Update - heat works, not like i was expecting(output wise) but it works. The control head was replaced and it seems to work. I was refunded all the money I paid for the actuators and labor and got the control head at cost. They left the two actuators they replaced in the truck and will honor...
I just spoke with the dealer, they advised they feel the coolant does not need to be flushed at this time in order to correct the issue. They feel it is the control unit itself that is faulty. They advised that they swapped the old actuators back in and out with the new ones and would get the...
Greetings. I have an 04 Yukon with the auto AC system that has me stumped. It has for the last few weeks warmed up nicely in the driveway before I get in to take my daughter to school and myself to work. However once in gear and driving down the road it will only blow "warm" air out of the...
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