2006 GMC C2500 CONTROLS

Tiny
SCOTT WILLIAMS
  • MEMBER
  • 2006 GMC C2500
  • V8
  • 2WD
  • AUTOMATIC
  • 780,000 MILES
My a/c runs for awhile than all of asudden the heater starts blowing on the driver side. Why?
Thursday, October 14th, 2010 AT 1:15 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Oneof your actuators on theheater box isn't working correctly or the control unit is making it do that. This picture is similarto what you have. they can be electric or vacuum


https://www.2carpros.com/forum/automotive_pictures/406719_actuator_8.jpg

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Tuesday, November 2nd, 2010 AT 5:56 PM

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