Now, technicians and fleet managers can brush up their engine skills with the most comprehensive, up-to-date books on medium/heavy duty diesel engines. This two-book set highlights the latest technologies as it systematically explains diagnosis, service, and repair. Photo sequences present each step of diagnostic and repair procedures, and tool lists inform users what they need for the job--before they start it. With all this--plus definitions of the latest terms, inside service tips, and ASE task tables--these books belong in every technician's work area!