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  1. #1

    Unhappy Please help 1993 Yukon problem

    I just bougt a 1993 GMC Yukon with a 5.7 L engine. Had one week alternator went out, replaced , ran for 2 days then acted like it was running out of gas, got gas then just stalled out.. it now starts and idles for about 4 minutes then dies.. does the same thing , replaced fuel filter and no difference.. Please give me suggestions on what could be wrong.. Thank you

  2. #2
    Jr. Engineer Gmcsuvguy's Avatar
    Join Date
    Dec 2007
    Alberta, Canada


    Test fuel pressure, is there any other checks you have done? Cap and rotor, plugs, wires, ignition module...what happens when you try and idle it up or drive it? need more info.
    Ken Beida
    2010 GMC Sierra Crew Cab 4X4, 5.3L
    2009 GMC Sierra Denali, 6.2L = 403hp, AWD, Full load

  3. #3


    We don't have any tools to test anything... we put our whole tax return in this thing and now we are BROKE... ugh! so anyways when I try to rev it and keep it at about 1200 Rpms it seems ok maybe it cuts out a little bit , but dosn't stall.. if I put it in drive it dies immediently... is there anything I could check without needing special tools? thank you so much for your time..

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