Question about 2002 Chevrolet Silverado

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Flooding/shutting off/black smoke/harder on gas

Start the truck let it idle for a min and go its fine but seems like its missing on its fire. start and let idle for ten mins and it wants to shut off ,when you let off gas then you get black smoke out the exhaust. any ideas????

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  • dallen4582 May 11, 2010

    check spark plugs

    check vacuum lines

    check electrical lines

    would be good if we had more to go by

  • Eric Murphy
    Eric Murphy May 11, 2010

    Is it a Diesel?

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  • 141 Answers

Sounds to me like you have a bad coolant temperature sensor. Or a bad o2 sensor. Leaning towards the coolant temp. sensor. I hope that I helped. Best wishes.

Posted on Jan 20, 2009

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