2007 Chevrolet Impala Heater

Tiny
DIDIK
  • MEMBER
  • 2007 CHEVROLET IMPALA
  • V6
  • FWD
  • AUTOMATIC
  • 100,250 MILES
Impala does not heat when idle. It doesn't therefore heat to defrost car unless driving. Air cools when idling at standstill. Replaced thermostat x2, hoses good, coolant & other fluids good. Have spent $800 plus in 2 visits, but the same. Help. What else do I check?
Saturday, March 21st, 2015 AT 7:31 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,556 POSTS
The only thing that could cause that is if the cooling fans are constantly running or the thermostat is stuck open. Does the temp gauge indicate that the engine is cold when this happens?
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Saturday, March 21st, 2015 AT 10:02 PM
Tiny
DIDIK
  • MEMBER
  • 2 POSTS
No. Temp gage reads fine.
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Sunday, March 22nd, 2015 AT 4:59 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,556 POSTS
If the temp gauge is reading a normal temp (warmed up) and you're not getting heat, when it is happening, feel both heater core hoses and see if both are hot. Let me know what you find.
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Sunday, March 22nd, 2015 AT 10:53 AM

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