🏷️ Basic Information Identification Make: Cadillac Model: Brougham Year: 1991 Codes Platform: GM C-body Chassis Code: V-body 👋 Introduction Market Position Vehicle Segment: Full-size luxury sedan Target Audience: Owners and independent repair shops seeking comprehensive service information. Competitive Analysis Manual Advantage: Licensed OE material, convenient online access, up-to-date information compared to older printed manuals. Key Features Convenience: Instant access via web browser on multiple devices. Accuracy: Derived from OE (Original Equipment) materials, ensuring factual accuracy. Cost Effectiveness: Saves money compared to dealership repairs and often older, harder-to-find printed manuals. Licensing: Officially licensed product. 📋 Manual Details Coverage Areas Primary Focus: Service and Repair Scope: Comprehensive vehicle repair and maintenance Page Count Estimated Pages: Likely extensive, mirroring factory service manuals (typically 1000+ pages for a full set). Manual Type Type: Software-based Service and Repair Manual Language Language: English Format Access Method: Online Access (Web Browser), Year-long subscription Compatibility: PC, Laptop, Smartphone, Tablet (Requires Internet Connection and Web Browser) 📖 Manual Coverage Systems Covered Engine Mechanical: Yes, including diagnosis, overhaul, and component replacement. Engine Electrical: Yes, including ignition, fuel injection, sensors, and ECU. Transmission: Yes, automatic transmission diagnosis and repair. Drivetrain: Yes, including rear-wheel drive components (driveshaft, differential, axles). Suspension: Yes, including front and rear suspension components, alignment. Steering: Yes, including power steering system. Brakes: Yes, including hydraulic system, ABS (if equipped), and component replacement. Electrical System: Yes, extensive coverage of wiring diagrams, components, and diagnostics. HVAC: Yes, including heating, ventilation, and air conditioning systems. Body And Trim: Yes, likely includes information on interior and exterior components. Diagnostics: Yes, fault codes, troubleshooting guides, and diagnostic procedures. Procedures Included Preventive Maintenance: Yes, oil changes, filter replacements, fluid checks, tune-ups. Troubleshooting: Yes, systematic guides for diagnosing common and uncommon problems. Repair: Yes, step-by-step instructions for component replacement and system repair. Rebuilding: Yes, likely includes procedures for major component overhauls (e.g., engine, transmission). Technical Depth Level: Factory-level detail, suitable for professional technicians and experienced DIYers. Diagnostics Capability: Advanced, including wiring diagrams and specific diagnostic tests. 📊 Manual Specifications File Format Software Platform: Web-based application Print Quality Digital Resolution: High-resolution, optimized for screen viewing. Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: L05 (5.0L V8) Engine Type: 5.0L (305 cu in) V8, Throttle Body Injection (TBI) Bore X Stroke: 3.736 in x 3.480 in (94.9 mm x 88.4 mm) Compression Ratio: 8.3:1 Performance Horsepower: 140 hp @ 3200 rpm (approximate, may vary slightly by specific configuration) Torque: 250 lb-ft @ 2000 rpm (approximate) Fuel System Fuel Delivery: Throttle Body Injection (TBI) Fuel Type: Unleaded Regular (87 Octane) Fluid Specifications Engine Oil Type: API Service SG or SF, SAE 10W-30 (Check manual for specific climate recommendations) Coolant Type: GM Type 1 Antifreeze/Coolant (Ethylene Glycol based) Oil Capacity: 5 Quarts (4.7 Liters) with filter 🔧 Transmission Standard Transmission Type: 4-speed Automatic (4L60) Optional Optional Transmission: N/A (4L60 was standard for this powertrain) Features Transmission Control: Electronic Control Module (ECM) Fluid Specifications Transmission Fluid Type: Dexron-III Automatic Transmission Fluid (ATF) Transmission Fluid Capacity: Approximately 5.5 Quarts (5.2 Liters) for a fluid change, check dipstick. 📐 Dimensions Exterior Wheelbase: 121.2 inches (3078 mm) Length: 218.2 inches (5542 mm) Width: 76.9 inches (1953 mm) Height: 55.6 inches (1412 mm) Weights Curb Weight: Approx. 4,400 - 4,600 lbs (2000 - 2087 kg) 🛡️ Safety Features Ratings NHTSA Frontal Crash Rating: Not available for this specific year/model in a easily summarized format as required by modern standards. Active Features ABS: Anti-lock Braking System (ABS) available on some models/options. Passive Features Airbags: Driver's side airbag standard. Seat Belts: Front and rear seat belts with shoulder belts. 💡 Technology Features Infotainment Audio System: AM/FM stereo with cassette player, optional CD player, and premium sound systems. Driver Assistance Cruise Control: Standard cruise control. Connectivity Cellular Features: N/A (No integrated cellular or advanced connectivity features for the era). 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 - 5,000 miles or 6 months, whichever comes first (check manual for exact recommendation based on driving conditions). Tire Rotation Interval: Every 5,000 - 7,500 miles Transmission Service: Inspect fluid every 30,000 miles, change fluid and filter as needed or every 60,000 miles (refer to manual). Fluid Specifications Power Steering Fluid: Dexron-III ATF Brake Fluid Type: DOT 3 Brake Fluid Known Issues Engine Performance: TBI systems can be prone to clogging and rough idling if not maintained. Fuel pump issues can occur. Suspension And Steering: Worn ball joints, tie rod ends, and power steering leaks are common on older vehicles. Electrical System: Aging wiring harnesses, faulty relays, and climate control system issues can be present. HVAC: Compressor clutch failure, leaks in the A/C system, and heater core issues. 📚 Vehicle History Brand Heritage Cadillac Legacy: Cadillac has a long history of producing large, luxurious American sedans. Model Evolution...