Drivetrain - Humming/Droaning Noise From Transfer Case

Date: June 12, 2007

Order No.: T-B-28.00/06a

Supersedes: T-B-28.00/06 dated March 13, 2006

Group: 28

Revision History

Revision Date Purpose

a 6/12/07 Damage Code Update

- 3/13/06 Initial issue

SUBJECT:
Model 163.157, up to VIN A458810

Humming / Droning from the Area of the Drive Train or Transfer Case





If you receive customer reports in the above model vehicle of humming and droning from the area of the drive train or transfer case at engine speeds of 3100 - 3800 rpm, this may be caused by the frequency of the transfer case vibration damper being outside the tolerance specification. To resolve, replace the transfer case vibration damper. Ensure correct installation position (Figure 1) and that tightening torque is 20 Nm.





Parts Information

Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on June 12, 2007. Please refer to Netstar -> Star TekInfo -> Star Time for the most current labor time allowance.





In Case of Warranty, use the table.