Chevy cobalt throttle body problem. I was wondering how to fix this problem.

Chevy cobalt throttle body problem 2. Now that you've cleaned the throttle body and I assume the oil at the bottom of the intake you should be good. Aug 26, 2025 · Dealing with a rough idle, acceleration problems, or bad fuel economy? Learn the common symptoms of a bad throttle body and repair costs Aug 20, 2024 · If you’ve recently cleaned or replaced the throttle body on your Chevrolet vehicle, you may need to perform a throttle relearn procedure for the engine control module (ECM) to relearn the throttle position sensor settings. 2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the driveway, or at any point when the RPM's fall quickly to idle speed I have an irratic Nov 11, 2019 · If your Chevy Silverado has a faulty throttle body, it can cause it to run terribly. This isn’t an issue on older models because the throttle body was connected directly to the accelerator with the help of a cable and a mechanical link. 2L Chevy Cobalt, is a very critical part of the engine management system. The new air filter fixed the problem for about 20 minutes, as had cleaning the throttle body - even got the engine light to go off - but then it promptly returned and began running bad again. Learn about this problem, why it occurs, and how to fix it. Since i didn't really need to drive my Cobalt and low on fund-age I put off repair for a few weeks. I stopped using the AC and it fixed that problem. code p0690 came up but now has disappeared but still have rpm problem The Chevrolet throttle position sensor has a high failure rate on certain year, makes and models. My 2007 Cobalt 2. I've attempted to relearn the throttle body. so i put it on. After reading multiple forums, I decided to try cleaning the throttle body. The throttle position sensor is tasked with tracking the position of the throttle. Nov 28, 2024 · Your car’s throttle body is a small but essential piece of the vehicle’s air intake system, and it’s one of the most critical components of your vehicle to maintain. May 2, 2011 · ok so i have a 2007 chevy cobalt ls 5 speed. Feb 22, 2013 · A: I suspect the high idle speed after removing and cleaning the throttle body is due to a vacuum leak. The PCM is responsible for logging this code when the input doesn’t mean normal parameters. If you let off of the gas coming to a stoplight and it stalls for a second or two and recovers itself, it very well could be a dirty throttle body that is causing the problem. Aug 4, 2019 · I recently acquired an 07 Cobalt SS SC and I have tested a plethora of things, cleaned throttle body etc. Yesterday it happened again 2009 Cobalt 2. 2L. Also if you damaged any of the internals to this servo, or carried any gunk onto the electrical connections inside, this to can cause you problems. 2 LGrab these on Amazon with free 2 day shipping when you join Prime:Ratchet & Socket Sethttps://amzn. When ever I get it up to speed it Jun 29, 2020 · Throttle Body Replacement on 2007 Chevrolet Cobalt 2. The solution involved replacing and programming the pedal The throttle body system helps your engine accelerate smoothly. It had some grunge so I thought the problem fixed. Hey everyone. Your Silverado’s throttle body controls the amount of air that enters the engine. This should all be normal when your throttle body get's dirty. Nov 11, 2019 · If your Chevy Cobalt has a faulty throttle body, it can cause it to run terribly. Nov 23, 2014 · cleaned throttle body with throttle body cleaner, now cars rpm up to 1500 on park. Feb 25, 2017 · As well as advice in the same thread to make sure the key is out of the ignition and battery is disconnected. I looked this problem up and many people said it was the throttle body. I just removed the throttle body to clean it, and after reattaching it, the car now idles too high. They told me it needed a new throttle body and quoted me $1200 parts and labor. Jan 15, 2021 · My Chevrolet Cobalt 2010 2. Testing The PCM's Grounds Basics. And if this doesn’t fix it what should I do next. A vehicle that had a heavily coked throttle body that has been cleaned or replaced may take several drive cycles to learn out the coking. Learn the symptoms of a bad throttle position sensor and how to replace it. I was to the point of taking it somewhere and letting someone reflash her computer. The sensor sits on the throttle body in most configurations. We would like to show you a description here but the site won’t allow us. It is the 2006 cobalt ss 2. 06 Cobalt LT 2. 9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, FE5 Sep 10, 2019 · Dirty Throttle Body A dirty throttle body can lead to stalling in your Cobalt. Cleaning the throttle body shouldn’t cause problems—but if it’s done incorrectly, it can result in electrical problems and high idling. The car performs well at highway speeds, but when I come to a stop, it idles at around 1200 RPMs. 2 LT has been shaking and stalling when in idle. Here are some of the most typical problems that can make your Cobalt’s reduced engine power warning come on: Throttle Body This is one of the most common reasons the reduced engine power light comes on. After putting it back on and everything started up it idles at about 2300 to 2500 rpm. Is your engine stalling or idling rough? Learn how to reset and recalibrate your throttle body with clear instructions, troubleshooting tips, and essential tools for the job. How Does The GM Electronic Throttle Body Work? Symptoms Of Electronic Throttle Control System Troubles. If you have access to GM SI2000, the gm service site, i read the throttle relearn procedure, which is idle for 3 minutes, key off for 1 minute, and repeat 3 times. Customer: I changed the spark plugs and cleaned the throttle body on my 2006 Chevy Cobalt LS 2. The lower portion of the throttle valve is heated by engine coolant to prevent icing of the throttle plate. I want to buy and replace the Jan 7, 2023 · What Does the P2135 Code Mean? The P2135 code indicates that the voltage reading between the accelerator pedal position sensor and the throttle body position sensor doesn’t match. When it fails, you're gonna' see one or more of the following symptoms: Jan 27, 2023 · After clean throttle body with throttle body cleaner, engine does not idle properly? WARREN ZIMMERMAN MEMBER 2008 CHEVROLET COBALT 2. Customer: I have a 2007 Chevrolet Cobalt. Now after the work I performed the car idles very high, somewhere between 1700 and 2000 rpms. Jan 9, 2019 · If your 2005-2006 2. Dec 14, 2021 · Chevy Cobalt – (miker / Shutterstock) The most common causes for slow acceleration in Chevy Cobalt are clogged air filter, dirty mass air flow sensor (MAF), clogged fuel filter, fuel pump malfunction, faulty oxygen sensor, dirty throttle body, worn spark plugs and clogged catalytic converter. However, I've heard you can mess up the computer doing so and you'll have to bring it to the dealership to get the comp reset. Deposits Blocking The Throttle Plate. Engine went to reduced power. Review diagnostic procedures of bad throttle position sensors. 2L Chevy Cobalt's electronic throttle body passed TEST 1 and TEST 2, then you can conclude that the electronic throttle body is OK and not defective. I got some seafoam intake cleaner from Auto Zone and used that to clean both the MAF (sprayed it to heck) AND throttle body. I replaced the spark plugs, replaced both air intake and cabin air filters and cleaned the intake system including scrubbing the throttle body. Cleaning the throttle body with a specialized cleaner can restore smooth operation. But a CEL never came on. TEST 1: Voltage Drop Testing The PCM Grounds. Also run a pipe cleaner through the spigot at the valve cover PCV to make sure it is May 2, 2017 · Hello friends, I've been having 2 issues from time to time. Common symptoms of a bad throttle body include dirt and grime, the check engine light, and an erratic idle. The original problem was low idling and it would stall when I stopped. In this article, we’ll look at some of the most common causes of a rough idle in the Cobalt and how to fix the problem. Feb 28, 2011 · My hubby cleaned out and later replaced my throttle body (she was throwing the throttle position codes), cleaned my MAF sensor (still stalling after new throttle body), replaced my fuel filter (VERY early on when this problem first startedhubby thought it was just bad gas), AND replaced all 4 spark plugs (threw misfire codes on 2 & 4) trying Apr 16, 2015 · With the throttle body exposed I started to clean the butterfly and the inside with throttle body cleaning fluid. Electronic Throttle Body Connector Problems. So I cleaned the throttle body but it is way too dirty to clean up. The vehicle has 200,000 miles and a 2. The DTC Nov 21, 2008 · cleaned throttle body with throttle body cleaner, now cars rpm up to 1500 on park. I have a standard car and was wondering how would I go about the throttle relearn procedure. Thread: Problems After Cleaning Throttle Body Question: I assume the process is the same for a new throttle body as removing and cleaning an exiting throttle body? Nov 10, 2025 · Discover the key symptoms of a bad throttle body and the replacement cost to restore smooth engine performance. Jan 9, 2019 · The electronic throttle body, on your 2005-2006 2. It is not only important for power delivery in your Cobalt, but also for the lowest possible pollutant emissions. My car idles around 1500 rpm. The conversation centers around a 2008 Chevy Cobalt experiencing a check engine light and reduced engine power, suspected to be due to throttle body issues. Here’s a great YouTube video from EricTheCarGuy. on how to clean a throttle body. code p0690 came up but now has disappeared but still have rpm problem Jun 21, 2015 · Learn how to do a GM throttle body relearn to establish a new baseline idle after replacing or disconnecting the throttle body. It covers everything you need to know about when and how to perform a throttle relearn, including a list of GM models that require it If there’s a jerk or hesitation, inspect the throttle body, throttle position sensor, and wiring connections for faults. Throttle body problems in the 2009 Cobalt typically involve carbon buildup causing sticking or erratic idle. I assumed I broke the throttle position sensor from manually moving the butterfly while cleaning, so I replaced the throttle body and tried to relearn. Aug 18, 2024 · The Complete Guide to GM Throttle Body Relearn Procedures The Complete Guide to GM Throttle Body Relearn Procedures is a comprehensive blog that provides step-by-step instructions and troubleshooting tips for performing a throttle relearn on GM vehicles. to Jan 26, 2023 · After I did this and put it back on the car. Today I cleaned my throttle body. I've recently been having some problems with my 2007 Cobalt SS. i also cleaned the top of my throttle body, i didnt take it off the intake manifold but i did spray a Oct 8, 2024 · I took the Cobalt to my local Chevy dealer (I purchased from a Kia Dealership) and asked them to diagnose the issue and give it an inspection. Come join the discussion about performance, modifications, parts, classifieds, troubleshooting, maintenance, and more! Jun 6, 2013 · I am 99. The 2006 Chevrolet Cobalt has 92 NHTSA complaints for the engine at 82,521 miles average. 2L 4 CYL 2WD AUTOMATIC 100,400 MILES Mar 1, 2011 · We figured out that when you force open the throttle blade, the TAC module relearns the open throttle body, and defaults to that setting. What would be a cause for the this? The mass air flow sensor is part of the engine’s intake system and is located between the air filter and the throttle body. (Page 1 of 5) Feb 21, 2014 · I researched a lot and I cleaned the throttle body, replaced the air filter, about a month apart from eachother. 2L Auto with 117,000 I want to clean the throttle body on my Cobalt, but I've seen various threads about someone cleaning the throttle body and needed to go through a relearn process and various headaches like the car stalling when stopping/sitting at a light. You control the throttle body position with the gas pedal. I was wondering how to fix this problem. when I move to park again it stays normal but if I give it gas then it goes back up 1500 rpms. I have 2006 Chevy cobalt that idles rough and often dies when it comes to a stop. 9% sure that the throttle position sensor was used to having all the buildup of crud thus opening the throttle body's intake to allow more air. At one point I wrapped a small piece of rag around the head of the toothbrush to clean the side walls. 2L has been idling a little high lately and I wanted to clean the throttle body to see if it helps. When I hit the accelerator my car will chug and not Jan 7, 2023 · What Does the P0122 Code Mean? The P0122 trouble code signifies that the throttle position sensor or switch A circuit has a lower input than expected. I moved the butterfly by hand and used a saturated rag and an old tooth brush. Jul 18, 2024 · I have almost the exact same problem, replaced plugs and cleaned throttle body and then everything went south from there. move shifter to drive and goes to normal rpms. But you could still check at next oil change to make sure. Jan 12, 2016 · Common signs include dirt, grime, and carbon deposits on the inside of the housing, electrical problems, vacuum leaks, and a very poor or high idle. Are you sure any and all vacuum lines that you may have removed, disconnected or disturbed Jun 30, 2012 · Bump lol IDK if you already took care of the problem but if anyone else gets this code they may want to try: Cleaning the Throttle Body Replace the Mass Air Flow (MAF) Sensor Replace Throttle Bod Check Ground G401 Aug 10, 2012 · I spent the day today doing some tune ups on the car. 4l Aug 30, 2019 · If you own a Chevy Cobalt and it’s idling rough, you may be feeling frustrated. This past weekend I cleaned the throttle body out **** and span. My car only has issues at idle for the most part, but also does have a pretty bad mpg that could be in relation to the straight pipe as well though hah. I bought a new AC Delco pedal assy and swapped out old for Jan 15, 2015 · 2006 Cobalt LT 2. So the engine thinks it is running normal. My check engine illuminated and after scanning for codes, it should a code for faulty Throttle Pedal Position sensor. Poor idle after a GM Throttle Body replacement install? We show you how to perform the PCM relearn procedure so your vehicle runs normally. Aug 8, 2012 · Anytime the throttle body airflow rate changes, for example due to cleaning or replacing, the values must be relearned. Jun 14, 2016 · My 2010 Cobalt has the engine light on and it will die while idling. Now that it's clean this is a problem. What happens when MAF sensor malfunctions in Chevy Cobalt? Aug 27, 2019 · A good code scanner is really cheap and can make the process a whole lot smoother. 2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the driveway Nov 23, 2010 · Circuit Descriptions Of The GM Electronic Throttle Body. Your Cobalt’s throttle body controls the amount of air that enters the engine. 2 Ecotec engine. Mar 20, 2011 · Just cleaned the throttle body on the wife's car (2005 Cobalt 5spd) had the same issues with the high idle that I have read it seems a dozen times. A similar case with a 2006 Chevy Malibu revealed that the problem was actually the accelerator pedal module, not the throttle body, which caused reduced power and rough idling. . May 7, 2018 · Hey everyone. Aug 4, 2011 · 1986 Chevrolet Camaro IROC-Z - Wrecked/Sold 1998 Chevrolet Cavalier - Wrecked/Donated 2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2. I Oct 14, 2025 · Chevrolet Cobalt Chevrolet Cobalt engine power reduced due to throttle body and pedal position sensor issues - 2 reports. Can anyone with experience give me any tips to avoid the dealership? Thanks! Dec 16, 2009 · UPDATED SEE LAST POST 06 Cobalt Rough Idle/Stall when Stopping or Quick Deceleration Hello All, Here is the problem I have. Dec 16, 2009 · Hello All, Here is the problem I have. Dec 31, 2016 · A forum community dedicated to Chevy Cobalt owners and enthusiasts. Is there anything else the mechanic should be aware of May 1, 2024 · If your throttle body was very dirty & causing a performance problem, then it a could be resolved by triggering a relearn. The throttle position sensor a/b and throttle actuator are built in to the throttle body. Jan 13, 2013 · The white goo is a mixture of water (from condensation) and oil components. Instructions: 1) Start and idle the engine in park for 3 Aug 29, 2015 · Howdy from Texas. Changed out throttle body, ran fine for a little bite then code P0068. for my graduation project i decided to build a custom cold air intake, since i read a lot of people had completed it succesfully. How to Fix: Start by cleaning the throttle body and inspecting the wiring. It's throwing P0121, P0010, and P0446(which I believe is unrelated). I removed the throttle body and cleaned it completely but my car is still having problems. The most common cause of a rough idle is misfiring. I am getting the P0411 Secondary Air Injection System Incorrect and Engine Power Reduced. spdjgsv rcsjzg ftm qdmpgf fqcn exd ycruwr roqeln tppmrt vwtlf oqwu zgcm vcyr hsius unkax