This comprehensive 2004 Chevrolet Blazer and Trailblazer Service and Repair Manual provides detailed information for maintaining, servicing, diagnosing, and repairing your vehicle. It covers all models and provides the same information used by technicians at dealerships. The manual features complete step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications to help you perform repairs with ease.

You'll find detailed instructions and illustrations covering every aspect of your vehicle, including:

* **Maintenance:** Regular maintenance schedules, fluid changes, and other essential tasks.
* **Engine:** Engine components, operation, troubleshooting, and repair procedures.
* **Control System:** Explanation of various electronic control systems and their functions.
* **Mechanical:** Detailed information on components like the transmission, drivetrain, suspension, and brakes.
* **Fuel Service Specifications:** Technical details on fuel systems and their components.
* **Emission Control:** Information on emission control systems and components.
* **Intake Exhaust Cooling:** Detailed information on cooling and exhaust systems.
* **Lube:** Guidance on lubrication and recommended fluids.
* **Ignition Starting Charging:** Comprehensive coverage of ignition, starting, and charging systems.
* **Auto Transmission Clutch:** Detailed information on automatic transmissions and clutch systems.
* **Manual Transmission:** Detailed information on manual transmissions and their operation.
* **Transfer Propeller Shaft:** Information on transfer cases and propeller shafts.
* **Drive Shaft:** Details on drive shafts and their components.
* **Differential:** Detailed information on differentials and their operation.
* **Axle Suspension:** Information on axle and suspension systems.
* **Tire & Wheel:** Guidance on tire and wheel maintenance and replacement.
* **Brake Control:** Detailed information on brake control systems.
* **Brake:** Comprehensive information on brake systems, including disc and drum brakes.
* **Parking Brake:** Instructions for maintaining and repairing the parking brake system.
* **Steering Column:** Detailed information on steering columns and components.
* **Power Steering:** Information on power steering systems and their operation.
* **Air Condition:** Comprehensive guidance on air conditioning systems and components.
* **Supplement Restraint System:** Information on supplemental restraint systems, including airbags.
* **Seat Belt:** Detailed information on seat belts and their operation.
* **Engine Immobilizer:** Explanation of engine immobilizer systems and their functions.
* **Cruise Control:** Information on cruise control systems and their operation.
* **Wiper & Washer:** Guidance on windshield wiper and washer systems.
* **Door Lock:** Information on door locks and their operation.
* **Meter Audio/Visual:** Details on gauges, warning lights, and audio systems.
* **Horn:** Information on horns and their operation.
* **Windshield/Glass Mirror:** Guidance on windshield and mirror replacement.
* **Instrument Panel:** Information on instrument panels and components.
* **Seat:** Detailed information on seats and their adjustments.
* **Engine Hood/Door:** Guidance on hood and door operation.
* **Exterior & Interior:** Detailed information on exterior and interior features.
* **Electrical:** Comprehensive information on electrical systems and components.
* **Multiplex/Can Communication:** Information on multiplex and CAN communication systems.

This manual provides everything you need to confidently maintain and repair your 2004 Chevrolet Blazer or Trailblazer.

The 2004 Chevrolet Blazer and Trailblazer represent a significant era in Chevrolet's SUV lineup, marking the transition from the classic Blazer nameplate to a new, modern SUV model. The 2004 Trailblazer, replacing the Blazer, introduced a bolder, more refined aesthetic with a strong emphasis on practicality and versatility. Both vehicles offered a robust and reliable driving experience, appealing to a diverse range of customers. The Blazer, though nearing the end of its production run in 2004, remained a solid option for those seeking a rugged and capable off-roader, while the Trailblazer presented a more refined and modern alternative for both urban and suburban adventures.

Under the hood, both the Blazer and Trailblazer offered a variety of engine options, catering to different performance needs and fuel economy preferences. The Blazer was available with a 4.3L Vortec V6 engine or a 5.3L Vortec V8, while the Trailblazer expanded the options with a 2.8L Duramax diesel engine, alongside the 4.2L Vortec V6 and 5.3L Vortec V8. These engines were paired with either a 4-speed automatic transmission or a 5-speed automatic transmission, depending on the engine and trim level. The 2004 models were also known for their spacious interiors, capable of accommodating up to seven passengers, and offered various features to enhance comfort, convenience, and entertainment. From power windows and locks to optional leather upholstery and a premium sound system, both vehicles provided a comfortable and enjoyable driving experience.