Section 01-00: Body Service
1996 F-150, F-250, F-350, F-Super Duty, and Bronco Workshop Manual
CLEANING AND INSPECTION

Drain Holes

Drain holes are located on the underside of each door along the weld line of the inner and outer panels. If these holes become clogged with mud or road tars, water will collect inside the panels and rust the sheet metal from the inside. A sound of sloshing water in a door is an indication of this condition.

Check the drain holes regularly. Clean dirt and foreign material from the drain holes with a punch or screwdriver.