Page 377 of 6020
3C-56 FRONT SUSPENSION
Checkpoint Problem Countermeasure
Tire tread (right and left)
Replace (tire)
Difference in wear and tear
Adjust or tighten
Improper or instufficient
tightening
NG
NG
OK
Tire pressure or wheel nuts
Continued from the previous page
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ISUZU KB P190 2007
Page 378 of 6020
FRONT SUSPENSION 3C-57
3. INSTABILITY OF VEHICLE
Checkpoint Problem Countermeasure
Tire pressure
W heel alignment
Rubber bushings for upper
and lower links. (4 × 2 Except
high ride suspension)
Adjust
Adjust
Replace
Incorrect
Incorrect
Worn
Steering linkage and upper
and lower links
Replace
Adjust
W orn or deformed
Incorrect
OK
OK
OK
NG
NG
NG
NG
NG
OK
OK
Vehicle trim height
Road wheel
Adjust
Deformed or unbalanced
NG
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ISUZU KB P190 2007
Page 379 of 6020
3C-58 FRONT SUSPENSION
4. STIFF STEERING WHEEL
Checkpoint Problem Countermeasure
Steering gear box or steering
linkage
Steering linkage
Steering gear
W heel alignment
Replace the part
Replace
Replace
Adjust
Insufficient lubricants or
impurities present; or
excessively worn
Deformed
W orn or damaged
Incorrect
Replace
Stiff or damaged or lack of
grease
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
OK
Upper and ball joint
Steering column with turn
signal switch
Replace
Interference abrasion
NG
Tire pressure
Adjust
Improper
NG
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ISUZU KB P190 2007
Page 380 of 6020
FRONT SUSPENSION 3C-59
5. NOISES
Checkpoint Problem Countermeasure
Lubricating oil and grease for
upper and lower ball joint
Shock absorber
Stabilizer fixing nuts and bolts
Upper and lower links
bushings
Replace
Replace
Retighten
Replace
Insufficient
Faulty
Loose
Worn
Shock absorber fixing nut and
bolt
Retighten
Loose
Continued on the next page OK
OK
OK
OK
NG
NG
NG
NG
NG
OK
Upper and lower ball joint
Replace
Damaged
NG
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ISUZU KB P190 2007
Page 381 of 6020
3C-60 FRONT SUSPENSION
Checkpoint Problem Countermeasure
Steering linkage and steering
gearReplaceWorn
AdjustImproper
OK
NG
NG
OKTire pressure
Continued from the previous page
Steering unit fixing bolts and
linkageRetightenLoose
Adjust or replaceIncorrect adjustment or
abrasion
OK
NG
NG
OKFront wheel bearing
Lubricating oil and grease to
steering linkageReplaceInsufficient
NG
OK
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ISUZU KB P190 2007
Page 382 of 6020
FRONT SUSPENSION 3C-61
6. EXCESSIVE STEERING WHEEL PLAY
Checkpoint Problem Countermeasure
Front wheel bearing
Steering linkage
Adjust or replace
Replace
Incorrect adjustment or
abrasion
Worn
Replace
Worn
NG
NG
NG
OK
OK Upper, and lower links,
bushing (4 × 2 Except high
ride suspension)
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ISUZU KB P190 2007
Page 383 of 6020
3C-62 FRONT SUSPENSION
7. GRATING TIRE NOISE
Checkpoint Problem Countermeasure
Tire pressure
Knuckle spindle and steering
linkage
Adjust
Replace
Improper
Deformed
Suspension fixing boltReplace
Adjust
Loose
Incorrect
OK NG
NG
NG
NG
OK
OKW heel alignment
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ISUZU KB P190 2007
Page 384 of 6020
FRONT SUSPENSION 3C-63
8. EXCESSIVELY OR PARTIALLY WORN TIRE
Checkpoint Problem Countermeasure
Brake adjustment
W heel alignment
Adjust
Adjust
Incorrect
Incorrect
Front wheel bearingReplace
Adjust
Faulty
Improper
OK NG
NG
NG
NG
OK
OKTire pressure
Tire rotationRotate tires at recomended
intervalsNot rotated
OK
NG
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ISUZU KB P190 2007