Question about 1990 Ford F150

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Truck runs rough

I have a 1990 Ford F150 4x4 300 6 cylinder. The truck seems to run fine when you first start it in the morning and the engine is still cold. Once it warms up the motor starts surging and idling rough and bucks and kicks at a steady speed. And has a strong fuel odor coming from the exhaust.

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  • Anonymous Mar 18, 2014

    Engine wont shut off after key is shut off. Bucks and snorts then dies.

  • Anonymous Mar 25, 2014

    runs fine when warm. but when it cools off it wont start.

  • Anonymous Mar 26, 2014

    FORD F150 KNOCKING AND RUNNING ROUGH

  • Anonymous Mar 29, 2014

    puffs white smoke when running

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Sounds like one of your chambers isn't firing. Run your car for a few minutes, shut it off then pull your plugs one at a time and see if one of them is wet. Might just need a new plug.

Posted on Nov 28, 2008

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