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VIBRATION CONCERNS (ENGINE) [SKYACTIV-G (US)]

VIBRATION CONCERNS (ENGINE) [SKYACTIV-G (US)]

SM2565592


id0103s48909s6

Troubleshooting item

Vibration concerns (engine)

Description
• Vibration from under hood or driveline.
Possible cause
• Loose attaching bolts or worn parts
• Components malfunction such as worn parts
System wiring diagram
• Not applicable
Connector diagram
• Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1
VERIFY PART INSTALLATION CONDITION
• Inspect the following components for loose attaching bolts or worn parts:
― Cooling fan
― Drive belt and pulley
― Engine mounts
― Exhaust system
― Battery
• Is there any malfunction?
Yes
Readjust installation position or retighten the suspect parts.
Repair or replace the malfunctioning part according to the inspection results for other parts.
Go to repair completion verification.
No
Inspect the following systems:
• Wheels
• Transmission and mounts
• Driveline
• Suspension
• Engine compartment
― If there is any malfunction:
• Repair or replace the malfunctioning location and perform the repair completion verification.
― If there is no malfunction:
• Go to repair completion verification.
Repair completion verification 1
VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Has the malfunction symptom been eliminated?
Yes
Complete the symptom troubleshooting. (Explain contents of repair to customer)
No
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
• If the CAN communication is normal, perform the diagnosis from Step 1.
― If the malfunction recurs, go to the next step.
Repair completion verification 2
VERIFY IF MALFUNCTION IS CAUSED BY NOT PERFORMING PCM REPROGRAMMING
• Verify repair information and verify that there is a new calibration in the PCM.
• Is there a new calibration in the PCM?
Yes
Perform the PCM reprogramming and verify if the malfunction symptom was corrected.
No
Replace the PCM.