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1988 Chevy S-10 Won't start

Tiny
BRADV
  • MEMBER
  • 1988 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 132,000 MILES
I have a 2.5L 4 cyl. While turning the engine over the injector won't spray fuel. You can add a little gas to the carb. And it will start right away and spray normally and run good.
Thursday, December 27th, 2007 AT 10:56 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What you need to do here is 1st check the fuel pump and oil pump pressure sending unit. The fuel pump relay is energized by the computer for 2 secs to prime the fuel system at which time while engine is being crank oil pressure is being build-up this causes the FP/Oil pressure sending unit to close and power the fuel pump continously while engine is running.


https://www.2carpros.com/forum/automotive_pictures/12900_oil_sending_unit_and_fuel_pump_circuit_25.gif

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Thursday, December 27th, 2007 AT 11:57 AM

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