Isuzu 1999 RODEO Workshop Manual page 199

WHEEL AND TIRE SYSTEM
3E–6
Tire Rotation
Tire rotation is recommended to equalize wear for longer
tire life.
Legend
(1) Spare Tire
If the following conditions are noted, rotate the tires:
f Front tire wear is different from rear.
f Uneven wear exists across the tread of any tire.
f Left and right front tire wear is unequal.
f Left and right rear tire wear is unequal.
Check wheel alignment if the following conditions are
noted:
f Left and right front tire wear is unequal.
f Wear is uneven across the tread of any front tire.
f Front tire treads have a scuffed appearance with
"feather" edges on one side of the tread ribs or blocks.
Tread Wear Indicators
The original equipment tires have built-in tread wear indi-
cators(1) to show when tires need replacement. These
indicators may appear as wide bands. When the indica-
tors appear in two or more grooves at three locations, tire
replacement is recommended.
Inflation of Tires
480RS002
Tire pressure, in cold condition (after vehicle has set for
three hours or more, and driven less than one mile),
should be checked monthly or before any extended trip.
Tire pressure increases approximately 15% when the
tires become hot during driving. Tire pressure specifica-
tion is shown on the label located on the left door lock pil-
lar.
NOTE: Check the tire pressure whenever irregular wear
is found. Tire inflation greatly affects tire wear. If the
alignment check does not reveal any alignment problems,
check the condition of the shock absorbers and wheel/tire
balance.
Diagnosis List
If the following conditions are noted, rotation is required.
1. Front tire wear is different from rear.
2. Uneven wear exists across the tread of any tire.
3. Left and right front tire wear is unequal.
4. Left and right rear tire wear is unequal.
If the following conditions are noted, check the wheel
alignment.
1. Left and right front tire wear is unequal.
2. Uneven wear exists across the tread of any tire.
3. Front tire treads have scuffed appearance with
"feather" edges on one side of tread ribs or blocks.
4. There is cupping, flat spotting etc.
Higher than recommended pressure can cause:
1. Hard ride.
2. Poor steering stability.
3. Rapid and uneven wear at center of the tread.
Lower than recommended pressure can cause:
1. Tire squeal on turns.
2. Hard steering.
480RS006
3. Rapid and uneven wear on the edges of the tread.
4. Tire rim bruises and rupture.
710RW002