Front blower motor works intermittently

Tiny
PERRY D. STAFFORD JR
  • MEMBER
  • 2011 FORD EXPEDITION
  • V8
  • 2WD
  • AUTOMATIC
  • 171,500 MILES
I replaced the blower motor but fan decides to work when it wants to.
Sunday, July 1st, 2018 AT 5:21 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I am Danny.

It sounds like you are having an issue with either the blower motor relays(2) or the blower motor resistors(2). I have attached a few pictures of what they look like and a tutorial on how to test a relay. If you want to test these yourself I can send you a few test diagrams. Hope this helps and let me know if you have any further questions.
Danny-

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
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Monday, July 2nd, 2018 AT 2:58 AM

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