No Forward & No Reverse

WARNING: This page is about a different car, the 2004 Ford RV Cutaway, 2004 Ford Econoline, 2004 Ford E450 Super Duty, and 2004 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC ROUTINE - NO FORWARD & NO REVERSE

Possible Component	Reference/Action
207 - ROUTINE
Powertrain Control System
PCM, external vehicle wiring harnesses, transmission internal harness, line pressure solenoid PC-A	Carry out on-board diagnostic tests. Refer to the appropriate INTRODUCTION article for diagnosis and testing of the PCM.
	Go To PINPOINT TEST E: PC-A (LINE PRESSURE) SOLENOID .
	Repair as required. Clear DTCs, road test and rerun onboard diagnostic test.
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
External Shift Cable
Cable system damaged, misaligned	Inspect and repair as necessary.
Incorrect Pressure
Low pressure	Check pressure at line tap.
Low pressure	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.
PC-A solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged. Line pressure blowoff valve damaged.	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Input Shaft
Shaft damaged	Inspect for damage. Repair as necessary.
Fluid Pump Assembly
Bolts not tightened to specification	Tighten to specification.
Gasket damaged	Inspect for damage. If damaged, install a new gasket.
Porosity, cross leaks, cup plug missing, plugged hole	Inspect for damage. If damaged, repair as necessary.
Pump gears and/or gear pocket damaged	Inspect for damage. If damaged, install a new pump.
Control valves, springs, or seals damaged, stuck or not assembled correctly, skill orifice plugged, LPC air bleed plugged	Inspect for damage. If damaged, install a new seal or pump assembly.
Center Shaft Assembly
Shaft damaged	Inspect for damage. Repair as necessary.
Overdrive one-way clutch damaged	Inspect for damage. Repair as necessary.
Center Support
Feedbolt not tightened to specification	Tighten to specification.
FWD clutch seal rings damaged	Inspect for damage. Repair as necessary.
Support damaged or leaking	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 OWC and/or return spring not seated or damaged	Inspect for damage. Repair as necessary.
Output Shaft
Shaft damaged.	Inspect for damage. Repair as necessary.
Torque Converter
Flexplate, adapter plate, turbine hub or impeller hub damaged	Inspect for damage. Refer to TORQUE CONVERTER DIAGNOSIS . Repair as necessary.