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1990 Chevy Truck Fuel Troubles

Tiny
MANGLER
  • MEMBER
  • 1990 CHEVROLET TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 16,000 MILES
My engine turns over but no fuel mist enters throttle body (carb). I cracked open fuel lines at the back of the carb and turn over engine and fuel is present. Re-tighten lines and turn over again but no mist at TB injectors.( Into carb ). During all this I can hear elec. Fuel pump working loud and clear. I decide to pour raw gas into throttle body. Engine finally fires after few tries of turning over. Do I Have A Bad Fuel Pump? This is not the first time I've had this problem. I have also changed fuel filter couple months ago. Please help me understand. Thank You. Engine is 454 SS.
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Thursday, March 11th, 2010 AT 6:17 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure if its within specs if okay

Fuel injectors not spraying fuel could mean power to the injectors or a problem with the computer ground drivers circuits for the injectors also a missing ignition reference input signal to the computer in order to synchronize the injectors
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Thursday, March 11th, 2010 AT 10:32 PM

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