Heater not working

2002 CHEVROLET TRAILBLAZER
182,866 MILES • 4.2L • 6 CYL • 4WD • AUTOMATIC
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C.SMITH23
  • MEMBER
  • 1 POST
Heat comes and goes, new clutch fan and water pump, thermostat. was thinking climate control?
Aug 28, 2017 at 9:25 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,616 POSTS
It sounds like you have a blend door actuator that has gone bad.

Here is a guide that will help you:

https://www.2carpros.com/articles/replace-blend-door-motor

Please let us know what happens.

Cheers, Ken
Aug 30, 2017 at 4:45 AM
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