Fan Control...???
Thread Starter
|
Junior User
Joined: Dec 2010
Posts: 81
Likes: 0
From: Twin Cities, MN
Fan Control...???
Here's my issue: When selecting the fan control from Defrost to any other setting there is no change in airflow. Regardless of the selector position the airflow only will come out of the Defrost vents. 
Any suggestions on how to fix this would be appreciated.
Aaron
Any suggestions on how to fix this would be appreciated.
Aaron
Token Redneck
Joined: Jun 2007
Posts: 9,335
Likes: 343
From: Breckenridge, TX
Vacuum leak somewhere. If it's all the time it could be an unplugged vac line on the heater valve or a dead pump, if it's intermittent or tied to using 4x4 it could be a leaking hub seal, broken hub line, or a bad pulse lock solenoid.
https://www.ford-trucks.com/forums/1...l#post11311531
https://www.ford-trucks.com/forums/1...n-defrost.html
https://www.ford-trucks.com/forums/1...l#post11120913
https://www.ford-trucks.com/forums/1...l#post11311531
https://www.ford-trucks.com/forums/1...n-defrost.html
https://www.ford-trucks.com/forums/1...l#post11120913
Thread
Thread Starter
Forum
Replies
Last Post
johnfl
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
3
Feb 19, 2010 08:35 AM
preppypyro
1999 - 2003 7.3L Power Stroke Diesel
36
Aug 18, 2009 10:07 PM
