Question about 2006 Chevrolet Silverado 2500HD 2WD

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2005 Silverado Z-71 Crew Cab

Occasionally the driver's side A/C starts blowing heat. Turn off the truck and restart it and it works fine. Seems like a really common problem. Nobody has a clue?

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The vents are controlled by and electric actuator. The actuator when it starts to go bad will lose it's base and not know where the gears are to have the vent door open or closed and soon the gears will over run and jam to the open or close. Sorry about the bad news. Best thing to do is turn your a/c system off and everything to the off position before turning the engine off, so when the truck is restarted the system is already in the default and not have to reset it self to know where that actuators are. Good luck. 

Posted on Jun 29, 2009

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