Heater only works on speed 5?

Tiny
BIGDAWGX2005
  • MEMBER
  • 2003 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
My blower for the heat and air only works when its turned onto level 5. Any ideas?
Saturday, April 17th, 2010 AT 10:24 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Your blower motor speed resistor is bad. Its' mounted in a hard place by the blower motor and is about $50. It's a little square electronic thing. You'll have to get a test light and test the wires by the resistor to see if it is getting power if it is then it's probably bad as the blower works. Here is the location is the resistor.
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Saturday, April 17th, 2010 AT 11:51 AM

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