Vehicle Market Segment:
        
        
            Mid-size/Full-size Personal Luxury Coupe/Sedan
        
     
    
    
        
            Key Competitors:
        
        
            Ford Thunderbird, Chevrolet Lumina, Dodge Intrepid (for sedan variants), Chrysler LeBaron Coupe
        
     
    
    
        
            Manual Value Proposition:
        
        
            Provides dealership-level repair accuracy and detail for DIY enthusiasts and professional technicians, saving time and money compared to generic guides.
        
     
    
        
            Manual Benefits:
        
        
            Complete step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications; printable pages for workshop use; eliminates the need for multiple physical manuals.
        
     
 
    
    
    
        
            Models Covered:
        
        
            All 1994 Buick Regal models (e.g., Custom, Gran Sport, Limited)
        
     
    
        
            Repairs Covered:
        
        
            A-Z (Comprehensive maintenance, diagnosis, and repair)
        
     
    
    
        
            Estimated Page Count:
        
        
            Varies, but typically 1000+ pages for a complete factory service manual
        
     
    
    
        
            Manual Type:
        
        
            Factory Service Manual / Repair Manual
        
     
    
    
    
    
 
    
    
    
        
            Powertrain Systems:
        
        
            Engine, Fuel System, Emission Control, Intake/Exhaust, Cooling, Lube, Ignition, Starting/Charging, Automatic Transmission, Manual Transmission, Transfer Case (if applicable), Drive Axles/Shafts, Differential
        
     
    
        
            Chassis Systems:
        
        
            Suspension, Steering Column, Power Steering, Brakes (Control, Parking), Wheels, Tires
        
     
    
        
            Electrical Systems:
        
        
            General Electrical, Wiring Schematics, Multiplex/CAN Communication, Instrument Panel, Lighting, Horn, Wiper/Washer, Power Windows/Locks, Audio/Visual, Cruise Control, Supplemental Restraint System (SRS), Engine Immobilizer
        
     
    
        
            Body Systems:
        
        
            Body Structure, Exterior Trim, Interior Trim, Seats, Doors, Engine Hood, Glass/Mirrors
        
     
    
        
            HVAC Systems:
        
        
            Air Conditioning, Heating
        
     
    
    
        
            Maintenance Procedures:
        
        
            Scheduled maintenance, fluid changes, filter replacements, lubrication, tune-ups
        
     
    
        
            Diagnostic Procedures:
        
        
            Troubleshooting guides, symptom-to-cause analysis, diagnostic trouble codes (DTCs)
        
     
    
        
            Repair Procedures:
        
        
            Step-by-step repair instructions with detailed diagrams and illustrations for all major components and systems
        
     
    
        
            Component Replacement:
        
        
            Engine overhaul, transmission rebuild/replacement, brake caliper/rotor replacement, suspension component replacement, electrical module repair/replacement
        
     
    
        
            Wiring Schematics:
        
        
            Complete electrical wiring diagrams for all vehicle systems
        
     
    
    
        
            Technical Depth:
        
        
            Factory level, including detailed specifications, tolerances, torque values, and diagnostic procedures for technicians
        
     
 
    
    
    
    
    
        
            Printability:
        
        
            Fully printable, allowing users to print specific pages or sections
        
     
    
        
            Image Resolution:
        
        
            High resolution, allowing for image blow-up and enlarged printing of diagrams
        
     
    
    
        
            Binding Type:
        
        
            Digital (N/A for PDF)
        
     
    
    
        
            Paper Type:
        
        
            Digital (N/A for PDF)
        
     
    
    
        
            Operating Systems:
        
        
            Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac compatible
        
     
    
    
        
            Software Requirements:
        
        
            Adobe PDF Reader, Winzip (free online)
        
     
    
    
        
            Searchability:
        
        
            Likely text-searchable (depending on PDF creation), allowing quick navigation
        
     
 
    
    
    
        
            Engine Options:
        
        
            3.1L (189 cu in) L8 V6 (VIN H); 3.8L (231 cu in) L44 V6 (VIN 1); 3.8L (231 cu in) L67 Supercharged V6 (VIN K) - Gran Sport models
        
     
    
    
        
            3.1L V6 Horsepower:
        
        
            Approx. 140 hp
        
     
    
        
            3.8L V6 Horsepower:
        
        
            Approx. 170 hp
        
     
    
        
            3.8L Supercharged V6 Horsepower:
        
        
            Approx. 205 hp
        
     
    
    
        
            Fuel Injection:
        
        
            Sequential Fuel Injection (SFI)
        
     
    
    
        
            Coolant Type:
        
        
            Dex-Cool (Orange) or equivalent silicate-free, ethylene glycol-based coolant is recommended for the 3.1L and 3.8L engines for optimal corrosion protection.
        
     
 
    
    
    
        
            NHTSA Side Impact Rating:
        
        
            Not specifically rated for 1994 model year, but the W-body platform generally performed adequately for its era.
        
     
    
    
        
            ABS:
        
        
            Optional Anti-lock Braking System (ABS)
        
     
    
    
        
            Airbags:
        
        
            Driver-side airbag standard; Passenger airbag optional on some trims.
        
     
    
        
            Seat Belts:
        
        
            Front and rear seat belts with pretensioners for front occupants.
        
     
 
    
    
    
        
            Audio System:
        
        
            Factory AM/FM stereo with cassette player; optional CD player and premium sound systems available on higher trims.
        
     
    
        
            Climate Control:
        
        
            Manual climate control standard; optional automatic climate control on some models.
        
     
    
    
        
            Cruise Control:
        
        
            Standard or optional depending on trim level.
        
     
    
    
        
            Multiplex Communication:
        
        
            Early form of multiplexed wiring systems were implemented on GM vehicles of this era, with the manual detailing these circuits.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Typically 3,000-7,500 miles (4,800-12,000 km) or 6-12 months, depending on driving conditions and oil type. Consult manual for specific recommendations.
        
     
    
        
            Transmission Fluid Change:
        
        
            Recommended every 30,000-50,000 miles (48,000-80,000 km) or as per severe service recommendations.
        
     
    
        
            Coolant Flush Interval:
        
        
            Recommended every 30,000 miles (48,000 km) or 2-3 years, especially with the original coolant formulation.
        
     
    
    
        
            Engine Oil Specification:
        
        
            API SG or SH service category, viscosity grade SAE 5W-30 or 10W-30 (depending on ambient temperature). Consult manual for precise recommendations.
        
     
    
        
            Brake Fluid Specification:
        
        
            DOT 3 brake fluid
        
     
    
    
        
            Common Issues V6 Engines:
        
        
            Intake manifold gasket leaks, distributor drive gear wear (on some 3.1L engines), oil leaks from valve cover gaskets. Supercharger belt wear on Gran Sport models.
        
     
    
        
            Common Issues Transmission:
        
        
            Erratic shifting or failure of the 4T60-E transmission, particularly at higher mileage. Torque converter clutch shudder.
        
     
    
        
            Common Issues Electrical:
        
        
            Window regulator failures, power lock actuator issues, intermittent electrical connections, gauge cluster problems.
        
     
    
        
            Common Issues Suspension Steering:
        
        
            Worn strut mounts, ball joints, tie rod ends, and power steering pump leaks.
        
     
 
    
    
    
        
            Buick Brand Identity:
        
        
            Positioned as a premium/luxury brand within General Motors, known for comfortable ride, quiet interiors, and a focus on a mature demographic.
        
     
    
    
        
            Regal Model Line:
        
        
            The Regal has a long history, evolving from a mid-size coupe/sedan into a more personal luxury vehicle. The 1994 model is part of the third generation, heavily influenced by the GM W-body platform shared with other GM brands.
        
     
    
    
        
            Manufacturing Location:
        
        
            Oshawa Car Assembly, Ontario, Canada