| 211 - ROUTINE |
| Powertrain Control System |
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- PCM (gasoline engines), Transmission Control Module (TCM) (diesel engines), vehicle wiring harnesses, transmission internal harness, tow/haul switch, Accelerator Pedal Position (APP) sensor, Intake Air Temperature (IAT) sensor, Engine Coolant Temperature (ECT) sensor, Four-Wheel Drive (4WD) switch
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- Carry out On-Board Diagnostic (OBD) tests. Refer to the
INTRODUCTION - GASOLINE MODELS
for diagnosis and testing of the PCM. Repair as necessary. Clear the DTCs, road test and rerun OBD
test.
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| Some Shifts Early/Late Only |
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- If only some shifts are early/late, determine which shift(s) is missing.
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- Refer to the following routine(s) for further Soft/Slipping Shift concerns:
- 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
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| Transmission Fluid |
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| Incorrect Line Pressures |
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- Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES . Follow the pressure diagnosis test as required.
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| Solenoid Body Assembly |
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- Bolts not tightened to specification
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- Tighten to specification.
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- Inspect for damage. If damaged, install a new filter gasket.
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- Solenoid damaged, stuck or bore damaged. Manual valve damaged, stuck or bore damaged
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- If damaged or parts are missing, install a new solenoid body assembly. If misassembled, reassemble correctly.
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| Fluid Pump Assembly |
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- Bolts not tightened to specification
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- Tighten to specification.
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- Inspect for damage. If damaged, install a new gasket.
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- Porosity, cross leaks, cup plug missing, plugged hole
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- Inspect for damage. If damaged, repair as necessary.
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- Pump gears and/or gear pocket damaged
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- Inspect for damage. Install a new pump assembly.
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- Control valves, springs or seals damaged, stuck or not assembled correctly
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- Inspect for damage. Install a new seal or pump assembly.
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| Overdrive (O/D) Clutch Assembly |
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- Inspect for damage. Repair as necessary.
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- Filtered orifice damaged, missing, not seating, off location
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- Inspect for mislocation, poor seating, damage. Install a new pump assembly if damaged.
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- Friction elements damaged or worn
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- Inspect for damage. Repair as necessary.
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- Inspect for damage. Repair as necessary.
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- Snap ring for One-Way Clutch (OWC) and/or return spring not seated or damaged
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- Inspect for damage. Repair as necessary.
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| Intermediate Clutch Assembly |
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- Inspect for damage. Repair as necessary.
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- Filtered orifice damaged, missing, not seating, off location
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- Inspect for mislocation, poor seating, damage. Install a center support assembly if damaged.
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- Friction elements damaged or worn
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- Inspect for damage. Repair as necessary.
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- Inspect for damage. Repair as necessary.
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- Snap ring for OWC
and/or return spring not seated or damaged
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- Inspect for damage. Repair as necessary.
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| Low/Reverse Clutch Assembly |
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- Inspect for damage. Repair as necessary.
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- Filtered orifice damaged, missing, not seating, off location
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- Inspect for mislocation, poor seating, damage. Install a new transmission case if damaged.
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- Friction elements damaged or worn
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- Inspect for damage. Repair as necessary.
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- Inspect for damage. Repair as necessary.
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- Snap ring for OWC
and/or return spring not seated or damaged
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- Inspect for damage. Repair as necessary.
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