🏷️ Basic Information Identification Make: Cadillac Model: Deville Year: 1999 Generation Generation Code: Sixth Generation (1994-1999) Codes Platform: K-Body 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, Cadillac owners seeking detailed repair information. Competitive Analysis Comparison To Print: More convenient, less expensive, and instantly accessible compared to traditional printed manuals. Offers searchability and multimedia integration (potential). Key Features Accessibility: Accessible from any internet-enabled device. Information Source: Licensed from OE materials, providing factory-level accuracy. User Interface: Designed for ease of use with push-button information access. 📋 Manual Details Coverage Areas Supported Models: 1999 Cadillac Deville (all trims) Page Count Estimated Page Count: 1500+ Manual Type Manual Type: Official Service and Repair Manual Software Language Language: English Format Format: Online Software (Web-based Access) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, block, pistons, crankshaft, camshaft, valve train, oil pump, cooling system, lubrication Engine Performance: Fuel delivery, fuel injection system (SEFI), ignition system, emissions control, engine management system (ECM) Transmission: Automatic transmission (4T80-E), transmission control module (TCM), gear selection, hydraulic system, torque converter Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System), traction control system (TCS), brake fluid, hydraulic components Suspension: Front and rear independent suspension, struts, shock absorbers, springs, control arms, bushings, steering knuckles Steering: Power steering system, steering column, rack and pinion, steering linkage Electrical System: Battery, charging system (alternator), starting system (starter motor), wiring diagrams, fuses, relays, lighting system HVAC: Heating, ventilation, and air conditioning (HVAC) system, climate control, refrigerant, compressor, evaporator, condenser Body And Trim: Body panels, doors, windows, locks, interior trim, exterior trim, bumpers, glass Chassis And Frame: Frame construction, body mounting, structural components Safety Systems: Airbags (SRS), seat belts, anti-theft system Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication, tire rotation Diagnostics: Troubleshooting procedures, diagnostic trouble codes (DTCs), symptom analysis Repair: Component removal and installation, adjustments, calibrations, rebuild procedures Wiring Diagrams: Complete electrical system wiring diagrams with component locations Torque Specifications: Detailed torque specifications for all fasteners Specifications And Tolerances: Detailed technical specifications and allowable tolerances for all components Technical Depth Depth Of Coverage: Comprehensive; covers basic maintenance to complete engine and transmission rebuilds, advanced diagnostics, and electrical system troubleshooting. 📊 Manual Specifications File Format Software Compatibility: Compatible with any PC, laptop, smartphone, or tablet with an internet connection and web browser. Print Quality Print Option: Printable pages (user dependent) Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) Access Duration Subscription Period: 1 Year (with options for extension) Licensing Licensing: Officially Licensed; derived from OE (Original Equipment) materials. ⚙️ Engine Specifications Primary Engine Engine Code: L37 (Northstar V8) Engine Type: 4.6L DOHC 32-Valve V8 Aluminum Engine Performance Horsepower: 275 hp @ 6000 rpm Torque: 295 lb-ft @ 4400 rpm Fuel System Fuel Delivery: Sequential Fuel Injection (SFI) Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Management ECM Model: Delco Electronics Engine Control Module (ECM) 🔧 Transmission Standard Transmission Type: 4-speed Automatic Transaxle Transmission Model: 4T80-E Features Transmission Features: Electronically controlled with overdrive, performance algorithm shifting (PAS), driver-selectable modes (e.g., Normal, Sport). Fluid Specification Transmission Fluid: Dexron III (or Dexron VI equivalent) 📐 Dimensions Exterior Wheelbase: 115.3 inches (2929 mm) Length: 207.4 inches (5268 mm) Width: 74.4 inches (1890 mm) Height: 55.4 inches (1407 mm) Weights Curb Weight: approximately 3900-4100 lbs (1769-1860 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (Driver and Passenger) Active Features ABS: Standard (Bosch 5.7 ABS system) Traction Control: Standard (Traction Control System - TCS) Passive Features Airbags: Driver and front passenger airbags (Supplemental Restraint System - SRS) Seat Belts: Three-point front seat belts with pretensioners, rear seat belts. 💡 Technology Features Infotainment Audio System: Premium Bose sound system with cassette and CD player options. Climate Control: Dual-zone automatic climate control with digital display. Driver Assistance Parking Assist: Available Ultrasonic Rear Parking Assist (URPA). Connectivity Onstar: Optional OnStar system for emergency assistance and vehicle diagnostics. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months, whichever comes first (with synthetic oil). Coolant Change: Every 50,000 miles or 5 years, whichever comes first. Fluid Specifications Engine Oil: SAE 5W-30 (Synthetic recommended for Northstar engine) Coolant: GM specification 61027M, Dex-Cool extended life coolant (Orange) Brake Fluid: DOT 3 Power Steering Fluid: GM specification P-S 25504745 or Dexron III/VI Known Issues Northstar Head Gaskets: Susceptible to head gasket failures due to uneven coolant flow and torque-to-yield head bolts. Manual provides procedures for inspection and repair, including updated bolt torque sequences. DTC P0420: Catalyst System Efficiency Below Threshold. Often related to exhaust leaks or failing catalytic converters. Manual details diagnostic steps for this code. ABS Wheel Speed Sensors: Can fail, leading to ABS and Traction Control warnings. Manual covers testing and replacement of sensors. Evaporator Core Leaks: Common HVAC issue, often resulting in a coolant smell inside...