Why do I only have heat in the rear of truck and.

Tiny
DAVE48813
  • MEMBER
  • 2003 CHEVROLET TRAILBLAZER
  • 120,000 MILES
Why do I only have heat in the rear of truck and not in front of truck
Wednesday, January 23rd, 2013 AT 5:16 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Your temp actuators may not be working, first start truck and pull out hvac fuse for 60 seconds, this n reinstall it that may recalibrate the actuators. Tha tmy take another 60 seconds, then see if they are getting power. I've sent a drawing of one of them
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Wednesday, January 23rd, 2013 AT 6:40 PM
Tiny
DAVE48813
  • MEMBER
  • 2 POSTS
I got the blower to start working but now it wont shut off. I blower still runs with the truck turned off.
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Wednesday, January 23rd, 2013 AT 10:41 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You may need a new harness and resistor the harness goes to the resistor the wires melt together an dcause that
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Wednesday, January 23rd, 2013 AT 11:42 PM

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