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2005 Chevrolet Cobalt



  • pa356228pa356228 Posts: 34
    My 2006 chevy Cobalt LS does the same thing in hot and cold weathers. It is common. I usually let my car warm up about at least 10 minutes. If you have remote starter and your heater preset, it is alot nicer. Plus, it is better for your car if you give it least 10 mins to warm up. Another way, raise your rpms to 1500 hold a steady pressure on the accelator. It will warm you car up alot faster. In the future runs, after your car is paid off, get a remote starter. I had to purchase one 2 years ago since my Cobalt LS didn't have one included. I used to live in those cold snowy days and nights also do missed the snow. Don't worry about the jerks, it is normal. If the your Cobalt jerks too heavy, then you do have a major problem and it needs to be service or fix. Could be costly. Remember this in the future.
  • kee1kee1 Posts: 3
    Thank you so very much for replying! You a GREAT ONE!
  • hello i have a 2005 cobalt and i am having alot of problems trying to get my car inspected. I have replaced the MAF and both o2 sensors and the EVAP Purge Valve and the gas cap. I had the codes pulled and they told me that what the problem was and i replaced them and the Check Engine Light is still on. and Cant get the car inspected at all until i get everything replaced to get that light off ANY ONE HELP ME or If you have the same problem. The only problems i had with the car was the radio didnt want to work when i stuck the cd in and the wheel bearing went at 10,000 miles, now my car has 85,600 miles and the Engine light is the only thing that bugs me
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,052
    What you need to do is post the codes that were found on a forum and let people who work with Cobalts fill you in on what may cause those.

    Typically just letting a car parts counter guy check codes and tell you that because a certain code appears it means a certain item is bad and needs replaced usually gets expensive. The cause of the code needs to be determined; often the cause is something somewhere else.

    I don't know if the more general forums for Cobalt here have people who know those things for the Cobalt or not: I'd suggest

    Cobalt or there are some other internet forums you might try.
  • the codes that come up on my car are
    P0102 MAF or VAF A Circuit Low Input
    P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
    P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
    P0443 EVAP Emission Control System Purge Valve C Fault

    I went to get it inspected and the inspection staion told me it failed the test due to the gas cap and i returned the next day with the gas cap and they told me that its not ready for inspection. And when i shut the car off the only codes come up are the P0102 and the P0443.
    I changed them and the light is on and i asked the Service Station at the Chevy Dealer and they told me i have to get the codes reset and drive the car around and put any where from 50 to 200 miles on the highway and stop and go traffic area and the computer should be reset itself. Ill let you know how it goes after i get it reset.
  • i replaced everything from the Evap Purge Valve and the Evap Vent Valve and the Tank Pressure Sensor and the Gas Cap and my light still comes on for the Evap Purge, when i replace the tank pressure sensor i found out the one hose on top of the tank was so loose i went out and found a replacement and its tight now and my light still comes on
  • Hello to anyone that can help me get my transmission fixed on my 2005 chevy cobalt. My transmission has a shutter that I can not get rid of. This has been on going for a year now and I have had my car in and out of the shop about 4 or 5 times for this problem with no solution.

    I have had several services performed. I have had the transmission flushed of the fluid and new fluid added, the dealer has reflashed my computer and I have had the throttle body replaced but nothing has worked. I took my mechanic for a test ride awhile ago and the is how we replaced the throttle body and I thought that would of fixed the problem, but it didn't.

    Also my car has seemed to have lost it's pick-up from this problem. It is hard to go from a complete stop to start again going up a hill or anything that has an incline. This shuttering problem happens when my engine is warm and has been driven for a little while. The way i get it to happen is I apply my foot to the gas pedal very lightly and it will start to shutter and then slam into first gear. What it feels like is the wheels are moving, but the car itself is not ready to drive just yet. The RPM's go up, but the car does not go.

    I have had this problem for a long time and I need transmission help from anyone that has any kind of experience with this. If there is someone out there that has had this problem before and got it fixed, please let me know what they did so I can tell my mechanic so it gives us something else to look into. Any suggestions of what to do at this point would be appreciated, but I think I am at the point where it is something internal in the transmission that needs to be fixed. PLEASE HELP ME!!!!! I am tired to taking my car to the shop and not getting this fixed.
  • gmcustsvcgmcustsvc Posts: 4,057
    Hello Joshuamrphy,
    I apologize that you are experiencing a concern with your vehicle. Can you please email me more information about your situation so I can look into your situation further? You can get my email by clicking on my name. Thank you,
    Mariah GM Customer Service
  • sharkman1sharkman1 Posts: 19
    Sounds like what happened to mine('06) it's an automatic but acting like a manual. Turned out to be the transmission control module. It was throwing various codes & was hard to track down. They(chevy) happened to have a new tcm on the shelf & decided to give that a try, cured the prob. That was at 85k or 86k, now it has 98,877 & no prob since. Good Luck! :)
  • Ok i will take the transmission control module into consideration. However I don't know if mine is throwing any kind of codes because my check engine light has not come on when this happens. Did your check engine light ever come on?
  • sharkman1sharkman1 Posts: 19
    Yes, that's when I took it to chevy. Told them what it was doing. A couple days later they called & said "its throwing different codes, can't pinpoint yet can we keep it a little longer? We haven't seen this before."

    Anyway, suggest that to your service rep it'll be a good place to continue. How many miles do you have? And what are your thoughts on timing chains?
  • My car hasn't even thrown a check engine light yet, however I know there is something wrong with my car. I can feel it when I put my foot lightly on the gas pedal. I will run the transmission module control idea past them and see what they say. Thank you for that info that may help me get my car fixed. I have over 76,000 miles on my car and I am trying to get the most out of it.
    On the timing chain question I really don't have an answer. I have never really thought about the timing chain at all.
  • lol i know old post but still funny
  • lidavislidavis Posts: 3
    edited May 2012
    So, last night MY check engine light came on. I've had shudders before but they seemingly went away. I have noticed that my car didn't seem to go as fast as it once had before, and chalked it up to older age. It's a 2005, with 80k on it, I took it to a local place thinking about getting a flush, but they said I needed to go to a transmission specialist, that it was throwing out codes: 700, 752 and 106.

    if you could let me know how much a new TCM cost? and if this issue sounds similar to your own? I'd love to know. I don't have money for an expensive fix. :sick: :confuse: :cry:
  • My car has been doing exactly the same thing, did the transmission control module workout for you? I still have no check engine light. I will take my car for diagnostic next week I will mention TCM to see if replacement fixes problem first hand.
  • my 2005 chevy cobalt wont t shift into second gear unless you let out of the gas.... please help
  • Good morning colleenhaire,

    We would be happy to look into your situation further, although we cannot guarantee what the results will be up front. Please send us the following information via email at so we can set up a Service Request: your name and Edmunds username, phone and address, the last 8 of your VIN and current mileage, and the name of your preferred dealership.

    GM Customer Service
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