Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
Tires show excess wear on edge of tread	Underinflated tires.	ADJUST air pressure in tires.
	Vehicle overloaded.	RETURN vehicle - NOTIFY customer of overloaded condition.
	High-speed cornering.	RETURN vehicle - NOTIFY customer of cause of condition.
	Incorrect wheel alignment.	CHECK the wheel alignment. ADJUST as necessary. REFER to WHEEL ALIGNMENT .
	Incorrect tire rotation intervals.	ADVISE customer of condition. ROTATE tires.
Tires show excess wear in center of tread	Tires overinflated.	ADJUST air pressure.
Other excessive tire wear problems	Incorrect tire rotation intervals.	ADVISE customer of condition. ROTATE tires.
	Incorrect tire pressure.	ADJUST pressure.
	Loose or leaking shock absorbers.	TIGHTEN or INSTALL new shock absorbers as necessary.
	Incorrect wheel alignment.	CHECK the wheel alignment. ADJUST as necessary. REFER to WHEEL ALIGNMENT .
	Loose, worn or damaged suspension components.	INSPECT the front suspension and REPAIR or INSTALL new suspension components as necessary. REFER to WHEEL BEARING, HUB, KNUCKLE, UPPER ARM AND LOWER ARM - FRONT , SHOCK ABSORBER AND SPRING ASSEMBLY - Front or STABILIZER BAR AND LINK - FRONT .
	Wheel and tire assembly out of balance.	BALANCE wheel and tire assembly.
	Excessive lateral or radial runout of wheel.	REFER to NOISE, VIBRATION & HARSHNESS .
Wobble or shimmy	Damaged wheel bearings.	REFER to WHEEL BEARING INSPECTION .
	Loose or damaged suspension components.	INSPECT the front suspension and REPAIR or INSTALL new suspension components as necessary. REFER to WHEEL BEARING, HUB, KNUCKLE, UPPER ARM AND LOWER ARM - FRONT , SHOCK ABSORBER AND SPRING ASSEMBLY - Front or STABILIZER BAR AND LINK - FRONT .
	Bent wheel.	INSTALL a new wheel as necessary.
	Damaged tire.	INSTALL a new tire as necessary.
	Loose wheel nuts.	TIGHTEN the wheel nuts. REFER to WHEEL AND TIRE - FRONT or WHEEL AND TIRE - REAR .
High-speed shake	Wheel hub face/pilot/bolt circle runout. Tires/wheels. Wheel bearings. Suspension/steering linkage. Engine. Brake discs/imbalance.	REFER to NOISE, VIBRATION & HARSHNESS .
Vehicle vibration	Driveline - engine. Tires.	REFER to NOISE, VIBRATION & HARSHNESS .