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ken caratello
Aug 1, 2012, 02:09 PM
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
Aug 1, 2012, 05:57 PM
Faulty PCM.