I just picked up a 98 grand Prix. Its pretty rough but has potential I think. And i got it cheap.
Anyways I can hear the blower motor running and have taken it out and checked it. It works just fine. Looking at the fins it spins counter clockwise and according to the arrow on it its moving in the right direction.
The black vaccum line coming from the motor has vacuum. There is less vacuum that comes out to the purple line but there is some. But i have felt the other lines and there is none going to the different flap/doors.
I didn't know if the electronic heater controls go out or if there is something else that is more common.
Also, the little air coming out is not that warm so i don't think the flap/door to the heater core is opening.
If anybody has any ideas i would appriciate it.