NO.3 ABNORMAL NOISE AND/OR VIBRATION FROM COUPLING COMPONENTSM2445080
NO.3 ABNORMAL NOISE AND/OR VIBRATION FROM COUPLING COMPONENT

id030300800600

3
Abnormal noise and/or vibration from coupling component
[TROUBLESHOOTING HINTS]
• Abnormal noise and/or vibration from coupling component during driving
• Propeller shaft is malfunctioning or attached improperly.
• Engine mount or differential mount malfunction
• Resonance of rotating parts on vehicle (engine, propeller shaft, rear differential, tire, etc.)
• Resonance with engine vibration (mainly with exhaust system parts)
• Rear differential malfunction
• Coupling component malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY DSC, PCM, TCM (ATX), BCM (MTX), INSTRUMENT CLUSTER, AND 4WD SYSTEM DTCS
• Verify DSC, PCM, TCM (ATX), BCM (MTX), instrument cluster, and 4WD system DTCs using the M-MDS.
• Are there any DTCs present?
Yes
Go to applicable DTC inspection.
No
Go to next step.
2
VERIFY INSTALLATION CONDITION OF VEHICLE PARTS
• Verify installation condition for following:
― Propeller shaft (including bending and joint operation)
― Center bearing
― Engine mount
― Differential mount
― Hub bearing
― Exhaust system parts
― ABS wheel-speed sensor
• Are they properly installed?
Yes
Go to next step.
No
Repair or replace malfunctioning part.
3
DETERMINE IF MALFUNCTION IS CAUSED BY REAR DIFFERENTIAL
• Install tires of another brand.
Note
• When tires of another brand are installed, the same malfunction can occur due to conditions different from customer explanation. Be careful not to confuse it with customer complaint.
• Perform simulation driving at the same engine speed, gear position, and vehicle speed that customer vehicle had malfunction.
• Does the same malfunction occur?
Yes
Reinstall customer’s vehicle tire. Go to next step.
No
4WD system is okay.
Reinstall customer’s vehicle tire.
4
INSPECT REAR DIFFERENTIAL
• Inspect rear differential for following:
― Backlash
― Teeth contact (See REAR DIFFERENTIAL ASSEMBLY.)
• Are they okay?
Yes
Replace coupling component.
No
Inspect malfunctioning part and adjust it if necessary.