Mechanics

GMC OTHER FUEL PRESSURE PROBLEM

1990 GMC Other • 175,000 miles

Truck runs when gas poured in the tbi. Can hear injectors pulsing. Have plenty of fuel pressure to the tbi but nothing out the injectors or the return line.
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Guest
December 21, 2012.



What is the fuel pressure?
Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.
Post your results here

Wrenchtech
Dec 21, 2012.