This course, adapted from military curriculum materials for vocational and technical education, teaches students to restore diesel engine performance to the manufacturer's specifications through troubleshooting and analyzing diesel engine fuel systems and to make minor and major adjustments to those components that directly affect engine performance. Students will learn to use appropriate hand tools, special tools, and shop equipment to test, adjust, and replace fuel system components that fail to meet the manufacturer's specifications. The course consists of two units with one lesson in each, making up 56 hours of classroom and shop instruction. Unit 1 covers introductory material and safety precautions, while unit 2 focuses on engine tune-up. The course consists of a single document containing both student and teacher materials. Instructor materials provided are an introduction to the course; an outline of training objectives; lists of texts, references, tools, equipment, training devices, and training aids equipment; a master schedule; and lesson plans. The lesson plans contain an outline of instruction and activities for teachers and students. Student materials provided include three job sheets and one information sheet. (KC)