Electrical problem with air conditioning

2002 PONTIAC GRAND PRIX
132,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
SUNSONME
  • MEMBER
  • 1 POST
Automatic lights, A/C and A/C Blower motor only working occaisonally (2002 Pontiac GT 3800)
Feb 16, 2011 at 7:34 PM
Advertisement
Avatar
JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
When the problem is ongoing, I'd have to check voltage and ground at the blower motor connector. Terminal A is voltage, Terminal B is ground. Tap on the side of blower motor?

I have seen faulty blower motors that would work intermittently.

Apr 15, 2011 at 5:18 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.