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Start it while it is warm it will start and immediately stall

Tiny
MACSON45
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 120,035 MILES
If my engine is cold it starts right up and runs great. If I try to start it while it is warm it will start and immediately die. To get it started I half to crank until it starts then throttle it up for approx. 3-5 seconds then it usually stays running. Is this a fuel injector issue, or where should I start.
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Wednesday, August 5th, 2009 AT 5:56 AM

1 Reply

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

It sounds like you may be having a fuel pressure issue. You might have a weak or failing fuel pump that is not providing adequate fuel pressure causing this issue. I would first suggest performing a fuel pressure test. Here is a tutorial showing what is involved for a fuel pressure test:

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

If you don't have access to a fuel pressure tester most auto parts store have a tool loaner program and can rent you one. The fuel pressure specification for your Grand Am is 41-47 PSI. with the key on. Hope this helps and thanks for using 2CarPros.
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Wednesday, August 25th, 2021 AT 10:54 PM

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