Yea i have gone thru 6 blower motor resistors in the last 2 months. Works for a couple days than the fan only runs on high. Very annoying considering how cold it is here right now. I take it to the dealer, and thats all they do is change the resistor. Clearly there is something else wrong, what is it?

blower motor drawing to much current.

can also be poor connection at power or ground.

I agree about the blower motor drawing too much current. It is possible that it is seizing up , the one in my Silverado did the same thing BUT the guys at the garage were smart enough to check the blower motor although i wish they didn't.........somewhere around $190 i think it was just for the blower motor assmembly , dealer only item and i have a 2000.