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still spuddering.......

Discussion in 'The Garage' started by reeser, Oct 31, 2003.

  1. reeser

    reeser 1/2 ton status

    Joined:
    Oct 8, 2001
    Posts:
    434
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    Location:
    Hayden Lake, ID
    ok my rig--87 blazer swapped in 89 454--is still spuddering and i don't know why. at first i thought it was the computer giving me crap so i took it to a reputable shop and had them run some diagnostics on it. however it still spudders out at high rpm. the spuddering has gone from stalling and dying and barely running to spuddering at above 4000rpms. to date i have replaced
    ecm
    esc
    prom chip
    fuel pump
    fuel filter
    o2 sensor
    coolant temp sensor
    knock sensor
    plugs
    wires
    distributor
    cap

    i'm thinkin it might be a lumped cam. what do you all think. thanks. /forums/images/graemlins/1zhelp.gif
     
  2. 99firehawk

    99firehawk 1/2 ton status

    Joined:
    Dec 15, 2002
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    491
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    what about the rotor?
     

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