Five problems related to windshield wiper/washer switch have been reported for the 1999 Ford F-150. The most recently reported issues are listed below.
1999 f150 wipers come on randomly while driving.
Windshield wipers come on randomly especially when making a left turn.
Windshield wipers come on for no aparant reason. My brother in-law has the very same problem with the windsheild wiper switch in 1998 Ford f150.
Windsheild wipers come on for no aparant reason. This is the 5th consecutive Ford product (1994-1999) I have owned to have problems with the windsheild wiper switch!.
I have a 1999 Ford F-150 that leaks around the windshield when it rains it causes the wipers not to work the power acc stay on and the door chime rings once the key is removed from the switch. This is a common problem with this vechile and needs to be recalled.