🏷️ Basic Information Identification Make: Oldsmobile Model: Silhouette Year: 2004 Generation Generation: Third Generation (G-Body) Codes Platform Code: GM U-body 👋 Introduction Market Position Positioning: Essential DIY and professional repair resource for the 2004 Oldsmobile Silhouette minivan. Competitive Analysis Competitors: Haynes, Chilton, factory service manuals (print). Advantages: Convenience of online access, up-to-date information, licensed OE data, comprehensive coverage, lower cost than some printed manuals. Key Features Features: Instant access, searchable text, detailed diagrams and illustrations, step-by-step procedures, troubleshooting guides. 📋 Manual Details Coverage Areas Primary Coverage: Complete Service and Repair Diagnostic Coverage: Advanced Diagnostics and Troubleshooting Maintenance Coverage: Scheduled Maintenance, Fluid Changes, Filter Replacements Repair Coverage: Engine, Drivetrain, Suspension, Steering, Brakes, Electrical, HVAC, Body Technical Information: Wiring Diagrams, Component Locations, Specifications Page Count Estimated Page Count: Thousands of pages (digital format) Manual Type Type: Software-based Service and Repair Manual Source: Licensed OE Materials (RepairSurge) Language Language: English Format Format: Online Access (Web Browser) Accessibility: PC, Laptop, Smartphone, Tablet Compatible Access Duration Duration: 1 Year Subscription (with renewal options) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, ignition system, exhaust system, cooling system Drivetrain: Automatic transmission (4T65-E), transaxle, drive axles, differential Chassis: Front suspension (MacPherson strut), rear suspension (independent trailing arm), steering system (rack and pinion), braking system (front disc, rear drum/disc) Electrical: Battery, charging system, starting system, lighting, instrument cluster, body control module (BCM), comfort controls HVAC: Air conditioning, heater, climate control system, blower motor, refrigerant circuit Body: Body panels, doors, glass, trim, interior components, power accessories (windows, locks, seats) Procedures Included Maintenance Procedures: Oil change, filter replacement, fluid checks and top-offs, spark plug replacement, belt inspection/replacement, tire rotation Repair Procedures: Engine component replacement, transmission service/rebuild, brake pad/rotor replacement, suspension component replacement, steering rack replacement, electrical component diagnosis and replacement Diagnostic Procedures: OBD-II diagnostics, DTC interpretation, symptom-based troubleshooting, wiring harness testing, component testing Technical Specifications: Torque specifications, clearances, timing settings, electrical resistance values, pressures Technical Depth Depth: Comprehensive, from basic maintenance to complex diagnostics and component-level repair 📊 Manual Specifications File Format Format: Web-based application Print Quality Quality: N/A (Digital) Binding Type Type: N/A (Digital) Paper Type Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Code: L36 Engine Type: 3.4L V6 (3400 SFI) Displacement: 3.4 Liters (207 cubic inches) Bore X Stroke: 92.0 mm x 82.0 mm (3.62 in x 3.23 in) Compression Ratio: 9.4:1 Performance Horsepower: 180 hp @ 4700 rpm Torque: 205 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (SFI) Fuel Type: Unleaded Regular (87 octane) Ignition Type: Distributorless Ignition System (DIS) 🔧 Transmission Standard Transmission Type: 4-speed Automatic Transaxle Transmission Model: 4T65-E Optional Optional Transmissions: None for 2004 Silhouette Features Features: Driver Shift Control (DSC), electronically controlled overdrive Fluid Specifications Fluid Type: Dexron III/VI Automatic Transmission Fluid (ATF) Capacity: Approx. 9.5 quarts (8.9 liters) 📐 Dimensions Exterior Length: 198.9 inches (5052 mm) Width: 71.9 inches (1826 mm) Height: 66.5 inches (1689 mm) Wheelbase: 119.0 inches (3023 mm) Front Track: 61.8 inches (1570 mm) Rear Track: 62.4 inches (1585 mm) Weights Curb Weight: Approx. 3800-4000 lbs (1724-1814 kg) Gross Vehicle Weight Rating Gvwr: Approx. 5600 lbs (2540 kg) 🛡️ Safety Features Ratings NHTSA Rollover Rating: 4 out of 5 stars (for 2004 models) Active Features Active Safety: Anti-lock Braking System (ABS), Traction Control System (TCS) Passive Features Passive Safety: Front airbags, optional side-impact airbags, front seatbelt pre-tensioners, LATCH child seat anchors 💡 Technology Features Infotainment Infotainment Features: AM/FM stereo, CD player, optional cassette player, optional rear-seat entertainment system (DVD player), optional premium audio system. Driver Assistance Driver Assistance Features: Cruise control, optional rear parking assist sensors. Connectivity Connectivity Options: N/A (basic connectivity features for the era, no Bluetooth or USB ports). 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-7,500 miles (depending on oil type and driving conditions) or as indicated by the Oil Life Monitor system. Air Filter Replacement: Every 15,000-30,000 miles or as needed based on inspection. Spark Plug Replacement: Every 100,000 miles (platinum or iridium plugs). Transmission Fluid Change: Every 30,000-60,000 miles or as per manufacturer recommendation for severe service. Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic Blend or Full Synthetic Engine Oil Capacity: 4.5 quarts (4.3 liters) with filter change Coolant Type: GM P/N 12346120 (Orange) or equivalent silicate-free, long-life coolant Coolant Capacity: Approx. 13.5 quarts (12.8 liters) Known Issues Common Problems: Power steering pump leaks, HVAC blower motor resistor failure, intake manifold gasket leaks, transmission solenoid issues, power window motor failure, rust on body panels (especially rear wheel arches). 📚 Vehicle History Brand Heritage Brand Legacy: Oldsmobile was one of America's oldest automotive brands, known for innovation and a broad range of vehicles. Model Evolution Generation Transition: The 2004 Silhouette is part of the third generation of GM's U-body minivans, shared with Chevrolet Venture and Pontiac Montana/Trans Sport. It was an evolution of the...