Hi. First off: I'm new here, but I'm not really a newbie GPer (used to post at GPONA). I'm an "advanced amateur" when it comes to fixing stuff of this car.
Anyway, onto my problem. I noticed on my way home that my HVAC blower was actiing a bit strange (2004 GP GT). It wasn't wildly flucutating, but the speed of the fan was varying a little. I stopped the car for a few minutes, and then upon re-starting my trip, the fan was totally inoperable....nothing at any speed (no matter if A/C on/off...I know, that doesn't matter).
I opened up the vent on top (where the cabing filter goes), and the blower fan spins freely. I then open the "kickplate" shield in the passenger footwell to access the fan from below. I pulled the electrical connector, and tested the output with a multi-meter. I can't remember / didn't write down the values, but power was flowing (both voltage and current increased as the fan speed was turned to a higher and higher selection). Again, I'm not sure if there are particular power specs that should be reaching the fan, so all I know is that power was going to the unit, and turning up the dial did turn up the "juice".
My initial suspects were fuse (checked it first....OK), blower motor (main suspect), and blower resistor (not sure if the GP has this problem, but two other GM cars that I had of similar age went throught those things all the time). The power going to the motor suggest that it is simply the motor that is dead....at least to my less-than-expert eyes.
Any thoughts? Do you think I'm on the right track?
If it is the blower motor, does it simply unbolt and come out from below, or do you have to remove more of the dash to get it out. It looks like it will come out without too much hassle, but you never know.
Thanks!