The Isuzu Trooper, produced from 1999 to 2002, is a robust mid-size SUV renowned for its exceptional off-road capability, durable body-on-frame construction, and spacious interior. This generation, often identified by chassis codes UB (short wheelbase) and UC (long wheelbase), features a 3.5L DOHC V6 gasoline engine (6VD1) delivering approximately 215 horsepower and 230 lb-ft of torque. Its strengths lie in its reliable powertrain, comfortable ride for its class, and strong utility, making it a favored choice for both everyday driving and demanding off-road adventures. The Trooper's engineering quality and historical legacy in producing capable vehicles position it as a dependable option for enthusiasts and owners who value utility and performance.

This comprehensive workshop manual serves as an essential resource for maintaining and repairing the Isuzu Trooper models from 1999 through 2002. It covers all trim levels and configurations, offering in-depth technical information from basic preventative maintenance, such as oil changes and filter replacements, to complex procedures like engine and transmission overhauls. The manual details engine mechanicals, fuel and ignition systems, drivetrain, suspension, steering, brakes, and the electrical system, including detailed wiring diagrams. It also provides systematic troubleshooting guides, diagnostic procedures, and specifications for special tools, ensuring that owners, mechanics, and technicians have the knowledge needed to keep the vehicle in optimal condition.