Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 955
REAR AXLE 4B-57
5) Constant Noise
Checkpoint
Trouble Cause
Countermeasure
Replace the rear axle shaft
Bent rear axle shaft
NG
Replace the side bearing
Replace the drive pinion
bearing
Replace the drive pinion and
the ring gear as a set
Replace the drive pinion and
the ring gear as a set
Flat spot on the side bearing
oil seal
Bearing
Flat spot on the drive pinion
Flat spot on the gear teeth
pilot bearing wear
Drive pinion
Flat spot on the drive pinion
gear teeth
Ring gear
Replace the drive pinion and
the ring gear as a set
Worn pinion splines oil seal
NG
NG
NG
NG
NG
OK
OK
OK
Rear axle shaft
4B-58 REAR AXLE
2. VIBRATION
Checkpoint
Trouble Cause
Countermeasure
Replace the rear axle shaft
Bent rear axle shaft
Replace the rear hub bearing
Worn rear hub bearing
OK
Rear axle shaft
NG
NG
Rear hub bearing
REAR AXLE 4B-59
3. OIL LEAKAGE
1) Differential Carrier Leakage
Checkpoint
Trouble Cause
Countermeasure
Correct the oil level
Too much gear oil
NG
Reapply the liquid gasket
and/or tighten the lock nut to
the specified torque
Reapply the liquid gasket
Tighten the bolts to the
specified torque
Replace the oil seal
Ring gear thrust bolt
Loose lock nut and/or liquid
Liquid gasket seal bed
Loose bolts
Oil seal
Worn or defective oil seal
Differential carrier
Clean the air breather
Air breather
Clogged air breather
NG
NG
NG
NG
NG
OK
OK
OK
OK
Gear oil level
4B-60 REAR AXLE
2) Axle Case Leakage
Checkpoint
Trouble Cause
Countermeasure
Tighten the drain plug and/or
replace the gasket(s)
Loose drain plug and/or
defective gasket(s)
NG
Reapply the liquid gasket
Tighten the bolts to the
specified torque
Clean the air breather
Liquid gasket seal bad
Loose bolts
Air breather
Clogged air breather
Differential carrier
Replace the axle case
Axle case
Cracked axle case
NG
NG
NG
NG
OK
OK
OK
Oil filler and drain plug
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