Harsh Shift D to R

Check	Causes
DEFINITION: Gear engagement that is harsh when the engine is idling in Park or Neutral, and the gear selector is moved to Drive or Reverse range.
Forward Clutch	Damaged or worn piston (436) Damaged or worn clutch plates (449) Damaged or stuck ball check valve (434)
Reverse Clutch	Damaged or worn piston (404) Damaged or worn clutch plates (418/417) Damaged or stuck ball check valve (403)
Fluid Pump Assembly	Refer to Harsh Shift 4 to 5, or 5 to 4 .
PC Solenoid	Damaged