Cause
| Correction
|
DEFINITION: Loss of the transfer case drive torque during deceleration, acceleration
or under load.
Review the
Symptoms - Transfer Case
and
perform the necessary inspections.
|
Broken high/low range shift fork pads
| Replace the high/low range shift fork pads or other damaged components. Refer
to
Transfer Case Disassemble
and
Transfer Case Assemble
.
|
Faulty high/low range shift fork
|
- Inspect the high/low range shift fork for being damaged. Refer to
Transfer Case Cleaning and Inspection
.
- Replace the shift fork if faulty. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
.
|
Faulty high speed teeth on the range sleeve
|
- Inspect for the following conditions:
| • | The input gear high speed engagement teeth for wear or damage |
| • | The engagement teeth on the range sleeve for wear or damage |
- Replace the range sleeve if the teeth are faulty. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
.
- Replace the input gear if the engagement teeth are faulty. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
.
|
High/low range shift fork bushing and springs
|
- Inspect the high/low range shift fork springs for being faulty.
- Inspect the range fork shaft bushing for wear.
Refer to
Transfer Case Cleaning and Inspection
.
- Replace the high/low range shift fork if the springs or bushings are faulty.
Refer to
Transfer Case Assemble
.
|
High/low planetary carrier
|
- Inspect the high/low planetary carrier for the following conditions:
| • | Low speed engagement teeth worn or damaged |
| • | Cracked carrier housing |
| • | Pinion gear worn or out of position |
| • | Pinion gears broken or damaged teeth |
- Replace the high/low planetary carrier if any of the above conditions
are found. Refer to
Transfer Case Disassemble
and
Transfer Case Assemble
.
|
2/4 Wheel drive synchronizer gear
|
- Inspect the 2/4 wheel drive synchronizer gear for worn engagement
teeth.
- Replace the synchronizer gear if faulty. Refer to
Transfer Case Assemble
.
|
