Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 978

4C1-82  FRONT WHEEL DRIVE

2.  FRONT WHEEL SHIMMY

Checkpoint

Trouble Cause

Countermeasure

Ball joint or bush

Shimmy damper

Replace the ball joint or bush

Replace the shimmy damper

Worn

Worn

Front alignment

Adjust the front alignment

Adjust or replace

Incorrect

Worn or improperly adjusted

OK

OK

NG

NG

NG

NG

OK

OK

Wheel bearing

Shock absorber

Steering gear out of

adjustment

Replace the shock absorber

Tighten or replace

Worn

Incorrect or broken

Tire

Replace or adjust the inflation

Tighten or replace

Worn or improperly inflated

Loose or worn

OK

NG

NG

NG

NO

OK

OK

Steering linkage

FRONT WHEEL DRIVE  4C1-83

4

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4 MODEL

1.  OIL LEAK AT FRONT AXLE

Checkpoint

Trouble Cause

Countermeasure

Front axle housing

Repair or replace

Cracked

Replace the oil seal

Worn or defective oil seal

NG

NG

OK

Oil seal

2.  OIL LEAK AT PINION SHAFT

Oil seal

Replace the oil seal

Worn or defective

Correct the oil level

Too much gear oil

NG

NG

OK

Gear oil level

Pinion flange

Tighten or replace

Loose or damaged

NG

OK

3.  NOISES IN FRONT AXLE DRIVE SHAFT JOINT

Replace the drive shaft joints

and bellows

Broken or worn

NG

Drive shaft joints and bellows

(B.J and DOJ)

4C1-84  FRONT WHEEL DRIVE

4.  NOISES IN FRONT AXLE

Checkpoint

Trouble Cause

Countermeasure

Replenish the gear oil

Insufficient gear oil

NG

Replace the wheel bearing

Replace the pinion shaft

bearing

Replace the ring gear pinion

gear or side gear

Replace the gear oil

Wheel bearing

Worn

Pinion shaft bearing

Worn

Worn or chipped

Wrong or poor grade gear oil

Ring gear, pinion gear or side

gear

Adjust the backlash

Drive pinion to ring gear

backlash

Too much or too little backlash

NG

NG

NG

NG

NG

OK

OK

OK

OK

Oil level

Tighten or replace

Differential bearing

Loose or worn

NG

OK

FRONT WHEEL DRIVE  4C1-85

5.  WANDERS AND PULLS

Checkpoint

Trouble Cause

Countermeasure

Adjust the wheel bearing

preload

Too tight

NG

Tighten or replace

Replace or adjust the inflation

Adjust the steering gear out of

adjustment or replace

Adjust the front alignment

Suspension

Front or rear suspension parts

loose or broken

Tab

Worn or improperly inflated

Incorrect or broken

Front alignment

Incorrect

Steering gear out of

adjustment

Tighten or replace

Steering linkage

Loose or worn

NG

NG

NG

NG

NG

OK

OK

OK

OK

OK

Wheel bearing preload