🏷️ Basic Information Identification Make: Buick Model: Reatta Year: 1991 Vehicle Type: Personal Luxury Sports Coupe Codes Vin Prefix: 1G2 👋 Introduction Market Position Positioning: The Buick Reatta was positioned as a premium, front-wheel-drive personal luxury sports coupe, targeting buyers seeking a stylish and comfortable alternative to European sports coupes. Competitive Analysis Competitors: Competed with vehicles like the Ford Thunderbird SC, Chevrolet Camaro/Pontiac Firebird (higher trims), and certain Japanese sports coupes of the era. Key Features Manual Advantage: Provides vehicle-specific, technician-level information for accurate and efficient maintenance and repair, eliminating the need for generic guides. Digital Benefits: Offers convenience of digital access, searchable content, printable specific pages, and protection from physical wear and tear of traditional manuals. 📋 Manual Details Coverage Areas Coverage: All Models & All Repairs A-Z Page Count Estimated Page Count: Extensive (as it's a complete service manual) Manual Type Type: Factory Service and Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel Service, Emission Control, Intake/Exhaust/Cooling, Lube, Ignition, Starting/Charging, Automatic Transmission, Manual Transmission (if applicable), Transfer Case (if applicable), Drive Shaft, Differential, Axle Suspension Chassis And Body: Brake Control, Brake Systems, Parking Brake, Steering Column, Power Steering, Tire & Wheel, Suspension Electrical And Accessories: Electrical System, Air Conditioning, Supplemental Restraint System (SRS), Seat Belt Systems, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Locks, Meter/Audio/Visual, Horn, Windshield/Glass/Mirrors, Instrument Panel, Engine Hood/Doors, Exterior & Interior Trim, Multiplex/CAN Communication (early implementation) Procedures Included Diagnostics And Troubleshooting: Comprehensive diagnostic procedures, fault code interpretation, troubleshooting flowcharts Maintenance: Scheduled maintenance, fluid checks and changes, filter replacements, tune-up procedures Repair And Rebuild: Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation Specifications And Data: Tightening torques, clearances, fluid capacities, electrical values, diagnostic parameters Technical Depth Depth: Factory-level diagnostic and repair procedures, suitable for dealership technicians and advanced DIY enthusiasts 📊 Manual Specifications File Format Compatibility: Windows (Vista32/64, XP, ME, 98, NT, 2000) and Mac compatible Requirements: Adobe PDF Reader, Winzip (free) Print Quality Printability: All pages printable, allowing for enlarged image printing Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: 3.8L (3800 cc) naturally aspirated V6 Engine Code: L27 (likely, for 1991) Performance Horsepower: 170 hp @ 4800 rpm (approx.) Torque: 220 lb-ft @ 2400 rpm (approx.) Fuel System Fuel Delivery: Sequential Central Multi-Port Fuel Injection (SCPI) Recommended Fuel: 87 Octane Unleaded Gasoline Cooling Cooling System Type: Liquid-cooled 🔧 Transmission Standard Transmission Type: 4-speed automatic transaxle Transmission Code: THM-440-T4 (likely) Optional Optional Transmission: N/A (only automatic offered for 1991) Features Transmission Features: Electronically controlled, overdrive 📐 Dimensions Exterior Length: 191.7 inches Width: 70.2 inches Height: 50.3 inches Wheelbase: 100.5 inches Weights Curb Weight: 3,530 lbs (approx.) Gross Vehicle Weight Rating: 4,300 lbs (approx.) 🛡️ Safety Features Ratings NHTSA Frontal Impact Driver: Not Rated (Vehicle Safety Standards of the era were less comprehensive) NHTSA Frontal Impact Passenger: Not Rated (Vehicle Safety Standards of the era were less comprehensive) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Not Standard Passive Features Airbags: Driver and passenger airbags (SRS) were standard. Seat Belts: Three-point front seat belts, shoulder belts were height-adjustable. Rollover Protection: Reinforced roof structure 💡 Technology Features Infotainment Audio System: Optional Delco-Bose premium sound system with cassette player, AM/FM stereo, and graphic equalizer. Climate Control: Automatic climate control with digital display was available on higher trims. Driver Assistance Cruise Control: Standard cruise control. Connectivity Early Multiplex: Features an early form of multiplexed wiring for certain functions, requiring specific diagnostic approaches detailed in the manual. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles or 3 months, whichever comes first. Air Filter Replacement: Every 15,000 miles or 12 months. Spark Plug Replacement: Every 30,000 miles. Fluid Specifications Engine Oil Type: API SG or SG/CD, SAE 5W-30 (or 10W-30 in warmer climates). Transmission Fluid Type: Dexron III Automatic Transmission Fluid. Coolant Type: GM Geniune Universal Coolant (50/50 mix with distilled water). Brake Fluid Type: DOT 3 Brake Fluid. Known Issues Common Problems: Electrical gremlins, particularly with power accessories and sensors; aging suspension bushings; potential for starter/alternator issues; interior trim degradation. Powertrain Reliability: The 3800 V6 engine is generally considered robust and reliable, but proper maintenance is crucial. 📚 Vehicle History Brand Heritage Brand Focus: Buick, as a division of General Motors, historically focused on upscale, comfortable vehicles, transitioning into more performance-oriented and stylish models in later years. Model Evolution Reatta Concept: The Reatta was conceived as a more modern, two-seater personal luxury coupe, moving away from Buick's traditional large sedan image. It was initially based on a modified Riviera platform. Production Start: 1988 (for the 1989 model year) Production End: 1991 Production Manufacturing Location: Lansing Craft Centre, Lansing, Michigan, USA Production Volume: Relatively low production numbers compared to mainstream models, contributing...