NO.22 VIBRATION CONCERNS (ENGINE) [L5]SM2444482
NO.22 VIBRATION CONCERNS (ENGINE) [L5]

id0103a8802800

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
• Engine mounts
• Exhaust system mounts
• Generator
Is there any malfunction?
Yes
Readjust or retighten engine mount installation position.
Repair or replace the malfunctioning part if necessary for other parts.
No
Inspect the following systems:
• Wheels
• ATX
• Driveline
• Suspension
Repair or replace the malfunctioning part according to the inspection results.
2
Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [L5].)
• If the malfunction remains, inspect the related Service Information and perform the repair or diagnosis.
― If the vehicle is repaired, troubleshooting is completed.
― If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.