🏷️ Basic Information

Make:

Buick

Model:

Regal

Year:

1999

Chassis Code:

W-body (L67 Supercharged, L36 3800 V6)

👋 Introduction

Positioning:

The 1999 Buick Regal was positioned as a mid-size sedan, often marketed as a comfortable and refined option with optional performance variants.

Competitors:

Competed against vehicles like the Ford Taurus, Chevrolet Lumina, Chrysler Concorde, and Toyota Camry in the mid-size sedan segment.

Features:

Known for its comfortable ride, quiet interior, and the availability of the potent supercharged 3800 Series II V6 engine, offering a blend of luxury and performance.

Manual Utility:

Offers step-by-step instructions, diagrams, illustrations, and specifications to enable users to maintain, service, diagnose, and repair their vehicle with confidence.

Authenticity:

This is the exact same manual used by dealership technicians, ensuring accuracy and comprehensive coverage.

📋 Manual Details

General Coverage:

All models and all repairs A-Z

Model Variants Covered:

Includes all trims and engine options for the 1999 Buick Regal

Estimated Page Count:

Varies by specific vehicle configuration, but comprehensive factory manuals typically exceed 2000 pages for a full service manual.

Type:

Factory Service and Repair Manual

Language:

English

Format:

PDF Download

Digital Convenience:

One easy-to-use PDF manual, eliminating the need to flip through multiple books. Users can print only the necessary pages.

Operating Systems:

Compatible with Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac operating systems.

Software Requirements:

Adobe PDF Reader and Winzip (free online)

📖 Manual Coverage

Engine And Powertrain:

Engine mechanical, control system, fuel service, emission control, intake/exhaust, cooling, lubrication, ignition, starting, charging, automatic transmission, manual transmission, transfer case, drive axle, differential.

Chassis And Suspension:

Axle, suspension, tire and wheel, brake control, brakes, parking brake, steering column, power steering.

Electrical And Body:

Air conditioning, supplemental restraint system (SRS), seat belts, engine immobilizer, cruise control, wiper/washer, door locks, meter/audio/visual, horn, windshield/glass/mirror, instrument panel, seats, engine hood/door, exterior/interior, electrical systems, multiplex/CAN communication.

Engine Control:

Engine mechanical, fuel injection system, ignition system, emission control systems, diagnostic trouble codes (DTCs).

Body And Frame:

Body panels, doors, hinges, latches, windows, mirrors, interior trim, and external moldings.

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, inspections.

Diagnostics:

Troubleshooting guides, diagnostic flowcharts, DTC interpretation (where applicable).

Repair And Rebuild:

Component removal, disassembly, reassembly, installation, and overhaul procedures.

Engine Repair:

Engine assembly/disassembly, cylinder head service, piston and connecting rod service, crankshaft service, timing system service.

Transmission Repair:

Automatic transmission disassembly, assembly, repair, and diagnosis.

Brake System Repair:

Front and rear brake service, brake fluid flush and replacement, parking brake adjustment.

Suspension And Steering:

Front and rear suspension component replacement, power steering system diagnosis and repair, wheel alignment procedures.

Electrical Troubleshooting:

Detailed procedures for diagnosing and repairing common electrical faults, including instrument cluster issues, lighting, and power accessories.

Depth:

Factory-level, complete step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications for diagnosis, maintenance, and repair.

Wiring Schematics:

Includes detailed wiring diagrams for all electrical systems, crucial for troubleshooting complex electrical issues.

Diagnostic Charts:

Provides systematic diagnostic charts and flowcharts to identify and resolve problems efficiently.

Specifications Data:

Includes torque specifications, clearances, resistance values, voltage readings, and other critical technical data for all repair procedures.

📊 Manual Specifications

Format Details:

Digital PDF, compatible with Adobe PDF Reader.

Printability:

All pages are printable. Ability to enlarge images for detailed viewing and printing.

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Options:

3.8L V6 (L36) naturally aspirated and 3.8L V6 Supercharged (L67)

L36 Horsepower:

200 hp @ 5200 rpm

L36 Torque:

225 lb-ft @ 3200 rpm

L67 Horsepower:

240 hp @ 5200 rpm

L67 Torque:

280 lb-ft @ 3600 rpm

Fuel Delivery:

Sequential Fuel Injection (SFI)

Fuel Type:

Unleaded gasoline, 87 octane recommended for L36, 91 octane recommended for L67 (Supercharged).

Engine Codes:

L36 (3800 V6), L67 (3800 Series II Supercharged V6)

🔧 Transmission

Standard Transmission:

4-speed automatic (4T65E)

Optional Transmission:

N/A (Only automatic offered for 1999 model year)

Transmission Features:

Electronically controlled, with overdrive and torque converter clutch.

📐 Dimensions

Wheelbase:

109.0 inches (2769 mm)

Length:

197.5 inches (5017 mm)

Width:

70.4 inches (1788 mm)

Height:

55.7 inches (1415 mm)

Curb Weight:

Approximately 3400-3600 lbs (1542-1633 kg) depending on engine and trim.

🛡️ Safety Features

NHTSA Frontal Impact Driver:

4 stars (1999 model year, as per available historical data for similar GM W-body vehicles)

NHTSA Frontal Impact Passenger:

4 stars (1999 model year, as per available historical data for similar GM W-body vehicles)

ABS:

Standard (Anti-lock Braking System)

Airbags:

Driver and front passenger airbags

Srs:

Supplemental Restraint System (Airbags)

Seat Belts:

Three-point front and rear seat belts.

💡 Technology Features

Audio System:

Optional premium sound systems, CD players, and cassette decks were available depending on trim level.

Traction Control:

Available on some models, especially those with the supercharged engine.

Connectivity Features:

Limited by modern standards; primarily focused on basic audio and climate controls. No integrated Bluetooth or advanced navigation was standard.

🔧 Maintenance

Oil Change Interval:

Every 3,000 to 5,000 miles (4,800 to 8,000 km) or 3-6 months, depending on driving conditions and oil type used (refer to manual for exact recommendations).

Coolant Change Interval:

Initial change at 5 years or 100,000 miles (160,000 km), then every 2-5 years or 30,000-100,000 miles (48,000-160,000 km) depending on coolant type.

Spark Plug Replacement:

Approximately every 60,000 to 100,000 miles (96,000 to 160,000 km), depending on spark plug type (e.g., platinum).

Engine Oil Type:

SAE 5W-30 (API certified)

Transmission Fluid Type:

Dexron III (or equivalent)

Coolant Type:

50/50 mixture of GM-approved ethylene glycol coolant and distilled water.

Brake Fluid Type:

DOT 3 (or specified equivalent)

Common Problems:

Intake manifold gasket leaks (particularly on L36 and L67 engines), power steering pump noise, EGR valve issues, window regulator failures, and occasional transmission control module (TCM) problems.

Supercharger Specific:

Supercharger pulley bearings, intercooler performance issues (on supercharged models), and belt drive system maintenance.

📚 Vehicle History

Buick Heritage:

Buick, a division of General Motors, has a long history dating back to 1899, known for producing reliable and comfortable vehicles often aimed at a more mature demographic.

Regal Evolution:

The Regal nameplate has been used by Buick for various models over the decades, with the 1999 model being part of the fifth generation (1997-2004), which utilized the versatile GM W-body platform.

Production Location:

Assembled in Oshawa, Ontario, Canada, and Kansas City, Kansas, USA (for GM's North American operations).