The 2004 Buick Lesabre, part of the Eighth Generation, is a vehicle known for its comfortable ride and spacious interior. Built on a platform that emphasizes a smooth driving experience, this model is powered by a robust 3.8L V6 OHV engine delivering approximately 205 horsepower and 230 lb-ft of torque, paired with a 4-speed automatic transaxle. Notable features include standard Anti-lock Braking System (ABS), available traction control, and a focus on passenger safety, evidenced by its 5-star NHTSA front impact rating. The Lesabre's design prioritizes comfort and practicality, making it a solid choice for everyday transportation and longer journeys. This comprehensive service and repair manual provides factory-derived information essential for maintaining and repairing the 2004 Buick Lesabre. It covers all key vehicle systems, including the engine, transmission, drivetrain, brakes, steering, suspension, climate control, electrical systems, and body. The manual details routine maintenance procedures, in-depth engine and transmission repair instructions, brake and suspension servicing, electrical diagnostics, and HVAC system repairs. With factory-level technical detail, including diagnostic trouble codes, system testing procedures, and step-by-step repair instructions with torque specifications, this resource is invaluable for DIY owners, independent repair shops, and automotive students seeking to ensure the optimal performance and longevity of their vehicle. 🏷️ Basic Information Identification Make: Buick Model: Lesabre Year: 2004 Production Code: Model Year 2004 Generation Generation Identifier: Eight Generation (Epsilon Platform based) 👋 Introduction Market Position Target Audience: DIY vehicle owners, independent repair shops, automotive students Competitive Analysis Advantage Over Print: Instant access, searchability, cost-effectiveness compared to older printed manuals Key Features Software Provider: RepairSurge Licensing: Officially licensed, derived from OE (Original Equipment) materials Access Duration: 1-year access included, with discounts for extensions Compatibility: Compatible with PC, laptop, smartphone, tablet via web browser 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive factory-derived service and repair information Key Systems: Engine, Transmission, Drivetrain, Brakes, Steering, Suspension, Climate Control, Electrical, Body, Interior Page Count Estimated Page Count: Likely exceeds 2000 pages (typical for full service manuals) Manual Type Manual Format: Service and Repair Manual Software Language Language: English Format Delivery Format: PDF Download (Software/Digital Access) 📖 Manual Coverage Systems Covered Engine Mechanical: Internal engine components, cylinder head, block, crankshaft, pistons, camshafts, valve train, timing systems Engine Performance: Fuel system, ignition system, emissions control, cooling system, lubrication system, engine diagnostics Transmission Drivetrain: Automatic transmission (4T65-E), transaxle, drive axles, CV joints, differential Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System), brake fluid, hydraulic system Steering: Power steering system, steering column, rack and pinion, linkages Suspension: Front and rear suspension components, shock absorbers, struts, springs, control arms, ball joints, bushings Electrical System: Battery, charging system, starting system, lighting, instrumentation, power windows, locks, mirrors, accessories HVAC: Heating, ventilation, and air conditioning (HVAC) system, compressor, refrigerant, climate control panel Body Interior: Body panels, doors, hood, trunk, interior trim, seats, airbags Wiring Diagrams: Detailed electrical wiring schematics for all vehicle systems Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection/replacement Engine Repair: Engine overhaul, head gasket replacement, timing chain/belt service, fuel injector service, intake/exhaust manifold repair Transmission Service: Transmission fluid and filter change, torque converter replacement, internal transmission repair Brake Service: Brake pad and rotor replacement, caliper servicing, brake line repair, ABS system diagnostics and repair Suspension Steering Repair: Component replacement (shocks, struts, ball joints, tie rods), alignment procedures Electrical Diagnostics: Troubleshooting electrical faults, module testing, component replacement, wiring harness repair HVAC Repair: Refrigerant recharging, compressor replacement, leak detection, component diagnosis Body Work: Panel replacement, door hinge/latch repair, cosmetic trim replacement Troubleshooting Guides: Diagnostic flowcharts and common symptom-to-cause tables Technical Depth Depth Level: Factory-level technical detail, suitable for professional technicians and experienced DIYers Diagnostic Capabilities: Includes diagnostic trouble codes (DTCs), system testing procedures, and component specifications Repair Procedures: Step-by-step instructions with torque specifications, special tool requirements, and critical clearances 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable within the software interface Printability: Printable pages via the software Print Quality Image Resolution: High-resolution diagrams and illustrations (derived from OE materials) Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: V6 OHV (Overhead Valve) Engine Displacement: 3.8L (231 cu. in.) Engine Code: L36 (Series II 3800) Fuel Delivery: Sequential Fuel Injection (SFI) Performance Horsepower: Approx. 205 hp @ 5200 rpm Torque: Approx. 230 lb-ft @ 3200 rpm Fuel System Fuel Type: Unleaded Gasoline (87 octane recommended) Fuel Capacity: 18.0 gallons (68 L) 🔧 Transmission Standard Transmission Type: 4-speed Automatic Transaxle Transmission Model: 4T65-E Features Traction Control: Optional Traction Control System (TCS) 📐 Dimensions Exterior Length: 200.0 inches (5080 mm) Width: 70.5 inches (1791 mm) Height: 56.7 inches (1440 mm) Wheelbase: 110.5 inches (2807 mm) Weights Curb Weight: Approx. 3,600 - 3,800 lbs (1633 - 1724 kg) Cargo Trunk Volume: 16.4 cubic feet (464 L) 🛡️...