Mechanics

TRUCK WON'T START. POSSIBLE FUEL PUMP PROBLEM?

1999 Chevrolet S-10 • 121,000 miles

I have a 1999 Chevy s10 4.3 L V6 with about 121,000 miles on it.
The truck is in good shape but recently I was driving it and as I
would put my foot on the gas the truck seemed to decelerate almost like
it was loosing fuel supply. I pulled over and shut off the engine and let it sit for a little while. I started it up again and drove back to my house (the same problem was occurring). Now the truck wont start at all.

When I turn the key I can hear the fuel pump start to run for a few seconds then shut off which makes me think that the fuel pump is working but maybe the relay isn't working?

What are some other things I could check out?

Thank you!


Justin
Avatar
Jjeflar
January 9, 2012.




Check the fuel pressure with a gauge if okay, look for spark and injection pulses

Tiny
Rasmataz
Jan 9, 2012.
Spark pulses seemed to be normal. I checked the fuel pressure at the fuel filter and that seemed to be fine, but when I checked the pressure under the hood there was none. Shortly after, I could no longer hear the pump priming when I turned the key. This makes me think that it might be my pump after all?
AD

Tiny
Jjeflar
Jan 17, 2012.
Not too fast -check the fuel pump relay

Tiny
Rasmataz
Jan 17, 2012.
Yeah I checked relay. I can feel it click when the key turns

Tiny
Jjeflar
Jan 18, 2012.
But is it transfering power?

Tiny
Rasmataz
Jan 18, 2012.
What is the best way to check for that?

Tiny
Jjeflar
Jan 18, 2012.

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