One problem related to bumper has been reported for the 2004 Lincoln Navigator. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Lincoln Navigator based on all problems reported for the 2004 Navigator.
Vibration in the front end. Has been in the shop three times. Twice the tires checked and one alignment. Nothing helped. Also the interior lights went out. Bought brand new and has only 6,000 miles. . Also the front bumper has water streaks on it that dealer says is manufacture problem due to no clear coat on it.