Fuel Pump Not Working?

Tiny
AIRMAN88
  • MEMBER
  • 1998 CHEVROLET BLAZER
My name is A1C Jarrett Rowe. My Blazer won't start and I have learned that the engine isn't receiving fuel. I have recently replaced the fuel pump and have not yet been able to start my vehicle. I have checked the fuses and they were good. Can you help me?
Monday, July 19th, 2010 AT 8:33 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

An inoperative fuel pump can be due to a faulty relay or bad wiring. It can also be a faulty fuel pump as well.
First check the fuel pump relay. The relay is located in the fuse block under the hood.
Visually inspect the relay for any corrosion or burnt pin(s).
You can also test the relay:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

If the relay is good then check to see if you are getting power to the fuel pump. Check the fuel pump harness. I have included the wiring schematics for your reference.

https://www.2carpros.com/articles/how-to-check-wiring

Please let me know of any questions.
Thank you.
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Friday, September 3rd, 2021 AT 12:11 PM

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