This comprehensive workshop service repair manual is your ultimate guide for maintaining and repairing your Isuzu NPR, NQR, NRR, and NPR-HD trucks manufactured between 2006 and 2009. Packed with detailed instructions and illustrations, this manual covers a wide range of topics to empower both DIY enthusiasts and experienced mechanics.

The manual provides a wealth of information, including general information on your truck, service specifications, tightening torques, maintenance schedules, and troubleshooting guides. It also features a dedicated section for special tools and equipment, along with recommended fluids and lubricants to ensure optimal performance.

Delve into the intricacies of your truck's systems, from the heating and ventilation system to the air conditioning system and body-cab and accessories. You'll find detailed diagnostic information and procedures, as well as comprehensive coverage of the power steering system, front end alignment, steering linkage, axle and suspension, steering column, wheels and tires, propeller shaft and universal joint, and brake systems.

The manual also includes in-depth coverage of the 5.2L 4-cylinder in-line, 4-cycle, water-cooled, turbocharged, OHC, Isuzu 4HK1-TC diesel engine, along with the 4-speed automatic transmission AISIN 450-43LE and the 6-speed manual transmission GM/Isuzu MZZ6U. Explore the engine mechanical components, including the engine mount system, turbocharger system, exhaust manifold, lubrication system, engine cooling system, air cleaner element, radiator and intercooler, and engine fuel system.

Furthermore, the manual comprehensively covers the engine electrical system, including the charging system, generator system, starting system, preheating system, engine control system, diagnostic trouble code (DTC), engine control module (ECM), accelerator pedal position (APP) sensor, vehicle speed sensor (VSS), power take off (PTO) system, fuel injection system, glow plug controller, engine exhaust system, EGR valve and EGR cooler, and exhaust brake system.

Finally, this manual offers detailed information on the automatic transmission, manual transmission, clutch system and controls, windshield wiper and washer, lighting system, instrument panel, power window and lock, audio and entertainment, in-line harness connector, steel tilt cab system, cab interior and exterior, seat and seat belt, and wiring diagrams.

With over 2100 pages of step-by-step instructions and clear illustrations, this repair manual empowers you to confidently handle any service, repair, or maintenance task on your Isuzu truck.

The ISUZU NPR, NQR, NRR, and NPR-HD are a series of medium-duty trucks produced by Isuzu Motors Limited from 2006 to 2009. These versatile trucks were designed for a range of applications, including delivery, construction, and utility work. The NPR (New Power Route) is the base model, while the NQR (New Quality Route) offers a higher payload capacity. The NRR (New Route Runner) is a cab-over design, known for its maneuverability in tight spaces. Lastly, the NPR-HD (New Power Route - Heavy Duty) is the most powerful option, capable of handling heavier loads. All models share a robust construction featuring a durable steel frame, reliable engine options, and a comfortable cab designed for operator comfort and safety.

The Isuzu NPR series of trucks is distinguished by its user-friendly features and ease of maintenance. The cabs are spacious and provide excellent visibility, while the controls are designed for intuitive operation. The engine options, ranging from 4-cylinder to 6-cylinder diesel powerplants, offer a balance of power and fuel efficiency. The trucks are also known for their reliability and durability, having a long service life even in demanding working conditions. They are well-regarded for their fuel economy and low operating costs, making them an attractive option for businesses looking for a cost-effective and dependable workhorse. This comprehensive Workshop Service Repair Manual provides detailed instructions and troubleshooting guides for all aspects of the trucks, making it an essential tool for mechanics and owners alike.