Harsh Forward & Reverse
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2002 Lincoln Navigator, 2002 Ford Expedition, 2001 Lincoln Navigator, 2001 Ford RV Cutaway, and 2001 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
High line pressure, valve body bolts improperly torqued, EPC solenoid stuck, valve body components (engagement control valve), incorrect main control valve body or separator plate installed and pump assembly (main regulator/booster valve).