Harsh Forward Only

WARNING: This page is about a different car, the 2010 Ford Pickup, 2010 Ford F550 Super Duty, 2010 Ford F450 Super Duty, and 2010 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC ROUTINES - HARSH FORWARD ONLY

Possible Component	Reference/Action
204 - ROUTINE
Powertrain Control System
PCM (gasoline engines), Transmission Control Module (TCM) (diesel engines), external vehicle wiring harnesses, transmission internal harness	Carry out On-Board Diagnostic (OBD) tests. Refer to the INTRODUCTION - GASOLINE MODELS for diagnosis and testing of the PCM. Repair as required. Clear the DTCs, road test and rerun OBD test.
Selector Lever Cable
Cable system damaged, misaligned	Inspect and repair as necessary. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
Incorrect Line Pressure
High pressure	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow the pressure diagnosis test as required.
Solenoid Body Assembly
Bolts not tightened to specification	Tighten to specification.
Filter gasket damaged	Inspect for damage. If damaged, install a new filter gasket.
Contamination	Disassemble and clean.
Solenoids damaged, stuck or bore damaged. Manual valve or solenoid damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. Repair as necessary. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. Repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. Repair as necessary. If damaged, install a new pump.
Control valves, springs or seal damaged, stuck or not assembled correctly	Inspect for damage. Repair as necessary. If damaged, install a new seal or pump assembly.
Forward Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Low/Reverse Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Filtered orifice damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new case.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Snap ring for One-Way Clutch (OWC) and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.