Fuel pump problems

1999 CHEVROLET LUMINA
179,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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GLENN KAISER
  • MEMBER
  • 1 POST
Car will start but it's starving for gas.
Jan 4, 2021 at 7:36 AM
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DANNY L
  • ASE Certified Mechanic
  • 5,648 POSTS
  • ASE Certified Mechanic
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.
Jan 4, 2021 at 7:19 PM
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