This DIY repair and service manual by Haynes, covers the following GM SUVs, both 2WD and 4WD models with 4.2L inline 6-cylinder, 5.3L and 6.0L V8 engines:

• Chevy TrailBlazer
• Chevy TrailBlazer EXT
• GMC Envoy
• GMC Envoy XL
• Oldsmobile Bravada
• Buick Rainier

Complete maintenance, service and repair information covering all major systems and components. Written for the do-it-yourself mechanic with hundreds of photos and easy step-by-step text instructions. Includes wiring diagrams with color key.
Book Excerpt: 2002-2009 Chevrolet TrailBlazer, GMC Envoy Repair Manual TRANSFER CASE LUBRICANT CHANGE (4WD MODELS)

Every 60,000 miles or 48 months This procedure should be performed after the vehicle has been driven so the lubricant will be warm and therefore will flow out of the transfer case more easily.

• Raise the vehicle and support it securely on jackstands.
• Remove the filler plug from the case (see illustration 21.1)
• Remove the drain plug from the lower part of the case and allow the lubricant to drain completely.
• After the case is completely drained, carefully clean and install the drain plug. Tighten the plug to the torque listed in this Chapter?s Specifications.
• Fill the case with specified lubricant until it is level with the lower edge of the filler hole.
• Install the filler plug and tighten it to the torque listed in Chapter?s Specifications.
• Drive the vehicle for a short distance and recheck the lubricant level. In some instances a small amount of additional lubricant will have to be added.

BRAKE HYDRAULIC SYSTEM: BLEEDING

Refer to illustration 8.8 Warning: Wear eye protection when bleeding the brake system. If the fluid comes in contact with your eyes, immediately rinse them with water and seek medical attention. Note: Bleeding the hydraulic system is necessary to remove any air that manages to find its way into the system when it?s been opened during removal and installation of a hose, line caliper or master cylinder. You?ll probably have to bleed the system at all four brakes if air has entered it due to low fluid level, or if the brake lines have been disconnected at the master cylinder. If a brake line was disconnected only at a wheel, then only the caliper must be bled. If a brake line is disconnected at a fitting located between the master cylinder and any of the brakes, that part of the system served by the disconnected line must be bled. Remove any residual vacuum from the power brake booster by applying the brake several times with the engine off. Remove the master cylinder reservoir cap and fill the reservoir with brake fluid. Reinstall the cap. Note: Check the fluid level often during the bleeding operation and add fluid as necessary to prevent the fluid level from falling low enough to allow air bubbles in the master cylinder.

Subject: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Chevrolet TrailBlazer, TrailBlazer EXT, GMC Envoy, Envoy XL, Oldsmobile Bravada service, maintenance, repair. ISBN-10: 1563927861 | ISBN-13: 9781563927867 | Haynes 24072