Pinpoint Test R : The 4WD System Jumps Out Of Gear: Notes
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation
When the 4WD system engages the user selected mode, that mode should be maintained. If the 4WD system does not stay in the selected mode, systematically check the 4WD system components.
This pinpoint test is intended to diagnose the following:
- IWE vent line(s)
- MSS
- Transfer case