Symptom Chart - Engine-Speed Related Vibrations

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: 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 CHART - ENGINE-SPEED RELATED VIBRATIONS

Condition	Possible Sources	Action
0.5 order engine vibration	Engine	REFER to DIAGNOSIS AND TESTING .
First through sixth order engine vibration	Engine	REFER to DIAGNOSIS AND TESTING .
	Transmission/transaxle	REFER to DIAGNOSIS AND TESTING , AUTOMATIC TRANSAXLE/TRANSMISSION - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT) or MANUAL TRANSAXLE/TRANSMISSION AND CLUTCH - GENERAL INFORMATION .
	Engine mounts	REFER to ENGINE SYSTEM - GENERAL INFORMATION .
	Transmission/transaxle mounts	REFER to DIAGNOSIS AND TESTING , AUTOMATIC TRANSAXLE/TRANSMISSION - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT) or COMPONENT TESTS .
	Exhaust system	REFER to DIAGNOSIS AND TESTING .
Belt driven accessory speed vibration	Engine pulley	REFER to SYMPTOM CHART -- NVH .
	Coolant pump	REFER to DIAGNOSIS AND TESTING .
	Generator	REFER to DIAGNOSIS AND TESTING .
	A/C compressor	REFER to COMPONENT TESTS or DIAGNOSIS AND TESTING .
	Power steering pump	REFER to DIAGNOSIS AND TESTING .
	Vacuum pump	REFER to DIAGNOSIS AND TESTING .
	Accessory drive belt	REFER to DIAGNOSIS AND TESTING .