Heater not blowing warm air

Tiny
TMEEKS51
  • MEMBER
  • 2010 CHEVROLET COLORADO
  • 24,500 MILES
When I turn on the heat it blows cool air only. One time it started working about 20 minutes after turning it on
Thursday, January 12th, 2012 AT 3:53 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check to see if both heater hoses are hot when thetruck is warm. If they are thenits an actuator problem. This still should be covered under warranty with the miles and yr you are showing. It could also be the control head.
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Thursday, January 12th, 2012 AT 4:44 PM

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