2003 CHEVROLET MONTE CARLO
150,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
Is the heater switch need replaced if it only works on high- or is it resistor?
Dec 16, 2012 at 12:07 AM
Advertisement
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Sounds like the blower motor resistor-see below

Image (Click to enlarge)
Attached Media
Dec 16, 2012 at 12:18 AM