Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
Tires show excess wear on the edges of tread	Underinflated tires	ADJUST the tire air pressure. REFER to the vehicle certification (VC) label on the driver door jamb.
	Incorrect tire rotation intervals	ADVISE customer of condition. ROTATE the tires.
	Vehicle overloaded	NOTIFY customer of overloaded condition.
	High-speed cornering	NOTIFY customer of cause of condition.
	Incorrect wheel alignment	CHECK the wheel alignment. ADJUST as necessary. REFER to SUSPENSION SYSTEM-GENERAL INFORMATION .
Tires show excess wear in the center of tread	Tires overinflated	ADJUST the tire air pressure. REFER to the vehicle certification (VC) label on the driver door jamb.
Excessive cupping or dishing of the tire tread	Incorrect tire rotation intervals	ADVISE the customer of the condition. ROTATE the tires.
	Incorrect tire pressure	ADJUST the tire air pressure. REFER to the vehicle certification (VC) label on the driver door jamb.
	Loose or leaking struts/shock absorbers	TIGHTEN or INSTALL new shock absorbers as necessary. REFER to FRONT SUSPENSION for the front suspension or REAR SUSPENSION for the rear suspension.
	Incorrect wheel alignment	CHECK the wheel alignment. ADJUST as necessary. REFER to SUSPENSION SYSTEM-GENERAL INFORMATION .
	Loose, worn or damaged suspension components	INSPECT the front suspension. REPAIR or INSTALL new suspension components as necessary. REFER to FRONT SUSPENSION .
	Wheel and tire assembly out of balance	BALANCE the wheel and tire assembly.
Wobble or shimmy	Loose wheel nuts	TIGHTEN the wheel nuts. REFER to WHEEL AND TIRE .
	Damaged tire	INSTALL a new tire as necessary.
	Bent wheel	INSTALL a new wheel as necessary.
	Damaged wheel bearings	INSTALL new wheel bearings as necessary. REFER to FRONT SUSPENSION for the front suspension or REAR SUSPENSION for the rear suspension.
	Loose or damaged suspension components	INSPECT the front suspension and REPAIR or INSTALL new suspension components as necessary. REFER to FRONT SUSPENSION for the front suspension or REAR SUSPENSION for the rear suspension.
High-speed shake	Tires/wheels Wheel hub face/pilot circle runout Wheel bearings Suspension/steering linkage Engine Transmission Brake disc/imbalance Brake drums/imbalance	REFER to NOISE VIBRATION AND HARSHNESS .
Vehicle vibration	Tires Driveline - engine	REFER to NOISE VIBRATION AND HARSHNESS .