Suzuki Grand Vitara XL-7 Service Manual page 536

DIAGNOSIS TABLE
DIFFERENTIAL ASSEMBLY
Condition
Gear noise
Bearing noise
Oil leakage
2WD/4WD
switching error
DIAGNOSIS
Possible Cause
D Deteriorated or water mixed lubricant
D Inadequate or insufficient lubricant
D Maladjusted backlash between bevel
pinion and gear
D Improper tooth contact in the mesh between
bevel pinion and gear
D Loose bevel gear securing bolts
D Damaged side gear(s) or side pinion(s)
D (Constant noise) Deteriorated or water
mixed lubricant
D (Constant noise) Inadequate or insufficient
lubricant
D (Noise while coasting) Damaged bearing(s)
of bevel pinion
D (Noise while turning) Damaged diff. side
bearing(s) or axle bearing(s)
D Worn or damaged oil seal
D Excessive oil
D Loose differential carrier bolts
D Defective actuator
D Abnormality in 4WD control system
DIFFERENTIAL (FRONT) 7E-5
Correction
Repair and replenish
Repair and replenish
Adjust
Adjust or replace
Replace or retighten
Replace
Repair and replenish
Repair and replenish
Replace
Replace
Replace
Adjust oil level
Replace or retighten
Replace
Inspect referring to "4WD
CONTROL SYSTEM DIAG-
NOSTIC FLOW TABLE".