Affected Component: ENGINE AND ENGINE COOLING:ENGINE

Date Published

NONE PROVIDED

NHTSA TSB #

10021023

TSB Document

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# 4006.

Summary

WHINE HOWL NOISE FROM THE REAR DIFFERENTIAL ON VEHICLES EQUIPPED WITH AN 8.6 REAR AXLE. *KB