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rough hard start idle

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  1. Problems and Service
    I have a 06 cobalt LS 4 door car. I have had it two weeks and I've already had to put money in it no used car is perfect I know lol. Any way I've already had to do a break job get a new battery new ball joint tire rod new oil pan as well and now I have to take it back in for the dipstick tube...
  2. Problems and Service
    My Chevrolet Cobalt LS 2006 pre-owned, I'm huge fan of cobalt I really wanna SS. Anyway I put new Spark plug correct gap, Oil change, cleaning throttle body so shiny, new alternator, and still rough idle with A/C Maybe Fuel filter or other? Im new
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