Heater intermittently blows cold and hot air.

Tiny
ANONYMOUS
  • 2004 CHEVROLET SUBURBAN
  • 124,000 MILES

Heater intermittently blows cold and hot air when heater set to on. Rear blows only cold.

Wednesday, January 2nd, 2013 AT 3:39 PM

1 Reply

Tiny
HMAC300
  • EXPERT
  • 47,000 POSTS

Try pulling hvac fuse first for 60 seconds it may be an actuator needs resetting, check coolant level as well and if heat is going to both hoses first.

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Wednesday, January 2nd, 2013 AT 4:29 PM

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