Fuel pump problems

Tiny
GLENN KAISER
  • MEMBER
  • 1999 CHEVROLET LUMINA
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 179,000 MILES
Car will start but it's starving for gas.
Monday, January 4th, 2021 AT 7:36 AM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

It sounds like you might have a weak or failing fuel pump that is not supplying adequate fuel pressure. first thing to do is perform a fuel pressure test. Most auto parts stores have a tool loaner program and can rent you one if you don't have. Here is a tutorial showing what is involved for performing this test:

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

The correct fuel pressure specification for your Lumina is 48-55 PSI with the key on, engine off. Get back to us with what you find and we'll go from there. You will need to remove the fuel tank to gain access to the in-tank electric fuel pump. Here is a tutorial showing how to replace an in-tank fuel pump:

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

I've attached picture steps below on how to remove and replace both the fuel tank and fuel pump on your car. Hope this helps and thanks for using 2CarPros.
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Monday, January 4th, 2021 AT 7:19 PM

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