Will not start no fuel going to the injectors

Tiny
BULLITT1939
  • MEMBER
  • 1988 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 4WD
  • 85,000 MILES
Car will not start. We have spark just cannot get injectors to spray. Fuel pump is working we are getting fuel to throttle body. Changed ignition control module, injectors, and throttle body injector plugs. Can pour gas in throttle body and it will run. Changed distributor cap and rotor. Any other suggestions?

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Sunday, January 22nd, 2017 AT 8:25 AM

7 Replies

Tiny
HMAC300
  • EXPERT
Fuel pressure should be 9-11 psi no lower. Scan for codes. If spark is not right injectors will not work. Check coolant sensor should be high resistance cold and goes to about 700 ohms when engine is heated up. Check resistance of pick up coil in dist. 400-1000 ohms. See pictures as well.
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Sunday, January 22nd, 2017 AT 8:40 AM
Tiny
BULLITT1939
  • MEMBER
We are at our camp so we are limited to tools. We do not have a fuel pressure gauge with us or noid light with us. We have a meter and we have power to the injectors 6 volts. If we pull the fuel at the filter the gas rushes out with key turn. We are getting fuel to the throttle body.
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Sunday, January 22nd, 2017 AT 8:59 AM
Tiny
HMAC300
  • EXPERT
Itmay be the injector is bad then but I wouldn't spend money on a tbi unit until it's checked out further. Also the wires on those would loose contact at injector and not work.
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Sunday, January 22nd, 2017 AT 12:55 PM
Tiny
BULLITT1939
  • MEMBER
I do believe the fuel pump was the issue. It was pumping just didn't have enough pressure. We basically changed most of the fuel system and a did few other maintance things while we had some things taken apart and she is running better than I ever remember. My dad would be proud it is up and running again!
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Sunday, January 22nd, 2017 AT 8:56 PM
Tiny
KEN
  • ADMIN
That is good to hear Im sure he would be too. So is the truck running again?

Best, Ken
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Wednesday, January 25th, 2017 AT 9:24 AM
Tiny
BULLITT1939
  • MEMBER
Yes it is running better than I ever remember. I think it was the fuel pump that was the issue. However, we changed out most of the fuel system as well.
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Wednesday, January 25th, 2017 AT 9:31 AM
Tiny
KEN
  • ADMIN
Great to hear, Please use 2Carpros anytime Hmac300 is one of our best!
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Thursday, January 26th, 2017 AT 7:37 AM

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