This comprehensive Jeep J20 Standard Cab Pickup 1979 Workshop Repair Service Manual provides you with the essential information you need to maintain, service, and troubleshoot your vehicle. Covering all models, engines, trims, and transmissions, this manual is a valuable resource for both professional mechanics and DIY enthusiasts. The manual is structured in a user-friendly manner, with detailed instructions, clear illustrations, diagrams, and photographs guiding you through every repair procedure. It includes troubleshooting sections, wiring diagrams, and detailed specifications to help you diagnose and resolve problems efficiently. The manual delves into every aspect of your Jeep J20 Standard Cab Pickup, offering step-by-step instructions for various repairs, from basic maintenance tasks to complex engine work. Key topics covered in this manual include: * **General Maintenance:** Learn about routine maintenance procedures such as oil changes, filter replacements, and fluid checks. * **Troubleshooting:** Find guidance on identifying and resolving common vehicle issues. * **Engine Service & Repair:** Gain insights into engine disassembly, assembly, repair, and maintenance. * **Transmission Service & Repair:** Learn about transmission operation, repair, and maintenance. * **Brake System:** Understand the components and operation of your brake system and learn how to service and repair them. * **Wiring Diagram:** Visualize the electrical system of your Jeep J20 and troubleshoot electrical problems with ease. * **Electrical System:** Explore the electrical components, wiring, and troubleshooting procedures for your vehicle's electrical system. * **Suspension:** Learn about the suspension system's components, maintenance, and troubleshooting. * **Periodic Lubrication:** Ensure proper lubrication for various components, extending the life of your vehicle. * **Steering:** Gain insights into the steering system, its maintenance, and possible repairs. * **Cooling System:** Understand the cooling system's operation, maintenance, and repair procedures. * **Fuel Injection & Fuel System:** Learn about the fuel injection system, troubleshooting, and maintenance. * **Emission System:** Explore the emission control system, its function, and maintenance. * **Heater & Air Conditioning:** Discover how to service, troubleshoot, and repair your vehicle's climate control system. * **Engine Control System:** Gain an understanding of the engine control system and its operation. * **Chassis & Body:** Learn about chassis components, bodywork, and maintenance. * **Restraint System:** Understand the safety features of your vehicle and ensure proper operation. * **Interior:** Learn how to maintain and repair your vehicle's interior components. * **Differential & Drive:** Explore the differential and drive system, its components, and maintenance. * **Axle:** Gain insights into axle components, maintenance, and potential repairs. This manual is the ultimate guide for anyone who desires to maintain, service, or repair their 1979 Jeep J20 Standard Cab Pickup. It is a comprehensive and invaluable resource that will save you time and money in the long run.

The Jeep J20, produced from 1974 to 1987, was a full-size pickup truck produced by American Motors Corporation (AMC) and its successor, Chrysler Corporation. The J20 was built on a stretched version of the Wagoneer's frame, utilizing a robust, heavy-duty design with a solid front axle and leaf springs. The 1979 model year, the subject of this repair service manual, exemplified the rugged nature of the J20 with its standard cab configuration. While sharing some design elements with the Wagoneer, the J20 was distinctly truck-oriented, boasting a larger cargo bed and a wide range of engine options. These engines, ranging from the 360 cubic-inch V8 to the fuel-efficient 304 cubic-inch V8, provided ample power for towing and off-road adventures, contributing to the J20's reputation as a capable and durable workhorse. The 1979 J20, like its predecessors, offered a simple and functional interior with a focus on durability. The standard cab configuration provided ample room for two passengers, while the large cargo bed readily accommodated various loads. This, combined with the available equipment like heavy-duty axles, power steering, and a manual transmission, made the J20 a popular choice for farmers, ranchers, and contractors who required a vehicle capable of tackling demanding tasks. The 1979 Jeep J20 Standard Cab Pickup, with its blend of ruggedness, utility, and practicality, remained a testament to the brand's legacy of building tough and capable vehicles. The J20's enduring popularity, even after production ended, is a testament to its enduring appeal as a reliable workhorse and a capable off-roader.