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1996 Pontiac Sunfire Occasional overheating

Tiny
OLD_TIN
  • MEMBER
  • 1996 PONTIAC SUNFIRE
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 278,000 MILES
Car overheats occasionally when driving. Never in Shop. Flushed twice, thermostat changed twice. Still happens. Fan runs. Shop (dealer) says not head gasket. Why is it overheating.
Sunday, November 15th, 2009 AT 1:08 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Take it back to the dealer and have them bleed the cooling system. If you're not physically boiling over could be the coolant temperature sensor misleading you.
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Sunday, November 15th, 2009 AT 3:21 PM
Tiny
OLD_TIN
  • MEMBER
  • 2 POSTS
No boilover. Begining to think the same. Not able to notice actual difference in temp standing over the motor. Need to try one of those fancy infrared temp sensors to verify.
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Monday, November 16th, 2009 AT 9:29 PM

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