2008 Cobalt Multiple Misfires - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

 
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post #1 of 3 (permalink) Old 08-29-2016, 01:27 PM Thread Starter
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2008 Cobalt Multiple Misfires

hey guys.. i'm new here and was wondering if someone could help me out and figure out why my car is running so rough when idling. i have changed the plugs, coils, and cleaned the throttle body. the shop i went to said it was the coils so i changed them myself and it still runs horrible. the next thing i was thinking was the fuel injectors but i don't know enough about cars to know if that is the problem. Any help would be greatly appreciated!! thanks
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post #2 of 3 (permalink) Old 09-04-2016, 06:19 PM
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Check Compresion

CEL or Codes? I am getting a missfire code on mine, getting ready to pull the head. Do you know how to run a compresion test?
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post #3 of 3 (permalink) Old 09-08-2016, 10:46 AM
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Did you clean the MAF sensor? I had a similar problem a couple years ago and cleaning the MAF sensor cleared it up.

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