|
Cause
|
Correction
|
|
Inspect for the proper transaxle and gear oil levels prior to performing system diagnosis.
|
|
Low gear oil level
|
Inspect the transfer case for leaks, repair as required. Refer to
Transfer Case Leak Diagnosis
and
Adhesives, Fluids, Lubricants, and Sealers
.
|
|
Incorrect gear oil in the transfer case
|
Replace the gear oil. Refer to
Adhesives, Fluids, Lubricants, and Sealers
.
|
|
Water or contamination within the lubricant
|
Replace the lubricant and flush the transfer case of the contaminated fluid.
|
|
Worn propeller shaft constant velocity joints
|
Replace propeller shaft assembly. Refer to
Propeller Shaft Replacement
.
|
|
Worn or noisy wheel bearings
|
Replace applicable wheel bearings
|
|
Worn axle shaft constant velocity joints
|
Replace the constant velocity joints, as required.
|
|
Worn bearing in the differential assembly
|
Repair or replace the assembly.
|
Bearing noise within the transfer case
|
•
|
A grinding noise that occurs at a specific engine speed, regardless of transmission gear, is not within the transfer case.
|
|
•
|
A grinding noise that changes as a transmission shift occurs is not within the transfer case.
|
|
•
|
A grinding noise that changes as vehicle speed changes may be also caused by worn wheel bearings.
|
|
•
|
A grinding noise that changes as the vehicle turns may also be caused by worn wheel bearings and/or tires.
|
|
|
1.
|
Inspect for the proper fluid level. Fill, as required.
|
|
2.
|
Identify the location of the noise using the
J 39570
Chassis Ears.
|
|
3.
|
If the noise continues, repair or replace components, as required.
|
|
Gear set whine noise within the transfer case
|
•
|
A whine noise that occurs at a specific engine speed, regardless of transmission gear, is not within the transfer case.
|
|
•
|
A whine noise that changes as a transmission shift occurs is not within the transfer case.
|
|
•
|
A whine noise that changes as vehicle speed changes may be also caused by worn wheel bearings.
|
|
•
|
A whine noise that changes as the vehicle turns may also be caused by worn wheel bearings and/or tires.
|
|
|
1.
|
Inspect for the proper fluid level. Fill, as required.
|
|
2.
|
Identify the location of the noise using the
J 39570
Chassis Ears.
|
|
3.
|
If the noise continues, repair or replace components, as required.
|
|
