Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello I will help you with your question,
Looks like Dave took the weekend off.
Check at the blower motor connector and see if you have 12 volts to either of the motor connector pins. If nothing there pull the 40 amp heater fuse and see if you have 12 volts to one of the fuse pins.
Let me know what you find and we can work from there
I usually start at the blower connection as it performs several tests at once and when I am not there to take it step by step it saves time. Glad you found that the motor is shorting and blew the fuse replacing the motor is what will be needed or idnetifying the short between the fuse and the motor