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    Thread: Engine Stumbles After A Cold Start

    1. #21
      2009 Aveo 5
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      That's kind of what I was thinking too, well we'll see what happens in the morning, and let you know. Thanks again for the tip.



    2. #22
      Almost time to do my timing belt ontarian_frog's Avatar
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      I hope that's all your car needed!
      I leased Pontiac Wave from September 2006 to August 2011.

    3. #23
      2009 Aveo 5
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      Me too, it's not a big problem, it runs fine. Doesn't do anything else funny, you drive it two blocks and that little glitch is all over with til the next cold start up.

    4. #24
      2009 Aveo 5
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      Hey Frog, all indications are that the problem is solved. I drove it home from work yesterday afternoon and no stumble/loss in power during warmup. I drove to work this morning and no stumble again during warmup. Looks good so far, I won't be sold until I get a few more cold starts and warmups on it, but it's looking good. I'll report back in a few days.

    5. #25
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      good to hear.


    6. #26
      2009 Aveo 5
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      Yup, definitely cured by the ECM Reset. Thanks Frog and everyone else that posted.

    7. #27
      Almost time to do my timing belt ontarian_frog's Avatar
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      Glad that's all the problem was.
      I leased Pontiac Wave from September 2006 to August 2011.

    8. #28
      2009 Aveo 5
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      Yep, she works nice, thanks again.

    9. #29
      2009 Aveo 5
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      This definitely fixed the problem, the car has been outside instead of the garage and the temps have been in the low 20s F around here lately and no stumble, thanks again.

    10. #30
      What do you mean there's no turbo? paulsaveo's Avatar
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      If anyone still checks this thread, im having a high idle issue. unfortunately, what I have is not a cold start issue. 50 to 75% of the time when I start my 04 aveo (manual trans) it will idle anywhere from 2000 to 2500, i can drive 20 miles down the road, come to a stop and it is still idling at 2000. I can shut the car off let it sit for a few minutes, when I restart, half the time its still at 2000, half the time its normal. It did this over the summer time when it was hot out. I performed a fuel injection and fuel induction service, cleaned the throttle body, replaced the IAC. The aveo worked fine for a few months, now its acting up with the high idle again. Their has even been a few scattered instances lately where it almost sounded like their was a small backfire too. Work that has been done in the last 2 years, ign coil plugs and wires, cat and air/fuel sens, complete AEM intake, injection and induction service, IAC, coolant flush, timing belt water pump both idler pulleys, drive belt and tensioner. If anyone has any input, it would be greatly appreciated. I am tired of messing with the car





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