One problem related to window regulator failed has been reported for the 2003 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Ford F-150 based on all problems reported for the 2003 F-150.
Passenger window regulator failure on 2003(2004 body style) f150 lariat. Regulator failed on road trip in 95 plus degree weather in eastern nc on June 26, 2010. This is the second one.