why is the driver's side a/c not working but the rest of the vents blow cold air?

Asked by tmsb Apr 10, 2012 at 02:28 PM about the 2005 GMC Yukon XL Denali 4WD

Question type: Maintenance & Repair

1 Answer
220

Tony answered 12 years ago

its probably your driverside temp actuator. and you might need to reprogram afterwards. try disconnecting the heater control module/control head and plugging it back in and see if it works 1 time then it may be a control head issue..

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