Heater motor stops blowing?

1992 PONTIAC SUNBIRD
135,000 MILES • 4 CYL • FWD • AUTOMATIC
Avatar
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
1992 Pontiac Sunbird 2.0l mileage: 135,000. All of a sudden the heater motor stops blowing. I ran a hot wire to it and it works, fuses good, grounds good. All I can figure is the switch. Anything I might have missed? I'm an old VW'er we never have these problems, but my wife wants to be warm.
Oct 19, 2010 at 11:13 PM
Advertisement
Avatar
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
In the heater duct there is a resistor for different fan speeds, which may have failed. Also, check the blow fan relay.
Oct 19, 2010 at 11:14 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.