NO.22 VIBRATION CONCERNS (ENGINE) [LF, L5]

NO.22 VIBRATION CONCERNS (ENGINE) [LF, L5]

id010397802800

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 • Generator • Engine mounts • Exhaust system mounts Are all items normal?	Yes	Inspect the following systems: • Wheels • ATX • MTX • Driveline • Suspension Repair or replace the malfunctioning part according to the inspection results.
1		No	Readjust or retighten the engine mount installation position. Repair or replace the malfunctioning part according to the inspection results.
2	• Verify the test results. ― If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [LF, L5].) ― If a malfunction remains, inspect the related Service Information perform repair or diagnosis. • If the vehicle repaired, troubleshooting is completed. • If the vehicle not repaired or additional diagnostic information not available, replace the PCM. (See PCM REMOVAL/INSTALLATION [LF, L5].)