This workshop service repair manual covers the VM MOTORI HT2 and HT3 Series Diesel Engines, manufactured by DETROIT DIESEL VM MOTORI. These V6 and 4-cylinder diesel engines are designed for applications including Jeep models and others, adhering to EURO 2-3 emission standards. Known for their robust engineering and reliability, these engines are a testament to VM MOTORI's commitment to quality in diesel power. The manual provides comprehensive information for the HR494HT2, HR694HT2, HR494HT3, HR494HI3, and HR694HT3 engine variants. The purpose of this manual is to provide detailed guidance for the servicing, repair, and overhaul of the VM MOTORI HT2 and HT3 Series Diesel Engines. It is intended for VM Service Centers and technicians, offering essential information on technical specifications, maintenance procedures, system diagrams, disassembly and assembly instructions, checks and repairs, running tests, and adjustments. Additionally, the manual includes details on special tools and a labor time guide, ensuring that all aspects of engine upkeep and repair are covered comprehensively in English.