Pontiac Repair: 2005 Pontiac Grandprix, grandprix 3, best guess

Question
I have a 2005 Pontiac Grandprix, 3.8 V6.  The heat is not working and I changed the Blowermotor and it still isn't working!  What else could it be?

Thanks,
Nichole

Answer
Hi Nichole:

I'll assume when you say heat isn't working there is no air flow and that's why you replaced the blower motor??  If that's the case and the motor still doesn't work checkto make sure none of the HVAC fuses are blown if not the next best "guess" would be the blower motor control module. It's located next to the motor in the bottom of the heater case. those would go quite often back then. either no fan at all or the fan would continue to run with the car off. both of those were issues with the control module being bad. Good Luck :0