Symptom Chart: Engine-Speed Related Vibrations

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When an engine-speed related vibration is present, engine, engine accessory and engine firing calculations should be carried out.

NOTE: Any assembly that is out of balance will only cause a first order vibration, it will not cause a higher order vibration.

NOTE: Some engine-speed related vibrations are normal though they should not be felt in the passenger compartment.

SYMPTOM DESCRIPTION - ENGINE-SPEED RELATED VIBRATIONS

Condition	Possible Sources	Actions
0.5 order engine vibration	Engine	REFER to ENGINE Symptom Chart: NVH .
First through sixth order engine vibration	Engine	REFER to ENGINE Symptom Chart: NVH .
	Transmission/transaxle	AUTOMATIC TRANSMISSION - 6F50/6F55 . REFER to TRANSFER CASE - POWER TRANSFER UNIT .
	Engine mounts	REFER to ENGINE Symptom Chart: NVH .
	Transmission/transaxle mounts	AUTOMATIC TRANSMISSION - 6F50/6F55 . REFER to TRANSFER CASE - POWER TRANSFER UNIT .
	Exhaust system	REFER to EXHAUST SYSTEM Symptom Chart: NVH .
Belt driven accessory speed vibration	Engine pulley	REFER to ENGINE Symptom Chart: NVH .
	Coolant pump	REFER to ENGINE Symptom Chart: NVH .
	Generator	REFER to CHARGING SYSTEM .
	A/C compressor	REFER to CLIMATE CONTROL SYSTEM Symptom Chart: NVH .
	Accessory drive belt	REFER to ACCESSORY DRIVE Symptom Chart: FEAD .