2000 Chevy S-10 Fuel Pump

Tiny
MICAWBER
  • MEMBER
  • 2000 CHEVROLET S-10
Engine Mechanical problem
2000 Chevy S-10 4 cyl Automatic 297000 miles

Truck quit at a stop light. Started right up and died for good at next stop light. Don't hear the fuel pump so assume that's the problem. $250 dollars later the new fuel pump not working either. Came with a new type of module (AC Delco pump) that had to be spliced in in place of old one. Did a continuity check on plug and have nothing on the black wire. Can't find a break in the wire as far as I can trace it back. I know it could be the oil sending unit, but the oil pressure climbs as I crank the engine. I don't have a multimeter so I can't check the voltage at the pump.
The tank had just been filled before this happened so I pulled the bed rather than dropping the tank.
Thank you
Wednesday, March 18th, 2009 AT 10:30 PM

3 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Black wsire is the ground and if there is no continuity to ground then fix bad ground. Look on the frame rail for the ground connection
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Thursday, March 19th, 2009 AT 5:54 AM
Tiny
MICAWBER
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Thank you very, very much. As I said, I removed the bed and in so doing disconnected the wiring to pull the bed off. I thought the ground wire I unhooked was only for the lights, and as I hadn't put the bed back on yet hadn't reconnected. Fired right up when I connected it.
I'm a wrencher, not a trouble shooter. Again, thank you.
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Thursday, March 19th, 2009 AT 11:47 AM
Tiny
MASTERTECHTIM
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Awesome
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+1
Friday, March 20th, 2009 AT 5:57 PM

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