Premium personal luxury coupe, targeting a sophisticated buyer
Competitive Analysis
Competitors:
Ford Thunderbird, Chevrolet Lumina Coupe (later models), Chrysler LeBaron Coupe
Key Features
Design:
Two-seater, front-wheel-drive, retractable hardtop available (though not explicitly mentioned for 1990 in this manual's context, it was a defining Reatta feature)
Manual Value Proposition:
Provides OEM-level repair information, enabling owners to perform maintenance and repairs, saving costs and fostering self-sufficiency.
📋 Manual Details
Coverage Areas
Primary Coverage:
Full vehicle service and repair
Scope:
All models and all repairs A-Z
Page Count
Estimated Page Count:
Extensive (specific count not provided, but indicated as comprehensive)
Manual Type
Type:
Factory Service and Repair Manual
Language
Language:
English
Format
Format:
PDF Download
📖 Manual Coverage
Systems Covered
Engine:
Detailed service, diagnosis, and repair
Control System:
Diagnosis and repair
Mechanical:
Comprehensive repair procedures
Fuel System:
Service specifications and repair
Emission Control:
Service and diagnosis
Cooling System:
Service and repair
Lubrication System:
Service specifications
Ignition System:
Service and repair
Charging System:
Diagnosis and repair
Automatic Transmission:
Service and repair
Manual Transmission:
Service and repair
Drive Axle:
Service and repair
Suspension:
Service and repair
Wheel And Tire:
Service and specifications
Brake Control:
Service and repair
Brake System:
Detailed service and repair
Parking Brake:
Service and repair
Steering Column:
Service and repair
Power Steering:
Service and repair
Air Conditioning:
Service and repair
Supplemental Restraint System:
Service and safety precautions
Seat Belt System:
Service and repair
Engine Immobilizer:
Diagnosis and repair
Cruise Control:
Service and repair
Wiper And Washer:
Service and repair
Door Lock System:
Service and repair
Meter And Audio Visual:
Service and repair
Horn System:
Service and repair
Windshield Glass Mirror:
Service and repair
Instrument Panel:
Service and repair
Seat System:
Service and repair
Engine Hood Door:
Service and repair
Exterior Interior Trim:
Service and repair
Electrical System:
Extensive diagrams and troubleshooting
Multiplex Can Communication:
Diagnosis and repair
Procedures Included
Maintenance:
Scheduled maintenance procedures
Diagnostics:
Step-by-step diagnostic procedures for all systems
Repair:
Complete repair instructions for all components and systems
Troubleshooting:
Troubleshooting guides and fault finding charts
Wiring Schematics:
Complete and detailed wiring diagrams
Technical Depth
Depth:
Factory-level detail, suitable for professional technicians and advanced DIYers
Illustrations
Quality:
High-quality diagrams and illustrations
📊 Manual Specifications
File Format
Format:
PDF
Print Quality
Printability:
All pages printable
Zoom Capability:
Images can be blown up and printed enlarged
Binding Type
Binding:
Digital (PDF) - No physical binding
Paper Type
Paper Type:
N/A (Digital Format)
Compatibility
Operating Systems:
Windows Vista (32/64), XP, ME, 98, NT, 2000, and Mac
Requirements
Software Requirements:
Adobe PDF Reader and Winzip (free online)
⚙️ Engine Specifications
Primary Engine
Engine Type:
3.8L (3800 cc) V6 OHV
Engine Code:
L27 (likely for 1990)
Performance
Horsepower:
165 hp @ 4400 rpm (estimated for 1990 L27)
Torque:
210 lb-ft @ 2800 rpm (estimated for 1990 L27)
Fuel System
Fuel Delivery:
Sequential Port Fuel Injection (SFI)
Fuel Type:
Unleaded gasoline
Cooling System
Cooling Type:
Liquid-cooled
Ignition System
Ignition Type:
Distributorless Ignition System (DIS) or Distributor Ignition (DI) depending on exact L27 variant
🔧 Transmission
Standard
Type:
4-speed automatic overdrive
Transmission Model:
GM 4T60-E (likely)
Optional
Optional Transmission:
None offered for 1990
Features
Drive Layout:
Front-wheel drive (FWD)
📐 Dimensions
Exterior
Length:
187.7 inches (approx.)
Width:
70.3 inches (approx.)
Height:
51.7 inches (approx.)
Weights
Curb Weight:
3,374 lbs (approx.)
🛡️ Safety Features
Ratings
NHTSA Driver Front Impact:
Not specifically rated for 1990, but contemporary GM vehicles generally performed adequately.
Active Features
ABS:
Anti-lock Braking System (ABS) standard
Passive Features
Airbags:
Driver and passenger airbags standard
Seat Belts:
Front three-point seat belts with pretensioners
💡 Technology Features
Infotainment
Audio System:
AM/FM stereo with cassette and optional CD player, analog and digital displays
Driver Assistance
Cruise Control:
Standard feature
Connectivity
Multiplex System:
Features a multiplexed electrical system for control and communication between modules.
Interior Features
Climate Control:
Automatic climate control system available
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,000 miles or 3 months (typical for the era, consult manual for specifics)
Tune Up Interval:
Refer to manual for specific spark plug and filter replacement intervals.
Fluid Specifications
Engine Oil Type:
API Service SG or SH, SAE 5W-30 or 10W-30 (consult manual for exact grade and capacity)
Coolant Type:
GM Goodwrench Super Coolant (or equivalent ethylene glycol-based coolant)
Transmission Fluid:
Dexron-III (or equivalent)
Known Issues
Common Problems:
Early models experienced some electrical gremlins, particularly with the retractable hardtop mechanism. Some reports of accessory drive belt tensioner issues.
Service Manual Benefit:
Crucial for addressing potential electrical faults and specific powertrain maintenance due to the Reatta's unique engineering.
📚 Vehicle History
Brand Heritage
Brand Focus:
Buick's reputation for comfortable, quiet, and well-appointed vehicles.
Model Evolution
Re Introduction:
The Reatta was a new model introduced for the 1988 model year, designed to be a more upscale and sporty offering.
Design Philosophy:
A personal luxury coupe with a focus on styling and a driver-centric cockpit.
Production
Production Location:
Lansing Craft Centre, Lansing, Michigan
Production Years:
1988-1991
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