No 3-4 Shift In "D" Position
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2002 Mercury Grand Marquis, 2002 Lincoln Town Car, 2002 Ford Crown Victoria, 2001 Mercury Mountaineer, and 2001 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
Shift linkage, Transmission Range (TR) sensor, forward clutch pressure, direct clutch pressure, line pressure, valve body (3-4 shift valve, solenoid pressure regulator valve, OD servo regulator, 3-4 capacity modulator valve, 1-2 and 2-3 shift valves), incorrectly tightened valve body bolts, Shift Solenoid No. 1 or 2 (SSA or SSB) failure, OD servo cover, OD servo rod and piston cushion spring or seals damaged, No. 2, 4, 7 and/or 9 valve body check balls, blocked valve body solenoid screen, pump assembly, OD band and/or reverse clutch drum assembly, intermediate one-way clutch assembly, forward clutch assembly or input shaft.