Timing Concerns - Erratic/Hunting (Some/All)

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 - TIMING CONCERNS - ERRATIC/HUNTING

Possible Component	Reference/Action
212 - ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, transmission internal harness, shift pressure control solenoids SSPC-A, SSPC-B, SSPC-C, SSPC-D, SSPC-E, line pressure control solenoids PC-A, TSS/Intermediate shaft speed sensor, Output Shaft Speed (OSS) sensor, Transmission Range (TR position) sensor, Transmission Fluid Temperature (TFT) sensor, tow/haul switch. Accelerator Pedal Position (APP) sensor, Brake Pedal Position (BPP) sensor	Carry out on-board diagnostic tests. Refer to the appropriate INTRODUCTION article for diagnosis and testing of the PCM, APP, and BPP sensors.
FMEM enabled, refer to TRANSMISSION FAILURE MODE EFFECTS MANAGEMENT CHART .	Go To PINPOINT TEST A: CONTROL SOLENOIDS , Go To PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR , Go To PINPOINT TEST C: TRANSMISSION RANGE (TR) POSITION SENSOR , Go To PINPOINT TEST D: TURBINE SHAFT SPEED (TSS), INTERMEDIATE SHAFT SPEED, AND OUTPUT SHAFT SPEED (OSS) SENSORS and Go To PINPOINT TEST E: PC-A (LINE PRESSURE) SOLENOID .
	Repair as necessary. Clear DTCs, road test and rerun on-board diagnostic test.
Fluid
Incorrect level	Adjust to the correct level. Refer to PRELIMINARY INSPECTION .
Carry out Fluid Condition Check. Refer to PRELIMINARY INSPECTION .
Incorrect Pressures
High/low pressures	Check pressure at line tap.
Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES .
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.
Solenoid(s) damaged, stuck or bore damaged, manual valve damaged, stuck or bore damaged	If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
Further Diagnosis
For further diagnosis for timing issues, refer to Reference/Actions	Refer to the following routine(s) for specific diagnosis: Soft/Slipping 1-2 Shift, Routine 226 Soft/Slipping 2-3 Shift, Routine 227 Soft/Slipping 3-5 Shift, Routine 228 Soft/Slipping 4-6 Shift, Routine 229 Soft/Slipping 5-6 Shift, Routine 230 Soft/Slipping 6-5 Shift, Routine 231 Soft/Slipping 6-4 Shift, Routine 232 Soft/Slipping 5-3 Shift, Routine 233 Soft/Slipping 3-2 Shift, Routine 234 Soft/Slipping 2-1 Shift, Routine 235 Harsh 1-2 Shift, Routine 236 Harsh 2-3 Shift, Routine 237 Harsh 3-5 Shift, Routine 238 Harsh 4-6 Shift, Routine 239 Harsh 5-6 Shift, Routine 240 Harsh 6-5 Shift, Routine 241 Harsh 6-4 Shift, Routine 242 Harsh 5-3 Shift, Routine 243 Harsh 3-2 Shift, Routine 244 Harsh 2-1 Shift, Routine 245
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 pocket damaged	Inspect for damage. Install a new pump assembly.
Control valves, springs, or seal damaged, stuck or not assembled correctly	Inspect for damage. Install a new seal or pump assembly.
Coast Clutch Assembly
Seals, piston damaged	Inspect for damage. Repair as necessary.
Check ball damaged, missing, not seating, off location	Inspect for mislocation, poor seating, damage. Install a new drum.
Friction elements damaged or worn	Inspect for damage. Repair as necessary.
Return springs damaged	Inspect for damage. Repair as necessary.
Overdrive 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 pump assembly if damaged.
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.
Direct 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.
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.
Intermediate 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 center support assembly if damaged.
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.
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 transmission case if damaged.
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.