Question about 1999 Chevrolet Silverado 1500

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Possible fuel pump problem

I just bought a 1997 1500 pickup with 4.3vortek was a company truck and it would run fine but then one day it just quit running we figured fuel pump because you would not hear it come on then i crawled under and moved the wires on top of the fuel tank then turned the key back on and herd the pump come on . got the truck home and everything fine and then later i went to start it and the pump didnt come on i dont know if it is the pump which was i believe was recently replaced or maby a bad wire somewhere?

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Instead of dropping tank I would remove the bed it is alot easier.

Posted on Aug 31, 2008

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Sounds like either pump/wiring, or connector on top of the pump unit. My best advice would be to drop the tank and check for voltage at the fuel pump wires (power and ground) for a short period of time when you turn the key on (Gray wire/ black wire on the 4 pin connector) If you moved the wires and it worked it definitely points to a bad wire close to the tank or loose connection on top of the tank.

Posted on Aug 13, 2008


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