Model Variant:
Envoy (S-series based midsize SUV, including Envoy XL and Envoy XUV derivatives)
Production Years Covered:
2004 model year; RepairSurge coverage spans the Envoy generation (2002-2009)
Body Styles:
4-door sport utility vehicle
Target Audience:
Do-it-yourselfers and home mechanics working on their own Envoy, from routine maintenance to major repairs
Competitive Advantage:
Licensed information derived from OE materials at a lower cost than printed manuals, with instant online access and no shipping
Segment:
Midsize SUV, manufactured by General Motors
Access:
Web-browser based; works on PC, laptop, smartphone, or tablet
Content Source:
Factory-derived, officially licensed service and repair information
Subscription Length:
Full year of access included; discounts available for additional years
Coverage Areas:
Brakes, suspension, steering, engine, drivetrain, wiring, heating and air conditioning, plus general maintenance and repair procedures
Manual Type:
Digital service and repair manual software (RepairSurge)
Page Count:
N/A - delivered as searchable online software rather than fixed printed pages
File Format:
Web-based software accessed through a browser; no installation disc required
Delivery Method:
Instant online access after purchase; internet connection required
Compatibility:
Any PC, laptop, smartphone, or tablet with a web browser
Engine:
Complete engine service, repair, and overhaul procedures
Transmission & Drivetrain:
Automatic transmission, transfer case, differentials, and driveline components
Brakes:
Front and rear brake service, ABS diagnostics, rotor and pad replacement
Suspension & Steering:
Component replacement, alignment specifications, power steering service
Electrical & Wiring:
Wiring diagrams, component testing, and electrical diagnostics
Heating & Air Conditioning:
HVAC diagnosis, refrigerant service, and component replacement
Fuel & Emissions:
Fuel system service and emissions control diagnostics
Body & Interior:
Body component removal, installation, and adjustment
Diagnostics:
Troubleshooting charts and diagnostic trouble code information
Step-by-Step Repairs:
Detailed removal, installation, and adjustment procedures
Maintenance:
Scheduled service procedures and specifications
Torque Specifications:
Factory torque values for fasteners throughout the vehicle
Wiring Diagrams:
Detailed schematics for electrical troubleshooting
Depth:
Professional-grade, factory-derived information suitable for both DIY owners and technicians
Specifications:
Complete factory specifications for adjustments, clearances, and fluid capacities
Special Tools:
Identifies required tools for each procedure
Part Identification:
Component locations, illustrations, and part references
Fluid Capacities:
Factory fluid types and fill quantities
Illustrations:
Diagrams and photos supporting repair procedures
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Primary Engine:
4.2L Vortec 4200 inline six-cylinder (LL8)
Optional Engine:
5.3L Vortec 5300 V8 (Envoy XL / Denali applications)
Valvetrain:
DOHC, 4 valves per cylinder (4.2L I6); OHV 16-valve (5.3L V8)
Performance & Fuel System
Horsepower (4.2L I6):
Approximately 275 hp
Torque (4.2L I6):
Approximately 275 lb-ft
Fuel System:
Sequential multi-port fuel injection
Fuel Type:
Regular unleaded gasoline
Fuel Tank Capacity:
Approximately 22 gallons
Standard Transmission:
4-speed automatic transmission
Optional Transmission:
N/A - all 2004 Envoy models came with an automatic transmission
Drive Configuration:
Rear-wheel drive or AutoTrac four-wheel drive
Features:
Electronically controlled automatic with tow/haul mode on equipped models
Wheelbase:
Approximately 113 inches (standard Envoy)
Length:
Approximately 191.6 inches (standard Envoy)
Body Construction:
Body-on-frame SUV
Curb Weight:
Approximately 4,400-4,700 lb depending on drivetrain and trim
Towing Capacity:
Approximately 5,700-6,200 lb when properly equipped
Crash Test Information:
N/A - refer to NHTSA and IIHS records for official 2004 Envoy ratings
ABS:
Four-wheel anti-lock braking system
Traction Control:
Available traction control system
Airbags:
Dual front airbags; side-impact airbags available on some trims
Restraints:
Three-point safety belts and LATCH child seat anchors
Audio System:
AM/FM stereo with CD player; premium Bose audio available on higher trims
Optional Equipment:
Available rear-seat audio controls and DVD entertainment on some models
Driver Assistance Features:
N/A - modern ADAS features were not offered on this model era
OnStar:
Available OnStar telematics system
Oil Change:
Per Oil Life Monitor, typically every 3,000-7,500 miles depending on driving conditions
Tire Rotation:
Every 7,500 miles
Air Filter:
Inspect regularly; replace approximately every 30,000 miles
Spark Plugs (4.2L I6):
Approximately every 100,000 miles
Engine Oil:
SAE 5W-30, API certified
Automatic Transmission Fluid:
DEXRON-III automatic transmission fluid
Coolant:
DEX-COOL extended-life coolant
Transfer Case Fluid:
Auto Trak II fluid (4WD models)
Known Issues / Common Wear Items
Throttle Body:
Carbon buildup on the electronic throttle body can cause rough idle or reduced power mode
Front Suspension:
Wear of control arm bushings and ball joints on higher-mileage vehicles
HVAC Actuator:
Blend door actuator failure is a common complaint
Brakes:
Front brake pads and rotors are regular wear items
Manufacturer:
General Motors, GMC division
Model Evolution:
The Envoy was introduced in 1998 as a trim of the Jimmy and relaunched in 2002 as a standalone midsize SUV on the GMT360 platform, with XL and XUV variants added later
Platform:
GMT360, shared with the Chevrolet TrailBlazer, Buick Rainier, and Oldsmobile Bravada
Production Location:
Moraine, Ohio assembly plant
Generation:
First generation (2002-2009)
