Eddybilt, I'm feeling the same pains you went through, only I am dealing with the difficulty that my dealer doesn't want to diagnose due to the presence of an aftermarket subwoofer wire that the previous owner installed. The killer is that my 04 4.4 still has 3 months of factory warranty on it and they won't honor it with that wire still hooked up.

I noticed my climate control makes a whining noise when the temp/air is turned on. I wonder if I have a similar issue. I've used my car only 2x in the last month and the rest of the time it's been a 5000lbs paper weight in my driveway. It's making me miserable.