1996 Chevy Blazer No Hot Air!

Tiny
SCHMOO02
  • MEMBER
  • 1996 CHEVROLET BLAZER
Heater problem
1996 Chevy Blazer All Wheel Drive Automatic 130000 miles

My blazer has not been able to produce hot air for quite awhile. I live up north in the -40 below region but even after running for an hour I get no hot air blowing out, only cold air.
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Tuesday, January 27th, 2009 AT 8:45 AM

3 Replies

Tiny
JDL
  • EXPERT
Do you use a block heater? Does the engine reach operating temp, are the heater hoses hot?
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Tuesday, January 27th, 2009 AT 9:13 AM
Tiny
SCHMOO02
  • MEMBER
I do use a block heater and it does get to operating temp, but I am not sure about the hoses.
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Tuesday, January 27th, 2009 AT 9:34 AM
Tiny
JDL
  • EXPERT
If one hose is hot and the other isn't, I'd suspect a flow problem through the heater core. The parts book didn't show a heater control valve for your vehicle, but, that is a thought, where applicable.
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Tuesday, January 27th, 2009 AT 1:01 PM

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