NO.22 VIBRATION CONCERNS (ENGINE)[L3]

NO.22 VIBRATION CONCERNS (ENGINE)[L3]

id0103a4802800

22

VIBRATION CONCERNS (ENGINE)

DESCRIPTION

Vibration from under hood or driveline

POSSIBLE CAUSE

• Loose attaching bolts or worn parts

• Components malfunction such as worn parts

Diagnostic procedure

STEP	INSPECTION	RESULTS	ACTION
1	Inspect the following components for loose attaching bolts or worn parts: • Cooling fan • Drive belt and pulleys • Generator • Engine mounts • Exhaust system mounts All items normal?	Yes	Inspect the following systems: • Wheels • ATX • Driveline • Suspension
1		No	Readjust or retighten engine mount installation position. Service if necessary for other parts.
2	• Verify test results. ― If normal, return to diagnostic index to service any additional symptoms. (See ENGINE SYMPTOM TROUBLESHOOTING[L3].) ― If malfunction remains, inspect related Service Information and perform repair or diagnosis. • If vehicle is repaired, troubleshooting completed. • If vehicle is not repaired or additional diagnostic information is not available, replace the PCM. (See PCM REMOVAL/INSTALLATION[L3].)