My car loses heat very quickly while it is idling.

2004 CADILLAC ESCALADE
100,000 MILES
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CADILLAC MAK
  • MEMBER
  • 1 POST
The only way it comes on is if I would apply some gas but it When my car is idling & the heat is on it loses heat. I then would have to step on the gas for a few seconds for the heat to come back, it ongoing. ??would still reoccur. I don't have any problems while I'm driving, only when I'm in park & the ignition is on. Any help would be appreciated, thank you!
Jan 4, 2012 at 2:29 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
That would indicate possible low coolant level or restricted heater core. You might try removing both heater hoses and backflushing the heater core with water pressure.
Jan 4, 2012 at 2:51 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Check for a stuck open thermostat as well.
Jan 4, 2012 at 5:06 AM
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