This service manual provides comprehensive instructions for the maintenance, repair, and troubleshooting of the Mack E-Tech engine. It covers essential systems such as fuel injection, turbocharging, cooling, lubrication, and electrical components. The manual includes detailed procedures for disassembly, inspection, reassembly, and adjustment of engine parts, along with technical specifications and diagrams to support accurate repairs. Additionally, it offers maintenance schedules, safety guidelines, and diagnostic information to ensure the engine’s optimal performance and longevity. This manual is an indispensable tool for technicians and mechanics responsible for the upkeep of Mack E-Tech engines.