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George H.
George H., ASE Certified Technician
Category: Chevy
Satisfied Customers: 18590
Experience:  GM Tech ASE Master Tech 15+ years
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What would cause low fuel pressure besidea fuel pump,

Customer Question

what would cause low fuel pressure besidea fuel pump, filter, and fuel line. I have replaced them all and still have low fuel pressure in a 1999 Chevrolet Tahoe 4wh drive 5.7L Vortec engine.
Submitted: 1 year ago.
Category: Chevy
Expert:  George H. replied 1 year ago.

Hello I will help you with your question,

The fuel pressure regulator is the other part of the system. It's job is to maintain the fuel pressure and increase it when you open the throttle plate to accelerate.

On your truck the regulator is located under the intake manifold on the side of the center injection fuel body.

Please let me know how I can help

Thank you