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Heater fan only works on high

Tiny
ZETAMOON
  • MEMBER
  • 2000 FORD F-350
  • V8
  • 4WD
  • AUTOMATIC
  • 20,000 MILES
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?
Saturday, October 4th, 2008 AT 5:37 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 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



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Saturday, October 4th, 2008 AT 5:57 PM

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