Check wiring diagram to be sure power transistor is before the fan in the power supply diagram.

It could be behind the fan, in which case you would always see max voltage at the fan and downstream voltage would increase to reduce voltage to the motor.

good luck

 

I replaced the blower motor the other day and it fixed the problem. The blower blows air strong and hard like new!!! Actually better than when it was new! If anyone wants pictures let me know or I will post them on my profile/album, etc. Thanks for all of your help. Now I just need to put the glove box back in and I am good!