Other Concern: No Engine Braking in Manual 4th (D) Position

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

OTHER CONCERN: NO ENGINE BRAKING IN MANUAL 4TH (D) POSITION

Possible Component	Reference/Action
281 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, Shift Solenoid D, Reverse Pressure (RP) switch, Pressure Control Solenoid B	Carry out on-board diagnostic tests. See INTRODUCTION - GASOLINE article for diagnosis and testing of the PCM. GO to PINPOINT TEST A , GO to PINPOINT TEST D . Repair as required. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust fluid to correct level. Refer to TRANSMISSION FLUID LEVEL CHECK in this article.
Main Control
Screws not tightened to specification	Tighten to specification.
Filter damaged, missing	Inspect for damage, repair as necessary.
Separator plate damaged	Inspect for damage. If damaged, install a new separator plate.
Contamination	Disassemble and clean.
Valve/springs damaged, misassembled, missing, stuck or bore damaged Coast Clutch Assembly	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.
Coast 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.