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Virtual Wrench
Virtual Wrench, Ford Mechanic
Category: Ford
Satisfied Customers: 14620
Experience:  35 years Master Mechanic
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Expedition: front vents not blowing but rear is 1999 exped

Customer Question

front vents not blowing but rear is 1999 expedition
Submitted: 2 years ago.
Category: Ford
Customer: replied 2 years ago.
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Virtual Wrench replied 2 years ago.
There are 3 things that can cause this starting with fuse #105 in the wiring diagram below, next is the blower relay followed by the blower speed control module. Check the fuse first, then try and swap the relay with another one in the fuse box that has the same pin configuration, and if that doesnt work, it needs the speed controller replaced.
Here is the wiring diagram
Here is the full blown test procedure.
Any questions just let me know.