F 550 4WD Super Duty V10-6.8L (2009)
Rear Door Latch: Procedures
Latch Lubrication
1. Open the door.
2. Using a screwdriver, fully close the latch (two clicks).
3. Spray the multi-purpose grease into the opening on the door latch for approximately 5 seconds.
4. Open the latch using either the interior or exterior door handle.
5. Open and close the door several times to circulate the lubricant inside the latch.
6. Wipe off any excess grease.
