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  1. #1

    1984 f150 v8 351 w not idling but starting

    My truck starts but it is not idling. Does anyone have an idea what could keep it from running longer than a second or two? Itl only start if i prime the carb with the gas pedal. Help please?

  2. #2
    Sounds like either a clogged fuel filter, or bad pump

    Sent from my HTC One X using F150 App
    2018 F150 XLT Sport Supercab 2.7
    1968 Ford Thunderbird 2 door Landau 429 Thunderjet V8 1 of 950

    Past: 16 F150 5.0 , 14 F150 5.0, 07 F150 5.4, 03 Ranger 4.0

  3. #3
    Senior Member
    Join Date
    Oct 2012
    Name
    Ryan
    Location
    CA
    Posts
    16,020
    That's what it sounds like to me, your engine is not getting enough fuel at idle. Run some fuel system cleaner through it, change the fuel filter, and it would probably be a good idea to clean your carb too.

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