Question about 2002 Chevrolet TrailBlazer

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2002 trailblazer lack of engine power light

I went to start my car and it started but shut right off. Started again, I turned off radio and it kept going, so turned radio on & it shut down. Couple of hours later husband went out & asked it I had gas in it. Should be between 1/4 & 1/2 tank...he starts it and gauge says it is full, then shhots all of the way over to empty & lack of power light comes on. Also recently my heat only works on #4 setting, 1,2,3 & 5 do not work.

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I am willing to bet a lot that there is a bad ground from the battery to the chassis of the vehicle. In addition to the ground wire that goes to the engine block, there should be another wire from the battery negative terminal to the sheet metal of the car. Bet is it corroded or loose. If you cannot find this wire it might be because the MFG ran a wire from the engine to the sheet metal somewhere around the back of the engine. You can run another wire frokm the Batt- term to the sheet metal. Maybe put one terminal under some accessory that screws to the sheet metal.

Good luck

Posted on Feb 07, 2009

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