Seems I have the common problem of the blend door or something. My truck is a 2005 GMC Sierra Quad cab. My AC works, but I have the dual climate control and one side will be hot and the other side cool. It doesn't have a problem switching between Defrost, to panel, to floor..It just wont adjust the temp on either side. From what I have read, there are 3 doors of this type in the system? Which could it be? Is there a write up on how to diagnose and fix without taking to stealership?
Driver side blowing hot is the door motor on the bottom in he middle. You will have to take the cover off that is over the blower motor over to the hump. The motor is on the edge of the hump. There are 135 at Oriellys. The easiest thing to do for summertime is just get you 2 heater hose valves and put those in both heater hose lines till you have the money to fix it.
That's also a symptom of low Freon. You have two blend doors that are kinda tough to get to. They're electric so with the key on, engine off, fan on 1 you should be able to hear them move. They usually start clicking when they go bad.
I'd get an evac/recharge done. That's usually cheaper than 1 blend door motor.
I dont think I have a freon problem because it gets very cold...i performed the relearn process using the auto button and now both sides are very cold...now what?
If you got it working then I'd say leave it be. It could have needed just that relearn. But if it craps out again and you decide to replace that blend door motor there is a write up on this page on how to replace it.
Thanks for all the help guys... I am hoping it doesn't happen again, but if it does, I know what to do.. Thanks
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