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