1998 Chevy Blazer

Tiny
TERRY MOLAISON
  • MEMBER
  • 1998 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 132,000 MILES
Won't let the heater come on, stays cool
Tuesday, December 11th, 2007 AT 3:29 PM

1 Reply

Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
First verify that the thermostat in the engine is working properly. Then, check for a restricted heater core. Both heater hoses should get hot if the engine is hot.
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Tuesday, December 11th, 2007 AT 10:19 PM

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