This comprehensive Service Repair Manual provides detailed instructions and specifications for the GM Hummer H3, covering model years 2006 through 2009. It includes a wealth of information, designed to assist both experienced mechanics and DIY enthusiasts in maintaining and repairing their vehicle.

The manual offers extensive coverage on a wide range of topics, including engine overhaul and rebuilding, brake systems, sunroof operation, timing belt replacement, troubleshooting and diagnostics, wiring diagrams, computer diagnostic trouble tree charts, engine performance, front end and alignment procedures, suspension systems, transmission removal and installation, air conditioning service and capacities, transmission in-car servicing, computer diagnostic codes, firing orders, detailed specifications for all covered models, factory maintenance schedules and charts, serpentine belt routings, timing belt service procedures, brake servicing procedures, driving concerns, complete torque specifications, U-joint and CV-joint service procedures, repair procedures, complete wiring diagrams, and hundreds of illustrations and vacuum diagrams.

The GM Hummer H3 Service Repair Manual 2006-2009 is an essential tool for anyone who wants to maintain and repair their Hummer H3. This comprehensive manual provides detailed information about every aspect of the H3, from its engine and transmission to its electrical system and suspension. It includes step-by-step instructions, diagrams, and specifications to help you troubleshoot problems, perform routine maintenance, and even complete major repairs. Whether you're a professional mechanic or just a DIY enthusiast, this manual is an invaluable resource for keeping your Hummer H3 running smoothly.

The Hummer H3 itself is a mid-size SUV produced by General Motors from 2005 to 2010 as part of the Hummer brand. It was positioned as a smaller, more affordable alternative to the larger Hummer H1 and offered a blend of off-road capability with a more refined on-road experience. The H3 was powered by a 3.5-liter inline-5 cylinder engine, producing 220 horsepower and 240 lb-ft of torque, paired with either a 4-speed automatic or 5-speed manual transmission. The H3 was known for its rugged design, high ground clearance, and impressive off-road capabilities, thanks to its solid axles, four-wheel drive system, and available optional features like locking differentials and a transfer case. However, it also offered a surprisingly comfortable ride on the road, boasting a comfortable interior and relatively good fuel economy for its size. Despite its popularity, the H3 was discontinued in 2010 due to declining sales and the overall decline of the Hummer brand.