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Username Post: 2001 Silverado AC & Heater control switch        (Topic#347637)
Larry E 
Silver Supporting Member
Posts: 82
Larry E
Loc: Los Angeles
Reg: 09-15-16
10-12-17 07:03 AM - Post#2710616    

Hey guys,
I have a 2001 Silverado AC & Heater control switch problem. The knob to switch the air to the upper vents/floor/defrost does not work.
I first tried changing the actuator, no luck. Than I changed the Climate Control Module ( DormanĀ® 599-266 - Remanufactured ). Still no luck. Sometimes it changes and sometimes it doesn't . Don't know what else it could be. Anyone have any tips on this issue. Thanks

Posts: 326
Loc: North Carolina
Reg: 01-10-05
10-16-17 03:14 PM - Post#2711045    
    In response to Larry E

I don't have a solution, Larry. The fully "automatic" climate control has a procedure for reprogramming and can need it again from time to time...but, I'm assuming that yours is basically manual(?). If there are any sensors related to "automatic" climate control involved, it may be worthwhile to pursue finding the method for a reset. ...sorry I can be of more help. Mc

McLeod -- 1999 Tahoe LT, '03 2500HD Ext. Cab.

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