Engagement Concern: Harsh Forward And No Reverse

DIAGNOSTIC ROUTINES - ENGAGEMENT CONCERN: HARSH FORWARD AND NO REVERSE

Possible Component	Reference/Action
208 - ELECTRICAL ROUTINE
Powertrain Control System
Electrical Inputs/Outputs, Vehicle Wiring Harnesses, Powertrain Control Module (PCM), TP, MAF, OSS, IAT, PSP, TFT, Digital TR Sensor, Internal Harness, EPC Solenoid, Engine RPM, ISC	Run On-Board Diagnostic. See INTRODUCTION - GASOLINE article for diagnosis. GO to PINPOINT TEST B , GO to PINPOINT TEST D and GO to PINPOINT TEST E . Refer to PINPOINT TESTS - NON OSC EQUIPPED VEHICLE .
308 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level	Adjust the fluid to the correct level.
Incorrect Pressures
Line Pressure, EPC Pressure - high	Carry out Line Pressure Tests. Refer to SPECIAL TESTING PROCEDURES . Check pressure at line and EPC taps. See the LINE PRESSURE CHART for specification. If pressures are low, refer to the LINE PRESSURE DIAGNOSIS CHART .
Main Controls
Bolts out of torque specification	Tighten bolts to specification.
Gaskets and Separator - damaged, off location	Inspect for damage. Install a new as required.
Bl, B4 Check Ball, Pressure Failsafe Valve, Main Regulator Valve - stuck, damaged, missing	Inspect for damage. Install a new as required.
Line Modulator Valve - stuck open	Inspect for damage. Repair as required.
Pump Assembly
Bolts out of torque specification	Tighten bolts to specification.
Gaskets - damaged, off location	Inspect for damage. Install new as required.
Components - damaged	Inspect for damage. Install new as required.
EPC Solenoid - stuck, damaged	Inspect for damage and contamination. Repair as required. Activate solenoid using Transmission Tester. If solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage. Install a new as required.
Forward Clutch Assembly
Seals, Piston - worn, damaged	Inspect for damage. Install a new as required.
Friction Elements - damaged, worn	Inspect for damage. Install new as required.
Check Ball - missing	Inspect for damage. Install new as required.