The Isuzu Engine C22NE, 22LE, and 20LE Repair Service Manual is a comprehensive resource designed for professional technicians. This manual provides detailed information and instructions covering all aspects of maintenance, repair, and troubleshooting for these Isuzu engine models. It includes detailed diagrams, specifications, and step-by-step procedures to ensure accurate and efficient servicing. The manual covers a wide range of topics, including engine assembly and disassembly, lubrication systems, fuel systems, cooling systems, electrical systems, and more. With its in-depth coverage and clear instructions, this manual empowers technicians to diagnose and resolve issues effectively.

The Isuzu C22NE, 22LE, and 20LE engines are a family of 2.2-liter, naturally aspirated, inline-four gasoline engines produced by Isuzu Motors from 1986 to 2002. They are known for their reliability, durability, and fuel efficiency, making them popular engines for a variety of applications, including passenger cars, light trucks, and commercial vehicles. The C22NE was the first in the family, featuring a cast iron block and cylinder head, with a single overhead camshaft (SOHC) configuration. The 22LE and 20LE variants followed, with the 22LE retaining the C22NE's SOHC design but with a different cylinder head, while the 20LE adopted a twin overhead camshaft (DOHC) layout for improved performance. These engines featured a variety of advanced technologies for their time, including a multi-point fuel injection system for precise fuel delivery, a closed-loop emission control system to meet stringent emissions standards, and a balance shaft to reduce vibration. The C22NE and 22LE engines produced between 110 and 130 horsepower, while the 20LE, with its DOHC configuration, offered a slightly higher power output of 140 horsepower. The "C" in the engine code stands for "cylinder," while "22" indicates the engine's displacement in liters. The various suffixes, such as "NE," "LE," and "LE," denote specific engine variations and advancements over the years. These engines found their way into a wide range of Isuzu vehicles, including the popular Gemini, Aska, and Rodeo models, as well as other vehicles from manufacturers like Opel and Holden, contributing to the success of the brand in the global automotive market.