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Old 06-29-2011, 09:15 PM   #1
97blazzzerls
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Question fuel gauge over full and no power to fuel pump

hey guys help me out here ive got a 97 blazer ls 4door and i have no power to the fuel pump/sendingunit and my fuel gauge lays wayyy over full when i turn the key on ive changed the sending unit and ive changed the ignition switch but still no power i tryed primeing with a 12v fused from batt to primer cable by firewall and still nothing so i switched the relay around with another one and still nothing please help
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Old 06-29-2011, 11:30 PM   #2
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Re: fuel gauge over full and no power to fuel pump

Are you saying your fuel pump doesn't run or that your fuel gauge is reading full all the time . A fuel gauge that always reads full is likely caused by an open circuit ( broken wire ) in the wiring between the gauge and the sending unit in the tank .
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Old 06-30-2011, 09:44 AM   #3
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Re: fuel gauge over full and no power to fuel pump

neither i have no power to the pump and the gauge is laying over full
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Old 07-06-2011, 12:05 PM   #4
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Re: fuel gauge over full and no power to fuel pump

i also have no spark at all
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