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Wont restart after engine is warmed up

Tiny
KHKELSO
  • MEMBER
  • 1995 OLDSMOBILE CIERA
  • 3.1L
  • 6 CYL
  • AUTOMATIC
  • 112,000 MILES
The car starts when its cold runs good but if I turn it off after the engine has warmed up it wont start again until the engine cools off again. It has new fuel pump and filter and ignition control module. Someone said its not getting any fire. What do I need to check next?
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Tuesday, February 25th, 2014 AT 11:06 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If the problem is temp related, check the coolant temp sensor. When problem is ongoing, if it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. Check for proper fuel pressure. Also, check that the fuel pressure holds for a bit with key off. Check the vacuum line at fuel pressure regulator see if any gas in the vacuum line.
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Tuesday, February 25th, 2014 AT 12:04 PM

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