Front Differential Symptom Diagnosis

WARNING: This page is about a different car, the 2006 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.

FRONT DIFFERENTIAL SYMPTOM DIAGNOSIS CHART

Condition	Possible Cause	Action
Gear noise	Deteriorated or water mixed lubricant	Repair and replenish referring to FRONT DIFFERENTIAL GEAR OIL INSPECTION AND CHANGE : Front.
	Insufficient lubricant	Repair and replenish referring to FRONT DIFFERENTIAL GEAR OIL INSPECTION AND CHANGE : Front.
	Maladjustive backlash between pinion and bevel gear	Adjust referring to FRONT DIFFERENTIAL REASSEMBLY : Front.
	Improper tooth contact in the mesh between pinion and bevel gear	Adjust or replace referring to FRONT DIFFERENTIAL REASSEMBLY : Front.
	Loose bevel gear bolts	Replace or retighten referring to FRONT DIFFERENTIAL REASSEMBLY : Front.
	Damaged differential gear(s) or differential pinion(s)	Inspect referring to FRONT DIFFERENTIAL INSPECTION : Front.
Bearing noise	(Constant noise) Deteriorated or water mixed lubricant	Repair and replenish referring to FRONT DIFFERENTIAL GEAR OIL INSPECTION AND CHANGE : Front.
	(Constant noise) Insufficient lubricant	Repair and replenish referring to FRONT DIFFERENTIAL GEAR OIL INSPECTION AND CHANGE : Front.
	(Noise while coasting) Damaged front and rear bearings of pinion	Inspect referring to FRONT DIFFERENTIAL INSPECTION : Front.
	(Noise while turning) Damaged differential side bearings	Inspect referring to FRONT DIFFERENTIAL INSPECTION : Front.
Oil leakage	Worn or damaged oil seal	Replace referring to FRONT DIFFERENTIAL REASSEMBLY : Front.
	Excessive oil	Adjust oil level referring to FRONT DIFFERENTIAL GEAR OIL INSPECTION AND CHANGE : Front.
	Loose differential carrier cover bolts	Replace or retighten referring to FRONT DIFFERENTIAL REASSEMBLY : Front.
2WD / 4WD shifting error	Abnormality in 4WD control system	Inspect referring to 4WD CONTROL SYSTEM CHECK .