Engine surging at high speed

Discussion in 'General Motoring' started by geo.nova, Feb 18, 2008.

  1. geo.nova

    geo.nova Guest

    Can anyone tell me what could cause my engine to surge at high speed.
    I noticed this was happening while driving at a constant speed of
    about 65 mph. The engine seems to rev for short periods at a time
    without me applying gas but it doesn't affect the speed of the
    vehicle. The car is a 95 Plymouth Acclaim with only 23k original
    Also getting some jerking at low speeds....suspecting
    transmission....but wondering if bad fuel line could cause this as
    well...maybe air getting in fuel line???
    Thanks in advance.
    geo.nova, Feb 18, 2008
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  2. geo.nova

    Steve B. Guest

    If the engine is revving up but the car isn't going faster then
    something is going on with the trans. Have you checked the fluid?
    Could be the torque converter is locking and unlocking (are you
    driving with both feet? ) or could be the trans is slipping.

    The jerking at low speeds could be any of a gazillion different
    things. I would start with a complete tuneup.. new plugs, wires,
    fuel filter and all the rest of that stuff and go from there.

    Steve B.
    Steve B., Feb 18, 2008
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  3. geo.nova

    kmath50 Guest

    My 1993 Voyager started surging at idle speed. It was the AIS Stepper.
    At least I think that is what it is called.

    kmath50, Feb 18, 2008
  4. geo.nova

    kmath50 Guest

    Also, on this mode you can dump codes by doing the "key on" three
    times. This may tell you something.

    kmath50, Feb 20, 2008
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