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Thread: slight stumble?

  1. #1
    Garrett booster
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    Nov 2010
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    slight stumble?

    when cruising, the car every once in a while will have kind of a stumble/spit and sputter to it, i put new plugs in it yesterday, champion 12yc's gapped to .30, the wires are like 6 months old they are bosch wires, has a new mopar HEP and mopar coil (few days old) and cap and rotor are also like 6 months old. i re checked the timing and it all looks good, and looked at with the timing light and on about 12.-12.5. i ordered a new fuel filter today. to change that. but other than that i dont have a clue. and its just while cruising. under boost all seems fine.

  2. #2
    Super Moderator Turbo Mopar Staff contraption22's Avatar
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    Re: slight stumble?

    Strange. I would have suggested the HEP, but you have already replaced that.

    Does the HEP have the chrysler pentastar on it?
    Mike Marra
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  3. #3
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanmanČ's Avatar
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    Re: slight stumble?

    Check grounds, maybe the injectors are dirty, check pump output.
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  4. #4
    Garrett booster
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    Re: slight stumble?

    yes the hep that is in the car now is a mopar (with the pentstar) as a temporary fix there was a advance auto HEP in the car, still did the same thing after puting mopar one in. ill take a look at the Fuel pressure next, what kinda numbers should i see?

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