1998 GMC C1500 Fuel pump

1998 GMC C1500
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1234MREW
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Electrical problem
1998 GMC C1500 V8 Four Wheel Drive Automatic

were does the gray wire goes from the fuel pump to what? I put in a new fuel pump, but now I have no juice going to the fuel pump. Why ? can you help? thank you.
Mar 27, 2009 at 12:58 PM
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RASMATAZ
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The gray wire goes back to the fuel pump relay and the fuel pump/oil. pressure switch. Do you hear the fuel pump for a few secs-if not check the fuel pump relay and ECM B fuse.
Mar 27, 2009 at 1:10 PM
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