Question about 2005 GMC Sierra 2500HD 4WD
04 GMC 2500HD W/AUTO A/C DRIVER SIDE WORKS FINE - PASS SIDE ONLY HAS HEAT, REGAURDLESS WHERE THE CONTROLS SET, NO COOL AIR ON PASS SIDE.
Your truck has blend door actuators that go bad. each side has them . giving you the problem that you have. and in some cases the actual a/c control mod goes bad. Putting the truck on a scanner at the dealer ship they can look at each blend door and comand each one to open and close and find out witch one is not working. or you can buy the pass side blend door actuator / motor the one for the a/c heat blend door and replace your self its not to bad to get to on pass side. you can have them print you out a diagram when you buy it.
Posted on May 25, 2009
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Posted on Jan 02, 2017
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