NO.22 VIBRATION CONCERNS (ENGINE) [L8, LF]

NO.22 VIBRATION CONCERNS (ENGINE) [L8, LF]

id0103a0802800

22

VIBRATION CONCERNS (ENGINE)

DESCRIPTION

•  Vibration from under bonnet or driveline.

POSSIBLE CAUSE

•  Loose attaching bolts or worn parts

•  Components malfunction such as worn parts

•  PCM malfunction

Diagnostic procedure

STEP	INSPECTION	RESULTS	ACTION
1	Inspect the following components for loose attaching bolts or worn parts: • Cooling fan • Drive belt and pulleys • Engine mounts • Exhaust system mounts • Generator Is there any malfunction?	Yes	Inspect the following systems: • Driveline • Suspension • Wheels Repair or replace the malfunctioning part according to the inspection results.
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 [L8, LF].) • If malfunction remains, inspect related Service information perform repair or diagnosis. ― If vehicle repaired, troubleshooting completed. ― If vehicle not repaired or additional diagnostic information not available, replace the PCM. (See PCM REMOVAL/INSTALLATION [L8, LF].)