Symptom Chart - Tire Wear

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For suspension system and additional alignment diagnosis, refer to DIAGNOSIS AND TESTING .

SYMPTOM CHART - TIRE WEAR

Condition	Possible Sources	Action
Inner edge/shoulder wear	Excessive toe out and/or negative camber	GO to PINPOINT TEST A .
	Incorrect wheel and tire assembly rotation intervals	GO to PINPOINT TEST A .
	High-speed cornering	GO to PINPOINT TEST A .
Outer edge/shoulder wear	Excessive toe in and/or positive camber	GO to PINPOINT TEST B .
	Incorrect wheel and tire assembly rotation intervals	GO to PINPOINT TEST B .
	High-speed cornering	GO to PINPOINT TEST B .
Heel/toe wear	Excessive toe in/out Incorrect wheel and tire assembly rotation intervals	ROTATE the wheel and tire assemblies. CHECK the alignment, ADJUST as necessary.
Diagonal wear	Excessive toe in/out	GO to PINPOINT TEST C .
	Incorrect tire rotation intervals	GO to PINPOINT TEST C .
	Loose, worn or damaged suspension components	REFER to INSPECTION AND VERIFICATION .