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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Not getting power to fuse in fuse box pump could you help

Customer Question

Not getting power to fuse in fuse box for fuel pump could you help
Submitted: 1 year ago.
Category: Chevy
Expert:  Dan replied 1 year ago.

Hello, my name is***** you checking for power with key in start position? Thanks.

Customer: replied 1 year ago.
we are
Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Dan replied 1 year ago.

Have you replaced the fuel pump relay?

Customer: replied 1 year ago.
We switched with relay that works. We have no power in or out to fuel pump fuse
Expert:  Dan replied 1 year ago.

Remove Relay and check pins. One pin should have constant battery voltage, one pin should have constant ground, and other pin should have power with key in start position. Let me know how it goes, thanks.

Customer: replied 1 year ago.
One shows constant voltage, one shows constant ground, with key in start position no other pin shows any voltage
Expert:  Dan replied 1 year ago.

Access green/white wire at pin 50 of connector 1 at PCM. This wire should have voltage with key in start position, let me know. Thanks.