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  1. #1

    Question o2 sensor wire assignment

    can anyone tell me the wire assignment for a stock o2 sensor on a 04 silverado 1500 5.3l automatic?
    i believe the two black wires are the heater, blue is the signal, and white is ground, but i would like to be sure. i would very much appreciate any help.

  2. #2
    Jr. Mechanic GOTSAND4ME2's Avatar
    Join Date
    Apr 2009
    Ukiah, California


    I hope what you stated is correct lol. I just posted the same thing not realizing that you had posted it too.

    2000 Chevy Silverado 1500
    6" RCD Lift
    315/75/R16 BFG All Terrains
    Alpine 7" DVD Reciever
    Jbl Componet Door Speakers Front and Rear
    4 10" Jbl Subs
    Led (Blue) Cluster Gauge Blulb Swap
    Dell Studio Hybrid Digital Media Server
    Cobra CB
    Twin Bearcat Scanners

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