LI35.31-P-056961_Ver_1 PDF

A service bulletin that addresses issues of howling, humming, droning, and vibrations from the drivetrain of vehicles. It specifies the complaints related to the noise, identifies potential causes like imbalanced wheels and misalignment in the drivetrain assembly, and provides remedies through recommended procedures. The document includes details on performing a test drive, inspecting connections, and recalibrating components. It also suggests using specific diagnostic tools and emphasizes the importance of certain technical checks.