Isuzu 2000 Trooper Workshop Manual page 282

WHEEL AND TIRE SYSTEM
3E–6
Radial Tire Lead/Pull Correction Chart
Step
1 1. Inflate tires to recommended pressure.
2. Road test vehicle on level uncrowned road.
Was a problem corrected?
2 Switch front tires side to side and road test again.
Was a problem corrected?
3 Did the vehicle lead in same direction?
4 Put tires back in original position and check alignment.
Was a problem corrected?
5 Install known good tire on one front side.
Was a problem corrected?
Typical examples of abnormal tire ahead wear and major
causes:
CAUTION: Similar wear patterns can be caused by
worn suspension parts, misalignment of wheels and
tires, and other suspension related problems.
Spotty wear – wear localized on shoulder sections, and in
an extreme cases, the tire becomes polygonal in shape.
1. Tire or wheel out of round or distorted.
2. Hub or knuckle out of round or distorted.
3. Play in hub bearings or ball joint.
4. Rotating parts out of balance.
Action
Tread wear one-sided.
1. Rotating parts out of balance.
2. Tire or wheel out of round.
3. Hub or knuckle out of round or distorted.
480RW002
Yes
End Go to Step 2
If roughness
results,replace
tires Go to Step 3
Go to Step 4 Go to Step 5
End Go to Step 5
Install a known
good tire in place
of other front tire.
If lead corrected,
Replace tire replace tire
No
480RW003