Mechanics

CHEVY FUEL PUMP

1998 Chevrolet Blazer

Other Category problem
1998 Chevy Blazer Engine Size unknown 220000 miles

where do I check electrically if my pump is shot? I know there is a connection to check but I don't know where?
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Micheley
December 15, 2007.




Attach a pressure gauge to the fuel rail schreader valve, it looks like a bicycle tire valve, Turn the key on you should hear the pump run for 2 secs, cycle ignition switch several times to get best reading, SEFI should have 56-62 PSI on the gauge.
If you have a volt meter and the pump does not run for 2 secs with key on, test the gray wire at the connector at the pump, Should read battery voltage.


http://www.2carpros.com/forum/automotive_pictures/62217_Wire_Colors_1.jpg



http://www.2carpros.com/forum/automotive_pictures/62217_Wire_Colors1_1.jpg


Merlin2021
Dec 16, 2007.


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