2005 Chevy Impala Over Heating

2005 CHEVROLET IMPALA
114,000 MILES • 6 CYL • FWD • AUTOMATIC
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BSTOUDT85
  • MEMBER
  • 1 POST
I noticed my car is over heating only whenever I sit to idle. It is fine until I start to drive. It's been overheating lately, and it flys up. It slowly goes down when I turn the heat on. What could this be?
Jun 14, 2009 at 1:42 PM
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RENAUDTN
  • ✓Experienced Mechanic
  • 636 POSTS
Start by making sure you have enough coolant (with engine off and COLD, your level is at/slightly above the cold mark on the overflow tank, and no lower than the bottom of the radiator neck). If your level is low, add dexcool coolant and inspect the cooling system for leaks.
I would also replace the thermostat as a lot of cooling problems are associated with a bad thermostat. There are more potential culprits, but try that first and come back if it fails to fix your problem.
Jan 31, 2019 at 10:43 AM
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