One problem related to defogger has been reported for the 2001 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Ford F-150 based on all problems reported for the 2001 F-150.
Blend door failure, I do not have the ability to control my heat / cool settings. One day it worked and now it does not. The dealership wants $800 to fix the problem.