This manual covers 238, 258, 268, and 338 models from the 2011, 2012, and 2013 model years. These medium-duty commercial trucks are powered by the reliable J08E Series inline 6-cylinder turbocharged diesel engines, known for their durability and fuel efficiency, making them suitable for a wide range of vocational applications such as delivery and utility services. Trucks are recognized for their robust engineering and ease of serviceability, designed to meet the demands of rigorous commercial use.

This comprehensive service manual provides detailed information for the maintenance, diagnosis, and repair of these vehicles. It covers essential mechanical and electrical systems, including the J08E engine, clutch, and both manual and automatic transmissions, along with chassis components and wiring diagrams. The manual offers step-by-step procedures, troubleshooting guides, and technical specifications, equipping owners, mechanics, and technicians with the necessary knowledge to ensure optimal performance and longevity of the vehicle.