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<h1>Chevy cobalt ground problems. Below are the most common Chevy Cobalt problems.
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Chevy cobalt ground problems I replaced the relay, added a ZZP bypass relay, and replaced the fuel pump twice. It will not read when the outside temperature is below 60 degrees Fahrenheit. The speed I'll Apr 5, 2013 · got 07 cobalt keeps giving me a P0102 code, I have changed maf sensor checked entire intake, changed air filter, changed purge solenoid, changed every fuse related to ecm, trans, and evap. Has anyone had issues with the TCM and/or had any success in running a ground wire for it? I'm having issues, rough/no shift, power steering light, etc. Apr 16, 2020 · The problem is most likely on the hot side of the wiring but it could be on the ground side also. So i am starting a collection of images to help remind me and hopfully others find, and verify good grounds in there Cobalt Under Driver's seat ground G301 & e-brake switch G306 Apr 25, 2025 · These little electric pathways are crucial for keeping your Cobalt running smoothly, and a bad ground can lead to a variety of issues, including unexpected trouble codes and performance hiccups. When I turn the key on also when trying to start the bcm relays seem to click properly if that helps. poor grounding, ECU HS buss off. second, i was looking for bad grounds, i Dec 1, 2019 · So yesterday I bought this cobalt for 200 bucks. I Nov 15, 2023 · The Body Control Module (BCM) is essential to the Chevy Cobalt’s electrical system. I'm betting this is the same problem for me. has 120k. Here Jun 30, 2012 · 05 Chevy Cobalt LS (RIP 7/13/2013:duh 99 Nissan Altima GXE (Daily) 99 Subaru Legacy (Daily) 07 Jeep Liberty Limited (No longer the tow truck for the balt :frown If you have questions and I'm not on please PM, notifications go straight to my phone 24/7. Aug 31, 2016 · 06 Cobalt LT - 126,xxx. supposed May 24, 2011 · 2006 Cobalt, purchased used with 27,000, now at 49,000. Hey guys back in town for an update video just to help deliver the facts and show Dec 26, 2012 · Every minute spent angry is a happy minute lost for ever and ever!!! :bigsmile::smilie_flagge17 rives 2016 Cocoa Buick Encore 1. the bulb itself is fine. The rear however blinks just fine. Timing chain tensioners can also fail, leading to expensive engine damage. So I installed an Autometer Electronic Oil Pressure gauge. Sep 17, 2021 · I'm having several issues. It's all the same thing. Secondary problems are poor contacts inside the multi pin connectors. 2L) will not start. I. Come join the discussion about performance, modifications, parts, classifieds, troubleshooting, maintenance, and more! Jan 29, 2015 · For about 4 years, I've had problems with my '06 Cobalt. 2 liter ecotec engine, I am having problems with the coolant temperature sensor. I'll bet a six-pack of craft beer that attention to these grounds fixes your problems. Oct 23, 2016 · They are known problems. I drove for about an hour with the fan blowing the entire time with the a/c running. Apr 25, 2025 · In this section, we will explore critical areas to focus on, ensuring your Chevy Cobalt (or any vehicle) runs smoothly and reliably. The AC in the car blows cold but doesn’t blow hard. The ECM controls and directs your entire drivetrain (unless there is a serrate transmission controller). We try with a jump pack and it doesn't change, still no attempts to crank. I've taken it in to several dealers and shops and they've never been able to figure it out. I hadn't driven it much till Saturday, when I finally got plates on it. I cut the car off for about an hour. i have traced that i have 12v at each sensor, so i assume its the ground lines causing me issues, need schmatic to trace that down. I parked the vehicle, and later attempted to start it - it had symptoms as if the battery wasn't connected or was completely dead (for example, when the ignition was turned to ACC, none of the Jul 21, 2017 · my daughters 06 just started acting up with the usual problems. I was Jul 5, 2010 · H'okay. It is sometimes referred to as the ECU or PCM. Jun 16, 2012 · The other day my Driver's side dim light started flickering while I was driving, then went out. Can I fix this problem myself without too much Jul 31, 2021 · Hey guys I thought someone might be able to help. I found a YouTube video showing how to run the ground wire. Just no turn signal. At this point I got 2 engine codes - P0106 map sensor and P0300 random misfire. Identifying Common Ground Points and Connections. . No speedo,check engine light,TC light,not shifting. My mom used it but not very much. Radio, windows, etc seem to be working normally. I have a 2008 Chevy Cobalt that I bought for my 16 year old son. All pieces are stock. Due to someone installing a aftermarket stereo, the car won't shift out of second. I unplugged TCM and the 2 other plugs below and blew out with electronic air cleaner. But the discussion sounds like not many people know much about it. On and off over the last two years of ownership, I've occasionally gotten P2128 and P2138 trouble codes, more often than not going over an extreme bump / pothole. Ground wires are important. 1. Dec 20, 2014 · Sorry for this long post, but I am trying to be as thorough as possible so you guys can give me your recommendations. My Showoff Join YC on FB Syndicate of Tuners. Later that day, I took it out on the highway, and everything seemed fine. car goes into limp mode and (usually) the code can be cleared and can get back on the road. 2L started running rough a couple of weeks ago. My question(s) is/are 1. My issue turned out being a bade brake module AND a bad fuse box. in pic 1, the ground travels with the power wire that goes from the fuse box to the starter, the other end goes to the frame behind the bumper (the black wire with the stud) Feb 5, 2020 · Problems went away immediately. Also take a close look at Ground G109 near AC compressor Jul 27, 2020 · The blower motor stopped working all the sudden. Feb 8, 2008 · 08-10 SS Turbocharged General Discussion - Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. Oct 9, 2013 · Bought for $500 Replaced: Starter,Timing Chain,Tensioner,Fuel Pump,Power Steering,Battery,Plugs & Wires,Rear Brake Kit,Tie Rods, Tires. i got the car few months ago after my mom past away :( only issue I have Feb 12, 2023 · The Chevy Cobalt was an American compact car that was produced from 2005 to 2010. I've checked the TCM fuse that's Jun 28, 2022 · Red battery light comes on. Good luck. Ignition coils often fail in some models, causing engine performance problems. I would like to try this before taking it to a mechanic for a new TSM or Shift Solenoid. I have a 2008 Cobalt. Jan 14, 2013 · All right all. I replaced Jan 31, 2013 · I understand that this is a complicated and likely rare situation with an otherwise great vehicle. R Power Steering MSG, No shift out of 1st Gear, Faulty Speedometer, etc. me/chadwilliams89Cash App - https://cash. I have replaced the sensor twice already and it continues to act up. first i'm having heater not working on either upstream or down stream, both are new sensors. This turned out being a nightmare for me and I searched all the forums and found the standard reply "probably a ground" which wasn't bad advice but did not fixed my problem. In a Chevy Cobalt, common ground points include G101 and G105, located near the ECM and PCM. You can only find the Chevy Cobalt in the used market now if you’re Sep 29, 2014 · My 2007 Chevy Cobalt LT (2. I have owned my 2005 Cobalt, auto, 105,xxx miles, for the last 5 months. The alternator converts mechanical energy from the engine to electricity that not only powers all the on-board accessories, but also charges the battery. bought a OBD II/EOBD CEN-TECH today, values for maf show up in g/s, which aint sure what that is. It will blow some on 1 and 2, and wont blow at all on 3 or 4. I noticed one day it wasn't working. If you are getting one, you need to know the model-specific issues to expect, so you can plan your maintenance schedule accordingly and prevent some of them. I looked in this Forum about this problem and it seems some people have it. I had a problem with condensation in that light housing. to/h/cr6/These are the top 5 problems with the 1st generation Chevy Cobalt, the compact coupe and sedan available in m May 9, 2024 · Photos of codes attached I recently bought a 2005 Chevy cobalt Lt and was told that he had a bad ground. Some common problems with certain years of the Chevy Cobalt include issues with the combination signal switch, which can be a serious safety concern. After some research it seems that one possible fix involves cleaning the ground for the TCM/ECM. The Chevy Cobalt is riddled with problems. First it was the passenger side front speaker. Looking for a voltage drop across the wiring while under load should locate the trouble fairly quickly. I just wished Chevy would've kept it consistent with one compact model instead of changing the names. My right hand blinker in the front doesn't work. Many of the Cobalt’s electrical problems can be traced to low battery voltage or bad ground somewhere. It was stranded at a gas station where the previous owner shut it off to pump gas and it wouldn't turn back on. 9" pulley, Header/Downpipe/Exhaust, FE5 Struts/Shocks/Control Arms/Front Swaybar, SSC Springs, Powell Hardcore Rear Swaybar, MSR 045 18" wheels w/ Direzza ZIIs, G85 Recaros + much more 2017 Chevy Volt LT - Black Bowties Nov 3, 2021 · Looking like a canbus problem? The two grounds and the power pin on the OBD2 show 0ohms resistance to ground and battery voltage on positive. I put in a new MAP sensor (standard parts brand) - didn’t help and I put the original back in Jan 14, 2022 · Can you repair a bad ignition coil in Cobalt? A faulty ignition coil cannot be repaired; it must be replaced with a new one. After disconnecting the TCM and/or battery over a few weeks, the problem Nov 14, 2010 · Both my left and right speakers drop in and out. No matter what I search I can’t find someone with the same problem. This is the second Chevy Cobalt that I have owned and I have always been 110% satisfied with the vehicle, its performance, and the service I have received from the network of Chevrolet dealerships I have had it serviced at. Jun 19, 2017 · So last Monday, I bought a 2005 Chevy Cobalt Coupe from a coworker (my first car!). Also, there's another ground at the rear of the cylinder head on the driver's side that could contribute to the problem as well. It controls various functions, including the lights, windows, door locks, and other electrical components. So make sure you check them out. I got an oil change and the tech crack the oil filter cap and oil sprayed on the RT side of the engine. There's a ton of stuff on YT about this issue but the main problem / fix is as above. I came out from one my appointment, turned the fan speed selector to 4, and nothing happened. The speakers wont works for most of the week, then every so ofter one or both will work on the way to or from work (15min), but come the next day, back to no sound out of Jul 14, 2021 · I stripped down the 4 ground wires all attached to ground post above the temp sensor. Aug 28, 2013 · Hello, I have a 2008 Cobalt LS. Combination signal switch failure Apr 16, 2020 · I have a 2007 chevrolet cobalt, The other day i was sitting in my car with it started for a few minutes, everything was operating fine and drove it all morning prior to this, I went to go put it in drive, shifted into Drive just fine and it acted like it was going to go as I pressed the gas and all of a sudden just died. I then spun 2 together and the second pair spun together. 4 and yes theres 2 powers (low and high) and 1 ground - if you have access to a scan tool to command the fans on for speed 1 and 2 and make sure a test light lights up at the fan connector for both and make sure you have ground then the fan will require replacement for the le5 (2. I tried all speeds, still Feb 14, 2021 · This post is for anyone having what appears to be the common and frustrating Cobalt issue of no crank. Faulty alternator is the leading cause of red battery light illuminating in Cobalt which indicates a malfunction in the charging system. Mar 30, 2024 · I'm working on my mom's 06 Cobalt it's a automatic n got the car years ago n starter would randomly not start all lights radio working check engine light would come on n ended up finding a bad ground but now it started it again and my dad put a new one on n nothing so he had me look at it and I Jan 3, 2011 · Hi, I have a 2009 Cobalt LT. Only 55k miles , no rust and in perfect condition. Here is my problem. Bad/no grounds have very weird results. My passenger side turn signal began working only intermittently, so after pulling it out & taking a look, I found that the socket connections were corroded. Always slept in a heated garage. The main ground points you’ll need to check include beneath the driver’s seat, near the e-brake switch, and inside the engine compartment. The BCM malfunctions can cause multiple problems, from minor annoyances to serious safety issues. If you turn the key on and your gauges don't cycle, or you don't get a CEL for 10-20 seconds, then your ECM isn't turning on, and you would need to check power and ground at the ECM. app/$chadwilliamsfixesallVenmo - https://www May 29, 2020 · Your Chevy Cobalt's ECM (Engine Control Module) is its brain. The other day, after only 7 months with a new AC Delco pump, the pump would not come on again. U0100 Power Steering flashes on the dash. So I cleaned the throttle body - didn’t help. Just like a human's brain, your Cobalt can't function without it. When an ECM starts May 25, 2016 · A forum community dedicated to Chevy Cobalt owners and enthusiasts. After some searching on this forum, I did find a post with the same issue, but with no responses. The 2008 Cobalt SS is #248 on the list but look at how the Cobalt laps Virginia Intl Raceway faster than a lot of RWD and AWD cars. Still to Replace: Rack this will fix power steering error and gauge's not working Jun 24, 2018 · what engine 2. It won't start until you jiggle the key And here recently it won't start at all. In this blog post, we’ll explore some of the most common Chevy Cobalt BCM… Read More »Chevy Cobalt May 3, 2011 · long story short i put a new engine in and for the life of me cant remember where i took the ground wire off the engine. I replaced the bulb and it is still dead. Aug 14, 2020 · A good set of images of the ground points on a Cobalt is a must have item. The problem is, as soon as you turn the car on, it pegs at 100psi and stays there. I get the typical fast blink in the dash. However, when I wiggle the wiring behind the headlight I can get it to turn on. The problem has been going on for atleast a year. Lights up and every thing. The car was in rough shape but I have fixed everything. I'll be driving and I'll hear a ding ding sound, my dash will display power steering, although rarely will I lose my power steering. Nov 27, 2019 · My 2006 cobalt LT 2. I had my car-savvy friend take a look at it with me, and he said everything seemed good. Dec 28, 2017 · It could be the ECM ground, or a ground from the ECM (as most have multiple grounds). The problem began as I came home from work one day. I started doing some research and find the BCM issues with this car and how it controls the starter. Feb 9, 2022 · My brother's 2006 Cobalt (only 115k mi) has been a good car but has given me fuel pump problems for over a year. 2 or 2. Below are the most common Chevy Cobalt problems. Come join the discussion about performance, modifications, parts, classifieds, troubleshooting, maintenance, and more! Show Less For More Info visit us at: http://1aau. On sale since the second quarter of 2008. Aug 2, 2022 · The ground terminal is pretty corroded too and the trunk had some water in the well. And while it was never as popular as rivals like the Toyota Corolla and Honda Civic, the Cobalt served as a cost-effective alternative to both. 4L Turbo auto KL4CJDSB2GB652675:smilie_flagge17: 2006 Chevy Cobalt U0073. I recall Mar 13, 2024 · Most common Chevy Cobalt problems. Soon after purchase during a hot July, the check engine light came on, Power Steering on the display screen and the trans would jerk until reached 35 mph, or so. This is a quick video showing the Ground locations in engine bay for 2005-2010 Chevy Cobalts , if you're having any electrical trouble or in my case having Engine Cooling problem 4 cyl Front Wheel Drive Automatic I have a 2007 Chevy cobalt LS with a 2. The problem is, I cant for the life of me find any info on where the ground is located. However, in some cases, if the ignition coil has been contaminated due to an oil leak in the spark plug tube/well and the end of ignition coil boot has not become mushy, you may be able to restore its functionality by cleaning it with an electronic cleaner or MAF sensor Mar 21, 2023 · A forum community dedicated to Chevy Cobalt owners and enthusiasts. I have all the wiring run correctly, unless there is a problem with my ground. Knowing where to find ground points is crucial. 4) engine the fan ground is located on the engine block below the alternator and for the l61 Apr 3, 2017 · 2014 Chevy Cruze Diesel - MSR 013 17" wheels, Black Bowties, UR Rear Lower Bar 2007 Chevy Cobalt LT Coupe - M62 w/ 2. I then added an additional bare wire wrapped around the grounding post and put it in the middle of the 2 pairs of spun together wires. When i put it back into park and attempted to start the car I heard May 27, 2012 · But I'm still betting on a missing ground because P0102 code is missing low reference to MAF sensor, P0030 is open circuit to HO2 sensor 1 meaning either B+ or ground is missing my guess ground, P0135 is HO2 sensor 1 malfunction ( well without its ground reference it will malfunction),same with P0141 HO2 sensor 2 malfunction. I scanned it using my OBD reader and got the following codes: P0700 (TCM Warning), P0717 (Input/Turbine Speed Sensor Circuit No Signal), P0976 (Shift solenoid (SS) B -control circuit low). com i need some help here before my life ends up in a divorce. I tried the ground from TCM to body method with no results. Also, It works when turned on the off (“O”) position. I ran my ground under the dashboard like I have for all my other Oct 30, 2023 · New owner of an extra clean cobal lt 2006 My dad bought it new in 2006 but past away few years after. The previous owner said it had been acting weird for about a week not wanting to start, the speedometer would randomly clunk If this video was helpful, consider donating :) Paypal - https://paypal. For the last 4 months I have been dealing with the common issue of loss of power steering and the Dec 30, 2024 · 2005 Chevy Cobalt Problems. 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