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Will not start again after warmed up

Tiny
JDEMING
  • MEMBER
  • 1999 PONTIAC BONNEVILLE
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 202,000 MILES
Car starts and runs fine. Then once warmed up, if you shut it off, it just turns over acting like it gets no fuel or no spark. Dealership has changed battery, fuel pump and ignition. Still does the same thing. If you let it sit, it will start the next day.
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Saturday, August 24th, 2019 AT 5:49 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

When it will not start, you need to check for spark and fuel.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Fuel pressure needs to be checked. When it does not start, spray some carburetor cleaner into the air filter and see if it starts and stalls.

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

Spark needs to be checked. If it has no spark, could be a module, coil pack or a crank sensor.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Roy
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Sunday, August 25th, 2019 AT 9:40 AM
Tiny
99BONNIE
  • MEMBER
  • 2 POSTS
Had the same problem it was my fuel pressure regulator, basically it’s “hydro locked” in a sense. Hope this helps.
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Tuesday, December 10th, 2019 AT 7:41 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Thanks for the information.

Roy
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Tuesday, December 10th, 2019 AT 7:44 PM

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