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engine pulsating

Discussion in 'Ford Trucks' started by chas4x4, Feb 16, 2005.

  1. chas4x4

    chas4x4 Senior Member
    Messages: 101

    F250 w/351 engine is pulsating after cold or hot start up after you run it for a while it idles ok,no check engine light yet does any one have any ideas.
     
  2. b2driver

    b2driver Member
    from MD
    Messages: 89

    EFI or Carb?
     
  3. chas4x4

    chas4x4 Senior Member
    Messages: 101

    EFI, auto trans
     
  4. saleen49

    saleen49 Junior Member
    Messages: 24

    Need more info, is it surging up and down or missing?
     
  5. b2driver

    b2driver Member
    from MD
    Messages: 89

    My first guess is to check the idle air control and clean it if needed.
     
  6. chas4x4

    chas4x4 Senior Member
    Messages: 101

    surging up and down no skip it does not do it on the road so far just when in park or in gear with your foot on the brake