Question about 2002 Chevrolet TrailBlazer

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Vehicle is not geting fuel.. changed fuel pump, checked all wires and conectors to the system, also changed fuel relay and checked fuses. still im not geting fuel to the engine, or even to the filter that i have also changed. the fuel pump will not turn on at all when it is in the truck, but when i bench test it, the pump turns on and runs. the fuel gague works also, and i have 2 fuel pumps that do the same thing but will not work in the vehicle the only thing i can think of is the cam shaft sensor, could this be the problem. 2002 trailblazer 4.2L 6cyl

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Oil pressure switch is bad.

Posted on Aug 06, 2010

  • dieselpro Aug 09, 2010

    Chevys are bad at loosing grounds. I always ground the ground wire coming out of the fuel pump to the frame rail by the tank.



    I just find the suppy pump true ground wire and splice a short wire into it and run that wire to the frame.

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1 Answer

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1 Answer

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