Diagnosis; Differential Assembly Diagnosis Table; 4Wd Control System Diagnostic Flow Table 7E-3; Notes On System Circuit Inspection - Suzuki GRAND VITARA XL-7 Owner's Manual

Differential Assembly Diagnosis Table

Condition
Gear noise Deteriorated or water mixed lubricant
Inadequate or insufficient lubricant
Maladjusted backlash between bevel pinion and gear
Improper tooth contact in the mesh between bevel pinion
and gear
Loose bevel gear securing bolts
Damaged side gear(s) or side pinion(s)
Bearing noise (Constant noise) Deteriorated or water mixed lubricant
(Constant noise) Inadequate or insufficientlubricant
(Noise while coasting) Damaged bearing(s) of bevel pinion Replace.
(Noise while turning) Damaged differential side bearing(s)
or axle bearing(s)
Oil leakage Worn or damaged oil seal
Excessive oil
Loose differential carrier bolts
2WD/4WD Defective actuator
switching error
Abnormality in 4WD control system
4WD Control System Diagnostic Flow Table
Before performing the trouble diagnosis, check that the transfer and front differential are in good condition and
there is no air leakage from air hoses and the actuator. Refer to "4WD CONTROL SYSTEM INSPECTION" in
this section for air leakage.

Notes on system circuit inspection

• Be sure to read "PRECAUTIONS FOR ELECTRICAL CIRCUIT SERVICE" in Section 0A before circuit
inspection and observe what is written there.
• For system circuit, refer to the figure of "GENERAL DESCRIPTION" in this section.
• For terminal arrangement, refer to "4WD CONTROL CIRCUIT INSPECTION" in this section.

Diagnosis

Possible Cause
DIFFERENTIAL (FRONT) 7E-3
Correction
Repair and replenish.
Repair and replenish.
Adjust.
Adjust or replace.
Replace or retighten.
Replace.
Repair and replenish.
Repair and replenish.
Replace.
Replace.
Adjust oil level.
Replace or retighten.
Replace.
Inspect referring to "4WD
CONTROL SYSTEM DIAG-
NOSTIC FLOW TABLE".