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No heat from heater

Tiny
AMUNN
  • MEMBER
  • 2004 CHEVROLET COLORADO
  • 4 CYL
  • AUTOMATIC
  • 122,000 MILES
Thermostat has been changed heater core flushed out antifreeze is full what can it be? Is there a wire or a fuse I should be checking? The blower works just blows cold air.
Saturday, November 5th, 2016 AT 12:55 PM

3 Replies

Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
There is a cable that controls the temperature door. Remove the glove box and the climate control assembly. Verify the cable did not come off the retaining clips.
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Saturday, November 5th, 2016 AT 2:15 PM
Tiny
AMUNN
  • MEMBER
  • 2 POSTS
I will try that next thank you.
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Saturday, November 5th, 2016 AT 2:34 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,512 POSTS
Hey AMUNN,

This sounds like you have one of two things going on, first you may have a blend door actuator that is not working, next you could just need the climate control reset, Pull the fuse for the climate control for 5 mins to see if that fixes it, if not here is a guide for the blend door actuator.

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

Please let us know what you find so it will help others.

Best, Ken

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Monday, November 7th, 2016 AT 10:01 AM

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