1999 Chevy Blazer No Heat

Tiny
CUDA1570
  • MEMBER
  • 1999 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
The heat went out in my wife’s blazer I flushed the system, changed the thermostat, but still no heat what else can I check? Is there a heater control valve some where? If so where? Or is there a relay switch that could have wend out?
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Wednesday, December 12th, 2007 AT 9:00 PM

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Tiny
RASMATAZ
  • MEMBER
Might want to inspect the heeter hose and heater core could be clogged-up, heater control valve is normally attached to the hose-could be an air mix/blend door not opening due to an actuator being defective
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Wednesday, December 12th, 2007 AT 9:05 PM

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