🏷️ Basic Information

Make:

Buick

Model:

Regal

Year:

1993

Product Name:

1993 Buick Regal Service and Repair Manual PDF Download

Regal Generation:

Third Generation (1990-1996)

Platform Code:

GM W-body

👋 Introduction

Target Audience:

Owners of the 1993 Buick Regal seeking to perform maintenance, diagnostics, and repairs themselves, as well as professional mechanics who need accurate factory information.

Value Proposition:

Provides vehicle-specific, factory-authorized repair information, replicating the exact resources used by dealership technicians. Offers comprehensive A-Z coverage for all models and repairs, eliminating the need for generic or incomplete repair guides.

Ease Of Use:

Single, easy-to-use PDF manual format eliminates the need to flip through multiple books. Searchable content and ability to print only necessary pages enhance convenience and reduce wear on physical copies.

Accuracy Detail:

Factory-level detail, including step-by-step instructions, diagrams, illustrations, wiring schematics, and precise specifications, ensuring accurate and efficient repairs.

📋 Manual Details

Systems Covered:

Comprehensive coverage including Maintenance, Engine, Control System, Mechanical, Fuel Service Specifications, Emission Control, Intake Exhaust Cooling, Lube, Ignition Starting Charging, Auto Transmission Clutch, Manual Transmission (if applicable), Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension, Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering, Air Conditioning, Suppl. Restraint System, Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Meter Audio/Visual, Horn, Windshield/Glass Mirror, Instrument Panel, Seat, Engine Hood/Door, Exterior & Interior, Electrical, Multiplex/CAN Communication, and more.

Estimated Page Count:

Likely 1000+ pages (typical for a complete factory service manual of this era)

Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Systems:

Engine Mechanical, Lubrication System, Cooling System, Fuel System (including injection), Ignition System, Starting System, Charging System, Emission Control System.

Powertrain Systems:

Automatic Transmission (e.g., 4T60-E), Manual Transmission (if applicable), Clutch, Driveshaft, Differential, Axles.

Chassis Systems:

Suspension (Front and Rear), Steering (Power Steering, Steering Column), Brakes (Hydraulic, Parking Brake), Wheels and Tires.

Electrical Systems:

Wiring Schematics, Lighting, Gauges and Instruments, Power Accessories, Audio System, Horn, Wipers and Washers, Cruise Control, Supplemental Restraint System (Airbag), Engine Immobilizer.

Body Systems:

Exterior and Interior Trim, Doors, Hood, Glass, Mirrors, Seats, HVAC System (Air Conditioning).

Maintenance Procedures:

Routine maintenance checks, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, lubrication, belt inspections and replacement, spark plug replacement, battery maintenance.

Diagnostics Troubleshooting:

Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, component testing procedures, electrical circuit diagnostics, fuel system diagnostics, emissions system diagnostics.

Repair Rebuild Procedures:

Engine mechanical repairs (e.g., cylinder head removal/installation, piston and ring replacement), transmission overhaul, brake system repair (calipers, rotors, lines), suspension component replacement, steering system repair, electrical component repair and replacement, body panel repair, HVAC system repair.

Technical Specifications:

Torque specifications for all fasteners, clearances, fluid capacities, electrical specifications (voltages, resistances), emissions data, engine timing specifications, tire pressures.

Depth:

Factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Includes step-by-step instructions, diagrams, illustrations, and wiring schematics for all repair and maintenance tasks.

📊 Manual Specifications

Digital Format:

PDF

Printability:

High-quality, printable pages. Images can be blown up for enlarged viewing and printing.

Binding:

N/A (Digital PDF format)

Paper Quality:

N/A (Digital PDF format)

Compatibility:

Compatible with Windows Vista (32/64), XP, ME, 98, NT, 2000, and Mac. Requires Adobe PDF Reader and Winzip (free online).

⚙️ Engine Specifications

Engine Options:

1993 Buick Regal was available with several engine options: 3.1L V6 (RPO L82), 3.8L V6 (RPO L36 - naturally aspirated), and 3.8L V6 Supercharged (RPO L67). Specific engine depends on trim level (e.g., Gran Sport often featured the supercharged option).

3.1L V6 Horsepower:

Approximately 140 hp @ 4400 rpm

3.1L V6 Torque:

Approximately 180 lb-ft @ 2800 rpm

3.8L V6 Horsepower:

Approximately 170 hp @ 4800 rpm

3.8L V6 Torque:

Approximately 220 lb-ft @ 2400 rpm

3.8L Supercharged V6 Horsepower:

Approximately 205 hp @ 4400 rpm

3.8L Supercharged V6 Torque:

Approximately 275 lb-ft @ 3200 rpm

Fuel Delivery:

Multi-port Fuel Injection (MPFI)

Ignition Type:

Distributorless Ignition System (DIS) or traditional distributor, depending on specific engine and build date.

🔧 Transmission

Transmission Type:

Primarily automatic transmissions were offered. The 4-speed automatic 4T60-E was common.

Manual Transmission Availability:

Manual transmissions were generally not a common option for the 1993 Buick Regal, especially in the US market. The focus was on automatic transmissions.

Transmission Control:

Electronically controlled automatic transmissions with features like overdrive.

📐 Dimensions

Body Styles:

Sedan (4-door), Coupe (2-door)

Wheelbase:

Approximately 107.5 inches

Length:

Approximately 196.9 inches (Sedan), 194.7 inches (Coupe)

Width:

Approximately 70.1 inches

Height:

Approximately 54.3 inches (Sedan), 53.4 inches (Coupe)

Curb Weight:

Varies by engine and trim, typically ranging from 3,300 to 3,700 lbs.

🛡️ Safety Features

NHTSA Ratings:

Specific NHTSA crash test ratings for 1993 models are difficult to ascertain definitively without direct access to period reports. Generally, vehicles of this era had varying results.

Anti Lock Brakes:

Anti-lock Braking System (ABS) was available as an option on many models.

Airbags:

Driver-side airbag was standard on most 1993 models. Passenger airbags were not widely available in this model year.

Seat Belts:

Front and rear seat belts, with driver and front passenger shoulder belts.

💡 Technology Features

Audio System:

Factory cassette player with AM/FM radio was standard. Optional CD player and premium sound systems were available.

Cruise Control:

Cruise control was widely available, often standard on higher trim levels.

Onboard Diagnostics:

OBD-I diagnostic system was in use during this period, with specific diagnostic connectors and procedures detailed in the manual.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000 to 5,000 miles, or as per owner's manual recommendation based on driving conditions.

Transmission Fluid Change:

Recommended every 30,000 to 50,000 miles for automatic transmissions, depending on usage. Refer to manual for specific ATF type (e.g., Dexron III).

Coolant Change:

Typically every 30,000 to 50,000 miles or 2-3 years for the original coolant. Use of GM-specific coolant is recommended.

Engine Oil:

API Certified SAE 5W-30 or 10W-30, depending on ambient temperature (refer to manual for precise recommendations).

Automatic Transmission Fluid:

Dexron III (or equivalent)

Coolant:

GM Type 1 (orange) or compatible ethylene glycol coolant.

Brake Fluid:

DOT 3

Engine Issues:

Common issues for the 3.1L and 3.8L V6 engines include intake manifold gasket leaks, head gasket failures (less common on 3.8L), oil leaks, and occasional sensor failures.

Transmission Issues:

The 4T60-E transmission can experience issues with torque converter clutch (TCC) solenoid failure, or wear on internal components leading to slipping or harsh shifts.

Electrical Issues:

Typical for vehicles of this era, intermittent electrical gremlins, failing window regulators, HVAC blower motor resistor issues, and dashboard illumination problems can occur.

Suspension Steering Issues:

Worn ball joints, tie rod ends, and strut mounts are common wear items affecting ride and handling.

📚 Vehicle History

Buick Legacy:

Buick, a division of General Motors, has a long history of producing comfortable, well-equipped, and stylish American sedans and coupes, often targeting a more mature demographic with an emphasis on quiet ride and premium features.

Regal Third Generation:

The third-generation Regal (1990-1996) marked a shift to the GM W-body platform, offering a more aerodynamic and modern design compared to its predecessors. It aimed to blend performance (especially with the Gran Sport model) and luxury.

Manufacturing Locations:

Produced by General Motors in North America.

🏆 Awards & Recognition

Automotive Journal Awards:

While specific awards for the 1993 model year are not prominently documented, the Buick Regal platform has historically been recognized for comfort and value within its segment. For instance, the Regal Gran Sport often received attention for its performance-oriented V6 engine options.