This comprehensive 2004 GMC Envoy Service and Repair Manual provides detailed instructions and specifications for maintaining, servicing, diagnosing, and repairing your vehicle. Covering all models and all repairs from A to Z, this manual is specifically designed for the 2004 GMC Envoy and is the same information used by technicians at dealerships.

With easy-to-follow step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications, you'll have the knowledge to confidently handle any repair. The manual covers a wide range of topics, including:

* **Maintenance:** Routine maintenance procedures, scheduled services, and recommended fluids.
* **Engine:** Detailed information on engine components, operation, troubleshooting, and repair.
* **Control System:** In-depth coverage of the vehicle's control systems, including the engine control unit (ECU), sensors, and actuators.
* **Mechanical:** Comprehensive information on the vehicle's mechanical components, including transmission, suspension, brakes, steering, and drivetrain.
* **Fuel Service Specifications:** Information on fuel systems, fuel injectors, fuel lines, and fuel pumps.
* **Emission Control:** Detailed information on emission control systems, including catalytic converters, oxygen sensors, and exhaust systems.
* **Intake Exhaust Cooling:** Information on the vehicle's intake and exhaust systems, including air filters, manifolds, and cooling systems.
* **Lube:** Specifications for lubricants, fluids, and recommended service intervals.
* **Ignition Starting Charging:** Coverage of ignition systems, starting systems, and charging systems.
* **Auto Transmission Clutch:** Information on automatic transmissions, clutches, and gearboxes.
* **Manual Transmission:** Instructions for manual transmissions, clutch systems, and gearboxes.
* **Transfer Propeller Shaft:** Information on transfer cases, propeller shafts, and drivelines.
* **Drive Shaft:** Details on drive shafts, axles, and related components.
* **Differential:** Information on differentials, gear ratios, and lubrication.
* **Axle Suspension:** Comprehensive coverage of axles, suspension systems, struts, shocks, and springs.
* **Tire & Wheel:** Information on tire sizes, wheel specifications, and tire maintenance.
* **Brake Control:** In-depth information on brake systems, including ABS, brake boosters, and hydraulic systems.
* **Brake:** Detailed instructions on brake components, calipers, rotors, drums, and pads.
* **Parking Brake:** Information on parking brake systems and operation.
* **Steering Column:** Coverage of steering columns, steering mechanisms, and steering wheels.
* **Power Steering:** Information on power steering systems, pumps, and hydraulics.
* **Air Condition:** Details on air conditioning systems, components, and refrigerant.
* **Suppl Restraint System:** Information on supplemental restraint systems, including airbags and seatbelt pretensioners.
* **Seat Belt:** Details on seatbelt systems, buckles, and operation.
* **Engine Immobilizer:** Information on engine immobilizer systems and anti-theft devices.
* **Cruise Control:** Information on cruise control systems and operation.
* **Wiper & Washer:** Details on windshield wiper systems, washer pumps, and fluid reservoirs.
* **Door Lock:** Information on door lock systems, actuators, and keyless entry.
* **Meter Audio/Visual:** Details on instrument panels, gauges, and warning lights.
* **Horn:** Coverage of horn systems and operation.
* **Windshield/Glass Mirror:** Information on windshield and window systems, mirrors, and glass.
* **Instrument Panel:** Details on the instrument panel, controls, and switches.
* **Seat:** Information on seat systems, adjustments, and accessories.
* **Engine Hood/ Door:** Information on hood and door systems, latches, and hinges.
* **Exterior & Interior:** Details on exterior and interior components, including trim, lights, and upholstery.
* **Electrical:** Comprehensive coverage of electrical systems, including wiring diagrams, fuses, and relays.
* **Multiplex/ Can Communication:** Information on multiplex and CAN communication systems, including network protocols and troubleshooting.

This manual provides everything you need to confidently repair and maintain your 2004 GMC Envoy, saving you time and money.

The 2004 GMC Envoy, a mid-size SUV, was a popular choice for families and individuals seeking a versatile and comfortable ride. Built on the GMT360 platform, it shared its underpinnings with other General Motors SUVs of the time, including the Chevrolet Trailblazer and the Buick Rainier. The Envoy was known for its spacious cabin, offering seating for up to seven passengers with its optional third-row bench. It came standard with a powerful 4.2L Vortec V6 engine, producing 275 horsepower and 275 lb-ft of torque, paired with a four-speed automatic transmission. The Envoy offered a variety of trims, from the base SLE to the luxurious SLT, with various features like leather upholstery, heated seats, and a sunroof. While the Envoy provided a comfortable ride and decent off-road capabilities, it wasn't known for its fuel efficiency.

The Envoy's popularity declined in later years due to the introduction of newer and more fuel-efficient SUVs. However, it remains a reliable and durable vehicle for those looking for a used SUV in the mid-size segment. Its spacious interior, comfortable ride, and powerful engine make it a practical choice for families or individuals seeking a dependable daily driver. The 2004 GMC Envoy continues to be a popular choice for those seeking affordable and reliable transportation, with a wide range of aftermarket parts and accessories available to keep these vehicles running smoothly. The 2004 GMC Envoy Service and Repair Manual is an essential resource for owners and mechanics, providing detailed instructions and technical specifications for all aspects of maintenance and repair. Whether you're a seasoned mechanic or a DIY enthusiast, this manual will equip you with the knowledge and tools to keep your Envoy in top condition.