Mechanics

CHEVY FUEL PUMP

1998 Chevrolet S-10

Engine Performance problem
1998 Chevy S-10 4 cyl Two Wheel Drive Manual

I have a 98 chevy s10 pickup, 4 cyl. It had the typical bad fuel pump symptoms. I checked the relay (OK) and replaced the pump (not OK). Its not coming on when I turn the key (no buzz). What else do I check?
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Jrsaint
February 17, 2009.



Fuel pump fuse okay-if so check the computer fuel pump relay control circuit-might not be energizing the relay.

Rasmataz
Feb 17, 2009.
Hello, you might check the ecmB fuse, plus that fuse circuit should be hot all the time. It should be located in the underhood electrical center.

The fuel pump relay supplies voltage to the pump and injectors both.

JDL
Feb 17, 2009.