Symptom Chart(s)

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

WARNING: Vehicle may have multiple drive wheels. Do not use engine to power the driveline unless all drive wheels are elevated off the ground. Drive wheels in contact with ground could cause unexpected vehicle movement. Failure to follow this instruction may result in serious personal injury.

Symptom Chart: Tire Wear

Condition	Possible Sources	Actions
Inner edge/shoulder wear	Excessive toe out and/or negative camber Incorrect wheel and tire assembly rotation intervals High-speed cornering	GO to Pinpoint Test A
Outer edge/shoulder wear	Excessive toe in and/or positive camber Incorrect wheel and tire assembly rotation intervals 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 Incorrect tire rotation intervals	GO to Pinpoint Test C
Diagonal wear	Loose, worn or damaged suspension components	REFER to: Suspension System .

Symptom Chart: NVH

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, REFER to: Noise, Vibration and Harshness (NVH) . Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, REFER to: Noise, Vibration and Harshness (NVH) for the next likely system and continue diagnosis.

Condition	Possible Sources	Actions
Wobble or shimmy	Bent wheel	INSTALL a new wheel as necessary.
	Damaged tire	INSTALL a new tire as necessary.
	Loose wheel nuts	TIGHTEN to specification.
High-speed shake	Tires/wheels	REFER to Radial Runout Measurement - Loaded Hunter Road Force® Method or Radial Runout Measurement - Dial Indicator Method in Component Test- Radial Runout .
Vehicle vibration	Tires/wheels	REFER to Radial Runout Measurement - Loaded Hunter Road Force® Method or Radial Runout Measurement - Dial Indicator Method in Component Test- Radial Runout .