LI03.10-P-052286_Ver_3 PDF

A service bulletin that addresses engine noise issues in certain vehicles. The document describes complaints of knocking and clattering noise from the engine, suspected to be due to scuffed cylinders caused by the piston's oil scraper ring. Remedies involve comparing engine noise to an attached sound file and inspecting cylinder walls. It includes production numbers of engines affected and provides images illustrating damaged cylinders.