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Chevrolet Cobalt Transmission Issues

24

Comments

  • What more do you want out of your cobalt,you over load it everyday and you stop and go a thousand times everyday. Sounds to me you need to do more regular maintenance.
  • This is my second Cobalt,the last one was the 07 Supercharged,I have NO that is none problems with either one of these Cobalts.So Im sorry you all have problems,me I will NEVER buy a rice burner NEVER EVER.
  • I have a Chevy Cobalt LT 2006 and purchased it in October 2006. It has 238,000K miles and I love it. 5 Speed may be lucky but I am going to upgrade to Malibu because of the size.
  • I purchased my 2008 Chevrolet Cobalt from Vandergriff Chevrolet March 2008. Happy of my very 1st major purchase and my very 1st brand new car!! After 6 months of driving the vehicle, may car starts to give me hesitation and stalling with jumping RPMs. Since then I would go to service at every oil change and report problem. They could never duplicate the problem. A service manager, Mr. Scheroder, even drove around with me and at the time the car didnt stall. Over the course of these 3 years, it took me until this year to THINK!! Just video tape it! i did, and finally... WE SEE THE PROBLEM!! hmmm? now you see it? 1st it was the torque converter.. replaced. Problem is still there, took it back, NOW its the transmission chip or something.. replaced.. problem is still here. I picked my vehicle up today 5/6/2011 and less than 5 mins the problem is still there. I have cantacted GM and I get their call center that is obviously no located in the USA then i have been assigned 3 different "district specialist" Kevin, Deongela, and now Victoria.. There was one more that I have yet to speak with about my Power Steering failing on me which caused me to wreck and get hit by an 18 wheeler but thats a whole different topic. I hate talking about b/c i'm still in fear when i drive just thinking about the hit. what if my kids where in the car? Back to vanderfgriff.. Overall, i will never buy from them again. I am the only person in my family that went to Vandergriff and we have 6 GM made vehicles. None but my death trap Cobalt has had issues. Back and forth back and forth. If they worked on my vehicle today.. why was my car so scorching hot on the inside of it? felt like its been sitting outside for the past 3 days it was there. I'm not stupid. I flagged down a local sheriff on my way home, asked his advice and he kindly witnessed the hesitation. I just mailed in my Lemon Law complaint and will make sure I am not going to have to deal with this Car and its issues AGAIN! I have to pay another certified mechanic just to inspect the work Vandergriff supposedly performed for me. ready for this to be over

    ...and to think, i was made famous by this car back in december 3, 2010.. headline news.. MANSFIELD SUPER MOM DELIVERS BABY IN HER CAR!! When i was on Fox news I wanted to blast GM and Vandergriff so bad but I said no kea.. dont cause trouble but NOW!! I'm determined. I will win if I don't quit and I'M NOT A QUITTER
  • cdn_shawtycdn_shawty Posts: 12
    eisheschayil- does ur car stall and have jumpy rpms all the time? i had jumpy rpms when i was down to 1/8th tank of gas and then my car would die even though it said there was stll 1/8th tank. FINALLY after over 3 years of this crap the one dealership replaced the sending unit and it fixed! mind u i still have problems with mygas gauge not reading right and I've pretty well gave up at this point especially when my warranty is up..
  • My 2008 Cobalt is having the jumping RPM's too. It mainly happens between 30 - 45mph when switching into high gear. The dealership could not duplicate the problem 4 times in a row and threatened to charge me $57 for wasting their time. I pulled the service advisor into the car and duplicated the problem within 2 minutes. As with your car, the dealership replaced the torque converter but it did not fix the problem. Since then, they claim not to be able to duplicate the probelm. The dealership elected not to replace the tranny solenoid valve which I insisted upon. It only costs $14 bucks on the internet but I don't know where it is or I would do it myself. I had a 2004 Yukon Denali that had a similar problem that was immediately corrected by replacing the solenoid valve. My extended warranty just ran out a few days ago too but the service advisor said the powertrain warranty would probably take care of it if they can duplicate the problem. The flickering RPM's is getting worse and is annoying as hell (your body gets thrown around in the car; accelerate and then decelerate 6 or 7 times in a row quicker than you can hit the gas pedal with your foot on and off). In addition, the dealership had to replace all of the control arms in the front end. The front tire sounded like it was going to fall off everytime I hit a bump. I had it all replaced right before the extended warranty ran out. This is why GM vehicles have a hard time competing against the Asian car manufacturers.
  • gmcustsvcgmcustsvc Posts: 4,068
    fixmycobalt,

    Could you please email me your VIN? I would like to look further into your situation.

    Thank you,
    Caron, GM Customer Service
  • Hello Fixmycolbalt,
    I wanted to say that I have a 2008 coupe and I also am having a Jumping RPM's also. This happens when I am going around 30 to 40MPH and it is getting more annoying to me everyday. I have been told to check the gas I am buying---put in some gas treatment--and use some injector cleaner. I was also told to change the fuel filter that some junk may be floating. They have also told me that a dealer will bleed my bank account and you will still have the annoying jerking problem. I am not getting any code signals that will help me pinpoint a problem. I have to watch my P&Q's money wise so when I read your post it was exactly whats happening to my 08 colbalt. I wanted to know if you got the solenoid valve replaced and if that worked? If so did you replace it or did a shop do it---and if you found out where its at and of course the most important question--How much too replace it. Any and all help would be greatly appreciated. Thank You----Terry :confuse:
  • #45 of 45 Re: Cobalt Key Stuck, Stalling, ans power steering Nighmare [fixmycobalt] by mountainboy1

    May 31, 2011 (6:07 pm)

    Replying to: fixmycobalt (May 27, 2011 7:04 pm)

    Hello Fixmycolbalt,
    I wanted to say that I have a 2008 coupe and I also am having a Jumping RPM's also. This happens when I am going around 30 to 40MPH and it is getting more annoying to me everyday. I have been told to check the gas I am buying---put in some gas treatment--and use some injector cleaner. I was also told to change the fuel filter that some junk may be floating. They have also told me that a dealer will bleed my bank account and you will still have the annoying jerking problem. I am not getting any code signals that will help me pinpoint a problem. I have to watch my P&Q's money wise so when I read your post it was exactly whats happening to my 08 colbalt. I wanted to know if you got the solenoid valve replaced and if that worked? If so did you replace it or did a shop do it---and if you found out where its at and of course the most important question--How much too replace it. Any and all help would be greatly appreciated. Thank You----Terry
  • gmcustsvcgmcustsvc Posts: 4,068
    mountainboy1,
    I apologize for your concerns. If you have any questions comments or concerns please feel free to email me. I apologize I do not have technical information. My best advice is to speak with a dealer.
    Christina
    GM Customer Service
  • My Vin is 1G1AK18F887213013. If you are from GM Service, you can lookup my history on the VIS system. My car is getting worse and I might be forced to take it back to the dealership so they can tell me that can't duplicate the problem again. It's becoming a safety concern with how it bucks you around in the car. Someone on the Internet told me the valve body (solenoids & valves) needed to be cleaned or rebuilt. I don't check the posts on this website so email me at brookl089@yahoo.com.
  • Terry,

    I'm going to take my Cobalt back to the dealership in a week or so and have it out with the service manager. This will be the 4th time addressing the flickering RPM's between 3rd and 4th gears. I will take a 1/2 day off from work so I can ride with mechanic to duplicate the problem. My daughter is getting her learners permit in a few weeks and I feel the Cobalt is too dangerous for her to drive with the flickering RPM's (it creates bad handling problems with your body being jerked in the car).

    Main Motors Chevrolet Cadillac is my dealership in Anoka, Minnesota.
  • gmcustsvcgmcustsvc Posts: 4,068
    fixmycobalt,
    I apologize for your frustrations. Please keep updated on your progress. I look forward to your response.
    Christina
    GM Customer Service
  • techtravistechtravis Posts: 1
    edited July 2011
    I have a 2008 Chevy Cobalt Sedan that I bought Certified Used.
    The car presents a similar problem as to those described here. It's most noticeable when driving between 40 and 50MPH and a constant rate of speed with no incline or decline in road grade.

    The car will 'flutter' about 700rpm from 1500 to close to 2300. I took it into the dealership on Thursday and they were able to verify the issue I was having which was a partial relief. The dealership has since replaced the Transmission valve body. I don't know for certain if the issue is resolved as they still have the car for other routine maintenance today.

    Mileage on the car sits at 33,000
  • When I get time, I'm going to post a video on YouTube showing the fluctuation. I'm sure the valve body is the problem. Mine has 67,000 and been doing it since 44,000 miles. I get the run around at the dealership trying to duplicate the problem.
  • Please keep me updated for my 2008 Cobalt is getting those flutters worse. Mine has 56k for miles. Again please let me know if what they do to your auto works. Sincerely, Terry
  • acaridacarid Posts: 1
    I am about to buy a 2009 Cobalt, LT, with 20,000 miles on it, from my friend, yes I know..not a good idea but he is selling well below what is worth. I went with my wife to test drive the car and noticed a kind of jerking in the automatic transmission in low speeds, less than about 30 mph. I didn't bring this up with my friend as he said he is not aware of anything wrong with the car and it is still under warranty. I figure if there is a problem I will check it out with the dealer. I can always ask him but perhaps this is just the way the car is. The car belonged to my friend's mother who recently passed away and so it is up for sale. Does anyone know about this jerking? Is this really a big deal or not? I'm paying wholesale for the car. Thanks for your help!
  • I have a 2008 Cobalt LT. After 54k it started doing the same thing. If you look back at the message log you will see others are also having the same issue. I have not been able to find out what is causing this but have been told it may need to have the throttle cleaned and adjusted. If you find out anything pls let me know and I will let you know also. I have tried to see if there are any recalls or other GM issues but they are not saying. I almost feel that this could be an issue with the throttle system and sooner or later GM will have to do recall to fix issue. Hope this helps. :D
  • I am in the same situation; I own a 2006 cobalt and I had never had problems with the car until September 2009, that the gas pump had a leak, which later on I was reimbursed due to being a recall. After that my car ran fine for a while then the problems began my car starting acting weird every time I would slow down or press on the brake. The car started to shake every time I was at a red light or stop, the engine light and the TC light would come on and the car would just died. I had to wait for like 30- 45 minutes to turn the car back on and the car would be just fine; no engine light on nor anything. I took the car to Auto Zone and detected a code, which was a misfired, then went to the mechanic, where the computer gave the code that it was the engine box, got that replaced, with new sparks, worked ok for like two weeks and then the problem came back this time only when my AC was on. Took it back again to Auto Zone and detected no codes, took it back to the mechanic for a full diagnostic and no codes, the mechanic said that it could be the AC (compressor) because it was turning on and off while the car was on. They took the AC system apart cleaned it and then the car worked fined for like one week then the same problem came back; took the car to three different mechanics and they all did full diagnostics on my car and no codes come out and still no one can figure out what’s wrong with my car. Every time I stop at a red light or stop sign my car, shakes like it’s going to die and today at work, when I went to lunch my battery was dead. I don’t know what I can do or what the problem is with my car and apparently the mechanics don’t know either. I have been told that it might be an electrical problem, the transmission, the fuel sensors, an oxygen system problem but yet no one can find the real cause. :sick:
  • I own a 2006 cobalt and I had never had problems with the car until September 2009, that the gas pump had a leak, which later on I was reimbursed due to being a recall. After that my car ran fine for a while then the problems began my car starting acting weird every time I would slow down or press on the brake. The car started to shake every time I was at a red light or stop, the engine light and the TC light would come on and the car would just died. I had to wait for like 30- 45 minutes to turn the car back on and the car would be just fine; no engine light on nor anything. I took the car to Auto Zone and detected a code, which was a misfired, then went to the mechanic, where the computer gave the code that it was the engine box, got that replaced, with new sparks, worked ok for like two weeks and then the problem came back this time only when my AC was on. Took it back again to Auto Zone and detected no codes, took it back to the mechanic for a full diagnostic and no codes, the mechanic said that it could be the AC (compressor) because it was turning on and off while the car was on. They took the AC system apart cleaned it and then the car worked fined for like one week then the same problem came back; took the car to three different mechanics and they all did full diagnostics on my car and no codes come out and still no one can figure out what’s wrong with my car. Every time I stop at a red light or stop sign my car, shakes like it’s going to die and today at work, when I went to lunch my battery was dead. I don’t know what I can do or what the problem is with my car and apparently the mechanics don’t know either. I have been told that it might be an electrical problem, the transmission, the fuel sensors, an oxygen system problem but yet no one can find the real cause. :sick: :confuse: :cry: :mad:
  • I finally made a service appointment today for Wed 9/24/11. I made the service manager ride in the car with me so we could duplicate the problem together and discuss probable causes and solutions. Remember, the dealership replaced the torque convertor already and that didn't fix the problem. I'm at 71,000 and looking to use the 5yr / 100k powertrain warrantly to get it fixed. I told the service manager that the valve body most likely needs to be replaced if it cannot be cleaned OR the solenoid on the overdrive gear needs to be replaced. I'll keep everyone posted on the results.
  • Dropped my 2008 Cobalt off on Wedneday and they are replacing the valve body as I requested. The car should be ready by this Friday. There is a new updated valve body that the dealer had to wait for from Chevrolet. I guess someone at Chevrolet must know about the fluttering problem if there is a new updated valve body part. Advice to Chevrolet...put a recall out there to fix this problem because it does cause handling problems and definitely compromises safety. The fix is being covered under the 5yr/100,000 warranty....71,500 miles.
  • Great information!!!! I know I have been searching for at least 4 months to try to find out what the problem is. It also sounds like Chevrolet is listening and will respond soon with a letter to inform all 2008 Colbalt owners of this defect. Please let me know if you get the car back Friday and if this takes care of that flutter. I am getting very annoyed with going down the street looking like I am pumping the gas back and forth at 25 to 30MPH. Thank you for the information. I will contact my dealer after I hear back from you and your valve body fix. Sincerely--mountainboy1@aol.com :)
  • I got it back tonight and it drives fine. From the repair order: The "TCC shutter" problem was from the "TCC bore scored causing TCC valve to stick; replaced valve body and reassembled". There is a TCC solenoid inside the bore that wasn't operating properly. If you search "TCC shutter transmission" on Google, more information is available. So, for everyone else trying to describe the problem to a service advisor say "TCC flutter or shutter" and that you want the valve body replaced.

    The link below does a good job explaining what a TCC is:
    http://autorepair.about.com/cs/troubleshooting/a/aa061701a.htm

    The service advisor didn't seem too happy that I used my Google knowledge to tell him what to do, but oh well. Good luck with your fix mountainboy1!!
  • gparagpara Posts: 23
    I have a neighbor with the flutter problem also, started at 44k miles, no codes and there 70% of the time,
    Did anyone else get the trans fixed by replacing valvebody and tcc solenoid to verify fix???
    Any GM service bulletin numbers would be appreciated
  • I am glad to hear that this may have fixed the flutter problem. Were you able to get this fix using your powertrain warranty? Please let me know and I am also sure that there are others wondering as well. Thank You---
    Mountainboy1@aol.com :)
  • I have a 2008 Chevrolet Cobalt with an automatic transmission. I've had it for about a month and a half. There are around 79k miles on it. I have taken it to the dealership numerous times regarding a problem that I first thought was an intermittent shifting problem. The first time, they replaced and reprogrammed the transmission control module, yet I still have had the problem.

    Sometimes it just feels kind of jerky when it shifts, like it's shifting hard. Other times, like the other day for instance, I was driving a constant speed of 50mph. About 4-5 miles into it, it just felt like my engine cut out for a split second or something, and it jerked me really hard. It scared the crap out of me, but then continued driving as if it never happened.

    I got a video of the RPMS jumping while I was at a constant speed of 30mph. The mechanic said it's normal.. I KNOW it's not normal. It's something you can feel, almost like it hesitates, or its trying to downshift over and over. It's such a hard problem to explain. :( I'm becoming very frustrated with it.

    Has anyone else had a problem like this? The dealership tried to blame it on my tires, which made no sense. They called saying the mechanics couldn't even drive it that fast because the tires were so bad and that they had told me NUMEROUS times that my tires were terrible. MY TIRES ARE LESS THAN A MONTH OLD.

    They are no help!!!!
  • gmcustsvcgmcustsvc Posts: 4,068
    ameliaannne,
    I apologize for your frustrations. Have you spoke with GM Customer Assistance? Has the dealer involved Technical Assistance? If not, I would definitely recommend having a case set up. I would be happy to do so for you. You would just need to email me your complete contact information including mailing address, VIN, current mileage, involved dealer, and a description of your concerns and experience. I look forward to your response.
    Christina
    GM Customer Service
  • I do have a similar sensation regarding the RPM's jumping at 30 mph -though not as harsh as you describe your symptoms. I own a 2008 HHR with Identical powertrain as a Cobalt. If the speed is locked in around 30 MPH for a couple of miles it feels like I am rocking gently in my seat while driving or as if the torque converter wants to engage. i just learned to live with it and back off on the accelerator and re-adjust my speed. Again, I've learned to live with that issue and have not taken it to the dealer.

    No concerns regarding the 50MPH symptoms.
  • Good Morning GM Customer Service,
    I have an appointment with Champion Chevrolet in Johnson City TN at .(423) 218-0328
    next Sat. at 8:30am (11-05-11). I have talked with tech Mark Leonard and told him what the issue was and also that I had been talking with other Cobalt owners online that were having the same issue. Mine= 2008 Chev Cobalt, miles 62k I dont have the VIN on me right now. I told Mark that most owners have found that the issue is a TCC valve and cover problem. When the dealers go to order parts to replace it takes extra time to get parts due to new issued replacement parts being sent. Sounds like a defect and as I have found should be covered under the Powertrain Warranty. I am also emailing the GM Customer Service my info to set up a case incase the dealer states its not a problem. Terry Reece--TN
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