The Toyota Sienna, first introduced for the 1999 model year as part of its 1st Generation (XL10), represents Toyota's entry into the minivan segment, built with a reputation for reliability and quality. This versatile vehicle, manufactured in Georgetown, Kentucky, is powered by a 3.0L V6 DOHC 24V engine delivering 194 hp and 209 lb-ft of torque, paired with a 4-speed automatic transmission and available in Front-Wheel Drive (FWD) or All-Wheel Drive (AWD) configurations. Known for its spacious interior, comfort, and practical design, the Sienna was engineered to meet the needs of families, offering substantial cargo capacity and features like available power sliding doors and a power liftgate. This comprehensive service and repair manual is designed to assist owners, DIY enthusiasts, and professional technicians in maintaining and repairing the 1999 Toyota Sienna (XL10 chassis code). It covers all major vehicle systems, including engine, drivetrain, transmission, suspension, steering, brakes, electrical systems, climate control, body, and interior components. The manual offers detailed procedures for scheduled maintenance, troubleshooting, diagnostics, component repair and installation, and provides essential technical specifications such as torque values and fluid capacities, drawing from OE data for accuracy. 🏷️ Basic Information Identification Make: Toyota Model: Sienna Year: 1999 Generation Generation: 1st Generation (XL10) Codes Chassis Code: XL10 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, Toyota Sienna owners Competitive Analysis Advantage: Official licensing, comprehensive digital format, up-to-date information compared to older printed manuals Key Features Convenience: Instant online access, no physical storage required Cost Effectiveness: Saves money on costly repair shop labor Information Accuracy: Derived from OE (Original Equipment) data 📋 Manual Details Coverage Areas Primary Coverage: 1999 Toyota Sienna Service & Repair Scope: Comprehensive vehicle service and repair Page Count Estimated Pages: Thousands (digital format, comprehensive) Manual Type Type: Service and Repair Manual Software Language Language: English Format Format: PDF Download (Licensed Software) Access Duration: 1 Year Access (renewable) 📖 Manual Coverage Systems Covered Engine: Full engine diagnostics, repair, and overhaul Drivetrain: Front-wheel drive (FWD) and All-wheel drive (AWD) systems, differentials, axles Transmission: Automatic transmission (ECT) repair, maintenance, and diagnostics Suspension: Front and rear suspension components, shocks, struts, springs, bushings Steering: Power steering system, steering rack, column, tie rods Brakes: Brake system diagnostics, repair, ABS system, master cylinder, calipers, pads, rotors Electrical: Complete electrical system schematics, wiring diagrams, component testing, diagnosis Climate Control: Heating, Ventilation, and Air Conditioning (HVAC) system diagnosis and repair Body And Interior: Body panel repair, interior trim, seats, doors, windows, locks Cooling System: Radiator, water pump, thermostat, coolant system diagnostics Fuel System: Fuel pump, injectors, fuel lines, fuel tank, EVAP system Exhaust System: Exhaust manifolds, catalytic converter, mufflers, pipes Safety Systems: Airbag system, SRS components, seatbelt service Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, tune-ups Troubleshooting: Diagnostic procedures for common and complex issues, DTC interpretation Repair: Step-by-step repair instructions for all major vehicle components Diagnostics: On-Board Diagnostics (OBD-II) system, scanner usage, data interpretation Installation: Component replacement and installation procedures Specifications: Torque specifications, clearances, alignments, fluid capacities Technical Depth Depth: Factory-level detail, suitable for professional technicians and advanced DIYers Information Source: Licensed OE (Original Equipment) materials 📊 Manual Specifications File Format Format: PDF (Searchable text, printable) Quality: High-resolution, clear text and diagrams Print Quality Printability: Printable pages for offline use Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) Software Features Search Functionality: Advanced keyword search within the PDF Compatibility: PC, Laptop, Smartphone, Tablet (via web browser) ⚙️ Engine Specifications Primary Engine Engine Type: 3.0L V6 DOHC 24V (1MZ-FE) Performance Horsepower: 194 hp @ 5200 rpm Torque: 209 lb-ft @ 4400 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) Engine Management ECU: Engine Control Unit (ECU) with integrated diagnostics Timing Timing Belt: Timing belt driven (Service interval for replacement is critical) 🔧 Transmission Standard Type: 4-Speed Electronically Controlled Automatic Transmission (ECT) Optional Drivetrain Options: Front-Wheel Drive (FWD) and All-Wheel Drive (AWD) Features Overdrive: Yes, 4th gear is overdrive Fluid Specifications Fluid Type: Toyota ATF WS (World Standard) or equivalent DEXRON II/III (Check manual for exact spec) 📐 Dimensions Exterior Length: Approx. 193.1 inches Width: Approx. 71.5 inches Height: Approx. 67.1 inches Wheelbase Wheelbase: Approx. 112.2 inches Weights Curb Weight: Approx. 3900-4100 lbs (depending on FWD/AWD) Cargo Cargo Volume: Varies with seat configuration, substantial capacity 🛡️ Safety Features Ratings NHTSA Front Impact: 4-Star Driver, 4-Star Passenger (for models with airbags) IIHS Side Impact: Acceptable (for models with side airbags, if equipped) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Available Traction Control System (TRAC) on some AWD models Passive Features Airbags: Driver and front passenger airbags standard Seatbelts: 3-point seatbelts with pretensioners for front occupants 💡 Technology Features Infotainment Audio System: Factory AM/FM/Cassette/CD player options Speakers: Various speaker configurations available depending on trim level Driver Assistance Cruise Control: Standard cruise...