Gas in fuel injector harness

2006 CHEVROLET SILVERADO

140,000 MILES • 4.3L • 6 CYL • 2WD

FREDLV68

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Put in a new spider fuel injection system still getting gas at the top end of the wiring harness plug of the fuel injection. could it be a gasket issue?

May 14, 2022 at 4:05 PM

STRAILER

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Could the gas be back feeding back into the harness from the first injector failure? If not, it sounds like the pressure regulator inside the fuel pump is bad and pushing too much pressure which is bypassing the seals in the injector but to be sure let's check the pressure which can be done by following this guide. Also did you use an AC Delco part?

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Also, I have included now to change out the pump in the diagrams below. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

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Professional Diagram for 2CarPros Members
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May 16, 2022 at 9:22 AM