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3.8L Series 2 heat-soak

Tiny
KASMIR
  • MEMBER
  • 1995 OLDSMOBILE 88
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 105,000 MILES
1995 Olds 88 with 3.8L series II engine: engine kills (no spark) after thorough warm-up or will not restart after heat-soak (turned off 20 mins after running). Needs 6 hours cooling to restart. Could a bad cam position sensor do this? It is NOT: cranshaft position sensor, engine control module, ignition control module, coil packs or MAF sensor. Voltage at ICM pink wire (12V power) is good.
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Tuesday, April 12th, 2011 AT 3:39 AM

2 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Bad cam sensor should set a code
check for codes and if any, repair as needed 1st
check if have security system light on and or flashing
if all ok
suspect mem-cal inside PCM
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Tuesday, April 12th, 2011 AT 11:19 AM
Tiny
KASMIR
  • MEMBER
  • 2 POSTS
Check Engine Light does not come on after engine dies. Since the engine block is the slowest thing to cool off, I wondered if the cam sensor might be the culprit. Is it capable of killing engine?
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Friday, April 15th, 2011 AT 2:29 AM

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