Shift Concern: Feel-Harsh (Some/All)

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

POSSIBLE COMPONENT CHART

Possible Component	Reference/Action
214- ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, shift solenoids A, B, C, pressure control solenoids A, B, C, D, intermediate shaft speed sensor, digital TR sensor, TFT sensor, IAT sensor, VSS input	Carry out On-Board Diagnostic Tests. See INTRODUCTION - CNG, FLEX-FUEL & GASOLINE article for diagnosis and testing of the PCM, IAT and VSS. GO to PINPOINT TEST A , GO to PINPOINT TEST B , GO to PINPOINT TEST D and GO to PINPOINT TEST E . Repair as necessary. Clear DTCs, road test and rerun On-Board Diagnostic Test.
Some Shifts Harsh Only
Some Shifts Harsh Only	If only some of the shifts are harsh, determine which shift(s) is missing. Refer to the following routine(s) for further No Shift concerns: Harsh 1-2 Shift, Routine 232 Harsh 2-3 Shift, Routine 233 Harsh 3-4 Shift, Routine 234 Harsh 4-5 Shift, Routine 274 Harsh 5-4 Shift, Routine 275 Harsh 4-3 Shift, Routine 235 Harsh 3-2 Shift, Routine 236 Harsh 2-1 Shift, Routine 237
Fluid
Incorrect level	Adjust to the correct level. Refer to TRANSMISSION FLUID LEVEL CHECK .
Incorrect Pressures
High/low pressures	Check pressure at line and PC C taps. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
Main Control
Screws not tightened to specification	Tighten to specification.
Separator plate damaged	Inspect for damage. If damaged, install a new separator plate.
Contamination	Disassemble and clean.
Valves, springs damaged, misassembled, missing, stuck or bore damaged	If damaged or parts are missing, install new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transmission damage.
Filter damaged or missing	Inspect for damage. Repair as necessary.
Input Shaft
Damaged	Inspect for damage. Install new as necessary.
Overdrive Servo
Servo retaining screws damaged	Inspect for damage. Repair as necessary.
Seals (piston and cover) damaged	Inspect for damage. Repair as necessary.
Overdrive Band
Band damaged	Inspect for damage. Repair as necessary.
Servo worn or damaged	Inspect for damage. Repair as necessary.
Not adjusted correctly	Inspect for damage. Repair as necessary.
Center Shaft Assembly
Center shaft assembly damaged	Inspect for damage. Repair as necessary.
One-way clutch damaged	Inspect for damage. Repair as necessary.
Center Support
Screw not tightened to specification	Tighten to specification.
Intermediate Servo
Servo retaining screws damaged	Inspect for damage. Repair as necessary.
Seals (piston and cover) damaged	Inspect for damage. Repair as necessary.
Intermediate Band
Band damaged	Inspect for damage. Repair as necessary.
Servo worn or damaged	Inspect for damage. Repair as necessary.
Not adjusted correctly	Inspect for damage. Repair as necessary.
Forward Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Check ball damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new cylinder.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Bronze seal ring on bearing damaged	Inspect for damage. Repair as necessary.
Reverse Servo
Servo retaining screws damaged	Inspect for damage. Repair as necessary.
Seals (piston and cover) damaged	Inspect for damage. Repair as necessary.
Reverse Band
Band damaged	Inspect for damage. Repair as necessary.
Servo worn or damaged	Inspect for damage. Repair as necessary.
Not adjusted correctly	Inspect for damage. Repair as necessary.
Output Shaft
Damaged	Inspect for damage. Install new as necessary.
Case
Damaged	Inspect for damage. Repair as necessary.