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    ken caratello's Avatar
    ken caratello Posts: 1, Reputation: 1
    New Member
     
    #1

    Aug 1, 2012, 02:09 PM
    Trailblazer fuel pump electrical problems
    I recently changed the fuel pump in my 2004 Trailblazer. The problem is no voltage to the gray wire that connects to the fuel pump. I changed the fuel pump relay, the vapor sensor on the back of the fuel tank and checked the fuses. Still novoltage. What else causes this problem? I also checked the ground wire on the frame
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
     
    #2

    Aug 1, 2012, 05:57 PM
    Faulty PCM.

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