Question about 2004 GMC Sierra
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Posted on Jan 02, 2017
you need to change drivers side temp door actuator then disconnect battery for 5 seconds and reconnect after changing the part, turn key on for 60 seconds with touching heater control to allow actuator to program and then it will work.
Posted on Sep 19, 2009
driver temp control door is stuck or motor/coupling for the door is bad - dash has to be taken out to get at a/c unit - i had same problem on buick ultra
Posted on Sep 25, 2009
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