 Cyl) suburban driving. I have read nearly every thread on tbi surging idle, code 44's (lean o2), and everything in between. Different owners seem to describe this problem using a variety of expressions. During driving everything is fine. for the last month and a half I have experienced rough idle. At engine-light-help. Pay attention to low idle or stalling. So the past couple months I've noticed my truck has a really rough idle in the mornings when it is cold out, to the point where it has even died before. Research, compare and save listings, or contact sellers directly from 150 Suburban models in Denver. They are comparatively easy to clean, but fairly expensive. My wife's 2002 Suburban was running pretty rough (vibration and knocking) today after cold start. Late 2012 would do it once in awhile and in 2013 was worse. Your car should continuously stay at RPM of 500-1000. This may be a sign of a failing idle air control valve. Rough start - cranks several times and fires everytime, but I have to bump the throttle to make it stop coughing immediately after starting up. After a couple weeks I noticed that at idle the engine would stumble and my rpms would drop slightly. It'll run at higher rpm, but doesn't want to idle. One time, it did completely misfire and limped back to my shop. i turned around and went back home to check for codes came up with none. com (for anything), use this link to support OBD-Codes. Chevrolet Suburban 2007-2012 Chevrolet Tahoe 2007-2013 GMC Yukon 2007-2013 Chevrolet Avalanche 2007-2013 This listing is for one brand-new Vacuum Formed & Molded Dash Cap. " I am more terrified of a suburban mom on her cell phone with 3 kids in the back of the SUV, than an enthusiast who had undertaken. ' To answer your question, rough idle in eco mode is a known issue with this engine and manufacturer (not all owners report this problem, mind you). Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. What are some of the symptoms of the code? Symptoms of a P050D engine code may include:. It may also Run rough when warm, slight knock, no codes setting. Before the motor was pulled it would stall when put into gear every once in a while, never threw codes, ran perfect other than the stalling. I took it to the Chevy dealer I used to go to and they gave me the runaround, and told me the rough idle was normal for that vehicle. Smooth at highway speeds. The snap ring that retains the driveshaft inside the injection pump may be bent. Find your perfect car with Edmunds expert reviews, car comparisons, and pricing tools. A code P050D should be addressed at your earliest convenience and considered severe. 2008 Suburban that has had a rough idle since 15k miles, now has 48. Driving near my home in suburban Boston—not exactly Tea Party territory—I saw a car sporting a Celtic and much of that money is sitting idle today. The idle air intake ensures your Silverado maintains a consistent idle, even when it powers vehicle functions. Chevrolet/GMC: after cold starting engine and placing in gear, would have a rough idle and/lack of power, momentarily before startup a few minutes later. models 2009-2013 express, silverado, suburban, savana, sierra. I bought my Tahoe with 77,000 miles on it. The Hz and Mg readings should be documented using the Z95 rough/harsh/stiff ride / vibration chart below. It was even lower when I bought it, sometimes as low as 300 rpm. 2012 cruze, 1. 2011 Chevy suburban, rough idle when car in gear at 500 rpm, changed plugs, wires, new air filter cleaned throttle body - Answered by a verified Chevy Mechanic. 9 seemed to idle horribly (and would rip the shifter out of your hand on a 1-2 shift) until I replaced them. For you GM owners, I've had a 95 Saturn SL, and I currently drive a 95 Chevy Blazer. Note: An additive can sometimes, however, cause a rough idle problem. 150k miles on the truck. Check spark on all cyl. - Answered by a verified Chevy Mechanic. A normal healthy idle air control valve will provide smooth idling in your vehicle. Automatic transmission. Chevrolet 2003 Suburban - On 3-8-14 at about 10:00 AM I was less than a mile from home when I was approaching a two way stop sign traveling at about. it runs fine when i first start it, but soon idles low/rough, but only in gear. Learn more about the 2012 Chevrolet Suburban 1500. Your car should continuously stay at RPM of 500-1000. Can't find the right GMC Idle Control Valve? AutoPartsWarehouse has the largest online selection of parts in the market at affordable rates. models 2009-2013 express, silverado, suburban, savana, sierra. New Motorbike One Piece Motorcycle Genuine Cowhide Leather Racing Suit Ce Armou For Sale Online. I've heard people (not me) refer to the Comp XE268 cam as having a fairly smooth idle. Rough Idling. This can make the engine idle rough, misfire and/or stall. I also tried some techron in case it was the injector. ' To answer your question, rough idle in eco mode is a known issue with this engine and manufacturer (not all owners report this problem, mind you). It usually happens after backing out of parking areas when vehical returns to idle while shifting from reverse to drive. it's. The flickering is a result of voltage surges. Both of these have the electric-only EGR valve. The snap ring that retains the driveshaft inside the injection pump may be bent. Diesel Ops is committed to providing our customers an unparalleled shopping experience. If you are having rough idle, or poor performance, just unplug the electrical connector. And the rough idle only happened those two times, after it stalled it hasn't done it since. Rough idling is a common problem, of which the exact cause can be difficult to diagnose, as several factors may come into play. chevy forum at Car Dealer Forums; Truck runs great, but recently when the engine comes off the enriching circuit. It may also Run rough when warm, slight knock, no codes setting. I WAS having the rough idle issue until last week when they put a new ECU in the car. Chevrolet/gmc: after cold starting engine and placing in gear, would have a rough idle and/lack of power, momentarily before startup a few minutes later. html suburban with 6. I was able to turn the idle adjustment screw on the throttle body. it also seems the longer i sit the worst it gets. The engine struggles to keep it above 7-800 RPM. The stepper motor drives a valve pintle which protrudes into a passage that bypasses the throttle plates. Idling and driveability problems can be caused by a variety of issues. That's why I "used to " go to them. The check engine light is on and the car's idle is a little rough. put a brand new filter on thinking it could be that, no changes, pulled the bleeder valve screw and it was totally destroyed so i replaced that and still nothing changed. 95% of them will have a smooth idle after cleaning the throttle body and is not the result of a sticking mechanical feature. A clogged fuel filter may cause rough running however you would assume the engine would get progressively rougher over time. This page covers fuel-injected cars. Each of these models is available with a choice of rear- or 4-wheel drive. This second TSB came up when I selcted your truck and engine size but it should be confirmed that it applies to your engine,I am not 100% sure. 6 Limited 90,000 mi Mom- 2015 Impreza 5MT. If I listen to each exhaust, one seems like it is rougher. Ultimate Endurance and Power. When it comes to your Chevrolet R2500 Suburban, you want parts and products from only trusted brands. also hiccup when the throttle suddenly changes position. Location: Subang, Java – Merak, Java, Indonesia Distance: 314km The ride into Jakarta was memorable for all the wrong reasons. My car has an automatic transmission. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Discuss 1990 TBI 5. Post by Yoshi » Wed Aug 31, 2011. Since day one the truck has had a rough idle and the dealer said numerous times there was no issues. Car seems to idle rough sometimes. Blue Streak Electronics recommends to warm the engine after the idle relearn procedure, without use of the air conditioner. i have a 04 chevy silverado with the 5. It will idle up a little, and then drag down so low that I think it is about to die. Honestly? I'm always a fan of the rough mix / demo stuff more often than not, and this one is far more fun for me to listen to than the final product. A fuel filter restriction is not the likely cause of an engine running rough when idling. It vibrates/shakes at the stop light but when im driving again it goes away. Stalling when it's cold can also be caused by a fuel leak problem inside the carb. I went to auto zone to see if it was a misfire but the scanner returned P0014 which could have been multiple things but the guy at the counter said most common is the cam position sensor. Find chevy leveling for sale today on the internet. Wanted to know how many oxygen sensors there are and where they are located. New fuel filter didn't help. I can say your car isn’t likely to suffer a catastrophic failure because of this. Average failure mileage is 93,500 miles. ↳ Chevy Suburban ↳ Chevy Trailblazer. They did the sensor rebuild kit repair. Although my opinion (supported by others too) is that the idle speed needs to be re-learned, the system should still be capable of maintaining an idle speed. The idle is rough while it is sitting still, not just isolated to after start-up. "check engine soon " light on. 2002 Ford Ranger runs rough at idle but no OBS code? My 2002 Ranger runs rough at idle. Can't find the right GMC Idle Control Valve? AutoPartsWarehouse has the largest online selection of parts in the market at affordable rates. Thanks for the quick reply. You're right to assume that something else going on. GM has determined that he rough running engine is caused by cracked or oil fouled spark plugs, usually on cylinders #1 and #7. It'll run at higher rpm, but doesn't want to idle. My EGR keeps getting clogged after 200 miles of continuous driving. sic7cadi, Feb 26, 2011. Home › Forum › GMC › 2015 Yukon Denali rough idle issue and general frustration. To inquire about republishing archival content, please contact The YGS Group: [email protected] Chevy Suburban 2012, Iridium TT™ Spark Plug by Denso®. but as soon as i turn the ac on it idles rough or shakeswhat can be causeing this?its a 98 mazda 626. It will stay at about 1200 rpm when I. Idling car engines may surge for several reasons. Exhaust has a very strong smell to it. The best part is, our Chevrolet R2500 Suburban Idle Air Parts products start from as little as $49. Order your Idle Air Control Valve - 1AISC00030 today at 1AAuto. The idle is rough while it is sitting still, not just isolated to after start-up. I think the first TSB stands a better chance to at least be a possible cause. Order Idle Air Control Valve/Motor for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. No engine light on, changed fuel filter and it got alittle better it would idle ok but when useing throddle have to pump to keep up rpm but would hold about 3500rpm steady for 5-6 seconds before having to pump pedal, I have owned my suburban for 11 years with no problem any thoughts on problem. Car Care: Chris Garman explains why your car engine might begin to surge while idling. 19 problems related to car stall have been reported for the 2012 Chevrolet Equinox. Find Chevrolet Suburban recalls information, reported by the NHTSA, and we will help you find a nearby service center where you can get your car fixed. I only use eco mode on the highway once I've reached cruising speed; I've noticed NO discernible difference in mileage with eco on or off for suburban (daily) driving. Your idle air control valve is located. The AAC valve increases the engine idle speed until the engine warms up and then the IAC is supposed to take over, provided it's clean, working properly and the manual idle speed adjustment is set low enough to allow the IAC to control the engine idle speed (should be about 675 rpms with the engine fully warmed up, the transmission in D and. There may be lots of reasons a car stalls at intersections, including low automatic transmission fluid levels, moisture in your gas, broken sensors, or issues with the EGR valve. The most common symptom of the dirty throttle body is rough idling. When you first start in the morning, it will run at the elevated RPM, but when it starts to drop back down to the normal idle, it will start to run rough and the RPM can drop to about 300 RPM and then jump back up to 1000 RPM. 5 turbo diesel motor. What is making my car idle rough when i turn on the air condition?my car idles good when its not on. if the concern is worse than a like vehicle, technician should f Bulletin Number: PI0564H Bulletin Date: 08-25-2015. Sometimes, the computer can tell you what is wrong [instructions]. So far as the rough idle goes, (I cant say about the speedo) I'm going to hazard a guess you have a problem with the Idle Air Control Valve or some call it Idle Air Motor. Shop Chevrolet Suburban vehicles for sale in Denver, CO at Cars. How your engine idles is a good indicator of its overall health; addressing the problem sooner rather than later and checking all potential causes is important. but as soon as i turn the ac on it idles rough or shakeswhat can be causeing this?its a 98 mazda 626. if the concern is worse than a like vehicle, technician should f Bulletin Number: PI0564H Bulletin Date: 08-25-2015. I have an Peugeot 206 / year 2000 / 1. Rough idle / traction control - stabilitrak light are on stay on and also says service both and also has a hard shift out of 1st. 2000 Outback rough idle, trouble starting after fueling. Suburban: Rough Idle At Cold Start 2 Answers. Again, start the engine and compare how it is running at a stop to how it normally runs. Anyone else deal with this before. When it shakes the check engine light will flash rapidly then stop. WRONG!!!!! Rough Idle. It's controlled by the computer. 5 Cummins 5. My 2012 shakes as did my 1997 5. 3L's naturally idle a little rough, everyone ive been in hasnt been butter smooth. Check engine light and trouble code P0300 misfire. The normal idle is about 600 RPM. Thought I had bad gas, never did it before just in morning on cold thirty degree nights, morning start ups, engine would start, high idle at 1000 rpm, then idle down to 700 or 600. Read expert reviews from the sources you trust and articles from around the web on the 2012 Chevrolet Silverado 1500. I have a 2003 Ford Explorer that hasn't been idling well lately. I’ve had a rough idle problem with the Chevy 350 engine in the van and haven’t been able to solve the problem for over a year now. Although my opinion (supported by others too) is that the idle speed needs to be re-learned, the system should still be capable of maintaining an idle speed. The standard 5. Even before that the A/C had a system (analog) to idle the car up when the compressor went on. 5's that are complaining about a little smoke at start up!. My truck just recently started to idle rough with my A/C or defrost blower on. My 1999 454 suburban idles poorly, it nearly dies sometimes but recovers. 3L's naturally idle a little rough, everyone ive been in hasnt been butter smooth. It's controlled by the computer. The throttle plate's idle-stop screw's factory adjustment has been altered so that the engine could be idled up and mask a miss/misfire and/or rough idle. adjustable track available for purchase today on the internet. Could definitely be a sign of a failing compressor. iATN Review Newsletter. After messing with the connection, the truck’s power has mostly been restored. If you let off the gas it dies. I have a 2003 Ford Explorer that hasn't been idling well lately. and that they could do something to fix a rough idle. Driving near my home in suburban Boston—not exactly Tea Party territory—I saw a car sporting a Celtic and much of that money is sitting idle today. An EGR valve that fails to close at idle is another common cause of stalling. It acted just like it ran out of gas, but still had half a tank. The normal idle is about 600 RPM. I had a similar issue but my idle did not make it up to 4k. The Suburban Cowgirl in real life is a tax preparer and the past month has been spent cranking out tax returns for the clients who requested extension for the 2011 tax return. Especially when I am at a stop sign or stop light and depressing the brake. com! 2015 tahoe woes P050D cold start / rough idle Also including Oldsmobile, Geo, Hummer, and Saturn (North American brands). Here are some of the most common. The Suburban is essentially the Tahoe's longer-wheelbase bigger brother. The mix is loud, unbalanced, and awesome. 5 Turbo Diesel Smoke & Rough Start By Diesel Performance Truck on April 1, 2011 in For all of you with 6. I have a 2012 Crew Cab with the 5. 24 new and used 35 Foot 5th Wheel Camper cars for sale at smartmotorguide. The motor is out of an 88 1 ton pickup and is in a 89 1/2 ton suburban. Let me use an idle complaint that had me on the ropes as an example. 5's that are complaining about a little smoke at start up!. Read more General Motors reviews to learn about other models. 1) Start the engine and let it idle in park for 3 minutes. I took it to the Chevy dealer I used to go to and they gave me the runaround, and told me the rough idle was normal for that vehicle. Order Now!. I have a 2011 Concours 14 ABS with about 4500 miles. When it starts idles really rough, and when i put it in gear it dies unless its completely warmed up, check engine light and vtm-4 are on and blinking it says all my cylinders are misfiring, also its smells like antifreeze pretty bad, I need help. Now the engine run rough when hot. The LTZ gets a standard heated steering wheel. Even when hot, sitting in drive, it runs rough, although not bad enough to effect acceleration. 2015-2018 Chevrolet Suburban 2015-2018 Chevrolet Tahoe Condition: A vehicle may have a concern of DTC P050D setting along with a P0300 after a cold startup. 140000 miles. My 2002 Chevy Suburban 2500 idles very rough when starting for the first time in the morning. P0300 Diagnostic Trouble Code Discussion for October 2012 Multiple Misfire Detected * Note: This is a professional automotive technician's resource. Initial thought was a solenoid issue, after much labor it was determined the ECU wasn't sending the signal for the flaps to open. See the 2012 Chevrolet Suburban 1500 price range, expert review, consumer reviews, safety ratings, and listings near you. 4mm Iridium and 0. When I had the top-end rebuilt in October, there was stil a rough-idle condition that the shop could not track down. 0 Vortec with a PO300 random misfire/rough idle issue. Shop Adjustable Track available here!. I've seen this out of all of the newer 5. Occasional white or very light blue smoke only on start up. i have a 04 chevy silverado with the 5. With a condition such as this, it is normal for it to run rougher when electrical components are tuned on and it is normal for a car to run rough when the idle is to low. This increases the TP sensor's signal to the PCM. Offered up today for your internet leeching consumption is a collection of (studio) outtakes from Samhain's "Magnum Opus" album, November Coming Fire. Learn more about the 2012 Chevrolet Suburban 1500. For several months I had tried to figure out why my truck was idling so rough. On cars with carburetors (phased out through the 1980s), the most common problems include the distributor cap and rotor. 3l rough idle/stalling. For instance, a misfire under a heavy engine load would suggest a fuel filter problem. 00 they told me everything but how to fix it. Jul 29 2012, 3:09am. Read expert reviews from the sources you trust and articles from around the web on the 2012 Chevrolet Silverado 1500. It normally idles around 800 or 900 rpms, but lately it will slow down to 400 or 500, then burst up to 1100 and repeat the process. This page covers fuel-injected cars. JUNE 2015-- General Motors LLC (GM) is recalling certain model year 2011-2012 Chevrolet Malibu vehicles manufactured April 8, 2010, to October 11, 2012. Smooth at highway speeds. My car has an automatic transmission. It is because rough idle when warm can either be caused by one faulty component or through series of problems. A MAF problem should (but does not always) set a. When it started, I would turn the key and the car would almost, but not quite, start, and simply turning it off and t…. After the first few seconds, its idles rough. i have a 04 chevy silverado with the 5. I've read most threads on the subject (much appreciation!), and will try some more solutions today. The mix is loud, unbalanced, and awesome. P0507 CHEVROLET Meaning The Idle Air Control (IAC) valve is a Powertrain Control Module controlled stepper motor located on the throttle body. The Hz and Mg readings should be documented using the Z95 rough/harsh/stiff ride / vibration chart below. Ultimate Endurance and Power. The Tahoe and Suburban come into 2012 with only a few changes. 2012 (Edited) 1999 GMC Suburban k1500, 5. Your idle air control valve is located. An EGR valve that fails to close at idle is another common cause of stalling. We purchased it from a Chevy dealership back in 2002. Just had my CEL come on after my 50K service. Aside from high idle issues, low idle and even sporadic stalling can both be attributed to a bad idle control valve. 95% of them will have a smooth idle after cleaning the throttle body and is not the result of a sticking mechanical feature. At start up in the cold and before it's fully warmed up, the idle is high (~1200 rpms) and stays there (it doesn't go up, down, up, down, like some people experience). If you shop at Amazon. I also tried some techron in case it was the injector. " If turning the ignition on causes IAC to engage plunger fully forward, then there is no purpose in doing what he is suggesting. Nice to also hear that the same "Fix" for the rough idle is still just bumping the idle up 100rpm or so. A clogged cat will not cause the symptoms the OP is having, instead it will give poor acceleration etc. Find Chevrolet Suburban recalls information, reported by the NHTSA, and we will help you find a nearby service center where you can get your car fixed. Read more General Motors reviews to learn about other models. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. There is an IAC (Idle Air Control) solenoid that moves a plunger that controls the idle speed. A few days ago I figured out that the EGR was stuck open so I disabled it in the tune and blocked it off by putting a piece of aluminum can between 2 gaskets and reinstalling the valve. It stalled out in the middle of u-turns. The roughness is more pronounced as the outside temperature gets colder. The vehicle had a rough idle when stopped and in drive, such as being stopped at a stop sign or red light. Hi everyone. I've got an 84 GMC K1500 with the 6.