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diagnosis help

Discussion in 'The Garage' started by tecton, Nov 20, 2004.

  1. tecton

    tecton 1/2 ton status

    Dec 1, 2002
    Likes Received:
    elbrock carb, electric choke...bla bla bla

    truck starts ok
    when it first starts up, sounds like its missing...noticable difference in exhaust sound and the truck shaked to and fro slightly...rev it a time or so and that seems to calm down for the most part

    put it in gear...it seems alright, i start up a small incline, and it wants to die...no power...stumbles severely....then dies.

    here is a video of the carb from 0 to too loud for me to stand there and control the throttle

    Carb Video

    when it dies
    it wont restart, unless i mash the gas, then it stumbles horribly, have to keep the pedal to the floor and it stumbles around at 2-2.5krpm for a second then flies up to 5k

    prob is in the carb no?
    vaccume leak?
    fuel pump?

    im lost

    when i rev it past 4k or so....and let off the gas, it drops way down, below 500rpm, wants to fumble around there, then i peck the gas a bit and it sits back up at regular idle

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