🏷️ Basic Information Identification Make: GMC Model: Envoy Year: 2009 Platform: GMT360 Codes Body Style: Mid-size SUV 👋 Introduction Market Position Vehicle Segment: Mid-size, body-on-frame SUV, sharing platform with Chevrolet TrailBlazer and Buick Rainier Competitive Analysis Competitors: Ford Explorer, Jeep Grand Cherokee, Toyota 4Runner, Nissan Pathfinder Key Features Manual Advantage: Officially licensed, OE material derived, instant access, multi-device compatibility, year-long access with renewal options Vehicle Usp: Robust truck-based chassis, available V8 engine, traditional SUV capability 📋 Manual Details Coverage Areas Primary Coverage: 2009 GMC Envoy Engine Coverage: 4.2L Inline-6, 5.3L V8 Transmission Coverage: 4-speed Automatic (4L60-E), 4-speed Automatic (4L70-E) Page Count Estimated Pages: Thousands (digital format, comprehensive) Manual Type Type: Official Service & Repair Manual Software Language Language: English Format Format: Online Software/Web-based Access 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, ignition system, exhaust system, cooling system, lubrication system, engine electrical, automatic transmission Chassis: Suspension (front and rear), steering system, brake system (front and rear), wheels and tires Electrical: Body control module, instrument cluster, lighting, power accessories (windows, locks, seats), HVAC controls, audio system, safety systems (airbags, ABS, traction control), wiring diagrams Body: Exterior body panels, interior trim, doors, windows, glass, roof system, bumpers Procedures Included Maintenance: Scheduled maintenance, fluid checks and changes, filter replacements, lubrication, tune-ups Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnostics, component testing Repair: Component removal and installation, sub-assembly repair, major overhauls (engine, transmission), body repair, electrical component replacement Calibration: Throttle body relearn, ABS sensor calibration, TPMS initialization Technical Depth Depth: Factory-level diagnostics, detailed component specifications, torque values, electrical schematics, precise repair instructions 📊 Manual Specifications File Format Software Access: Web-based, requires internet connection and browser Print Quality Digital Rendering: High-resolution, clear diagrams and text Binding Type Binding: N/A (digital) Paper Type Paper Type: N/A (digital) ⚙️ Engine Specifications Primary Engine Engine 1: 4.2L Atlas LL8 Inline-6 Engine 1 Displacement: 4157 cc Engine 1 Bore X Stroke: 95.5 mm x 97.5 mm Engine 1 Compression Ratio: 10.0:1 Engine 1 Horsepower: 285 hp @ 6000 rpm Engine 1 Torque: 275 lb-ft @ 4600 rpm Engine 2: 5.3L Vortec LY5 V8 Engine 2 Displacement: 5328 cc Engine 2 Bore X Stroke: 96.0 mm x 92.0 mm Engine 2 Compression Ratio: 9.5:1 Engine 2 Horsepower: 300 hp @ 5200 rpm Engine 2 Torque: 330 lb-ft @ 4000 rpm Fuel System Fuel Delivery: Multi-port Fuel Injection (MPFI) Performance Aspirated: Naturally Aspirated Valvetrain: SOHC (4.2L I6), OHV 2 Valves per Cylinder (5.3L V8) 🔧 Transmission Standard Transmission Type: 4-speed Automatic 4L60-E (std on 4.2L I6) Optional Transmission Type Optional: 4-speed Automatic 4L70-E (std on 5.3L V8) Features Drive Options: RWD, 4WD Transmission Fluid Spec: Dexron-VI (preferred), Dexron-III H (acceptable) 📐 Dimensions Exterior Wheelbase: 113.0 inches (2870 mm) Length: 190.4 inches (4836 mm) Width: 74.7 inches (1897 mm) Height: 70.5 inches (1791 mm) Weights Curb Weight Min: 4534 lbs (2057 kg) Curb Weight Max: 4868 lbs (2208 kg) Cargo Cargo Volume Behind 2Nd Row: 39.0 cu ft (1104 L) Cargo Volume Max: 81.6 cu ft (2311 L) 🛡️ Safety Features Ratings NHTSA Front Driver Impact: 5 Stars NHTSA Front Passenger Impact: 5 Stars NHTSA Side Driver Impact: 5 Stars NHTSA Side Rear Passenger Impact: 5 Stars IIHS Driver Front Impact: Good Active Features ABS: Standard (4-wheel disc) Traction Control: Standard Stabilitrak: Optional on some trims Passive Features Airbags Front: Standard (driver and front passenger) Airbags Side Curtain: Optional (first and second row) 💡 Technology Features Infotainment Audio System: Available Bose premium audio, CD player, MP3 compatibility, optional rear-seat entertainment system Driver Assistance Parking Assist: Optional rear parking assist sensors Connectivity Onstar: Available OnStar safety and communication system 🔧 Maintenance Service Intervals Oil Change Interval: 7,500 miles (12,000 km) or 6 months, whichever comes first (synthetic oil recommended) Tire Rotation Interval: 7,500 miles (12,000 km) Spark Plug Replacement 4.2L: 100,000 miles (160,000 km) (platimum or iridium) Spark Plug Replacement 5.3L: 100,000 miles (160,000 km) (platimum or iridium) Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic (API Certified) Engine Oil Capacity 4.2L: 7 US quarts (6.6 Liters) Engine Oil Capacity 5.3L: 7 US quarts (6.6 Liters) Coolant Type: GM P/N 12346290, Dex-Cool (Orange, Long-Life) Brake Fluid Type: DOT 3 Known Issues Common Complaint 1: Front hub bearing failure Common Complaint 2: Intake manifold gasket leaks (LS-based V8 engines) Common Complaint 3: Radiator fan clutch failure (4.2L I6) Common Complaint 4: Rear main seal leaks 📚 Vehicle History Brand Heritage Gmc Legacy: General Motors Truck Company, known for trucks, SUVs, and commercial vehicles Model Evolution Envoy Lineage: Introduced in 1997 as a premium trim of the GMC Jimmy, became a standalone model in 2002, based on the GMT360 platform which replaced the earlier GMT330 (Jimmy/Bravada) Production Production Years: 2002-2009 Manufacturing Location: Moraine, Ohio, USA 🏆 Awards & Recognition Recognitions Safety Awards: Consistently achieved high safety ratings from NHTSA and IIHS during...