Symptom Chart - Engine-Speed Related Vibrations

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.

ENGINE-SPEED RELATED VIBRATIONS - SYMPTOM CHART

Condition	Possible Sources	Action
0.5 order engine vibration	Engine	REFER to ENGINE SYSTEM - GENERAL INFORMATION .
First through sixth order engine vibration	Engine	REFER to ENGINE SYSTEM - GENERAL INFORMATION .
	Transmission/transaxle	Refer to appropriate Automatic Transmission article for the procedure. Refer to appropriate Manual Transmission, Clutch And Transfer Case article for the procedure. GO to the Symptom Chart in the appropriate information.
	Engine mounts	REFER to ENGINE SYSTEM - GENERAL INFORMATION .
	Transmission/transaxle mounts	Refer to appropriate Automatic Transmission article for the procedure. Refer to appropriate Manual Transmission, Clutch And Transfer Case article for the procedure. GO to the Symptom Chart in the appropriate information.
	Exhaust system	REFER to EXHAUST SYSTEM .
Belt driven accessory speed vibration	Engine pulley	REFER to ENGINE SYSTEM - GENERAL INFORMATION .
	Coolant pump	REFER to ENGINE SYSTEM - GENERAL INFORMATION .
	Generator	REFER to CHARGING SYSTEM .
	A/C compressor	REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS .
	Power steering pump	REFER to STEERING SYSTEM - GENERAL INFORMATION .
	Vacuum pump	REFER to ENGINE SYSTEM - GENERAL INFORMATION .
	Accessory drive belt	REFER to ENGINE SYSTEM - GENERAL INFORMATION .