heater fan only works on high

2000 FORD F-350
20,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
ZETAMOON
  • MEMBER
  • 1 POST
My heater fan only works on high. Also squeals every once in awhile when turned on. My question is how do I replace it. Is it done from the engine compartment or the under the dash. Does the dash have to be removed?
Oct 4, 2008 at 5:37 PM
Advertisement
Avatar
MERLIN2021
  • CERTIFIED EXPERT
  • 17,250 POSTS
It is probably a bad blower resistor, but if the fan is noisy, it may need replacement as well. Both are under the hood, look for #1, that's the resistor.


https://www.2carpros.com/forum/automotive_pictures/62217_resis_1.jpg

Oct 4, 2008 at 5:57 PM