🏷️ Basic Information

Make:

Buick

Model:

Regal

Year:

1990

Platform:

GM W-body

👋 Introduction

Target Audience:

DIY enthusiasts, independent repair shops, Regal owners seeking to maintain their vehicle

Advantage Over Print:

Convenience, instant access, cost-effectiveness, searchability, digital portability

Licensing:

Officially Licensed, ensuring accuracy and completeness of OE data

User Friendliness:

Easy-to-navigate interface, push-button access to information

Cost Savings:

Enables users to perform repairs and maintenance themselves, saving on labor costs

📋 Manual Details

Manual Type:

Service and Repair Manual Software

Manual Origin:

Officially Licensed, OE Materials Derived

Developer:

RepairSurge

Primary Coverage:

Repair and Maintenance

Secondary Coverage:

Troubleshooting, Diagnostics, Component Replacement

File Format:

PDF Download

Access Method:

Online, Web Browser Access

Device Compatibility:

PC, Laptop, Smartphone, Tablet

Access Duration:

1 Year (with renewal discounts)

Primary Language:

English

📖 Manual Coverage

Powertrain:

Engine (3.1L V6, 3.8L V6), Transmission (Automatic)

Chassis:

Suspension (Front MacPherson Strut, Rear Independent), Steering (Power Rack and Pinion), Brakes (Front Disc, Rear Drum)

Electrical:

Wiring Diagrams, Lighting, Ignition, Starting, Charging, Instrumentation

Climate Control:

Heating, Ventilation, Air Conditioning (HVAC)

Body:

Body Panels, Doors, Windows, Interior Trim

Maintenance:

Oil Changes, Filter Replacements, Spark Plug Service, Fluid Checks and Top-offs

Repair:

Engine Component Replacement (e.g., water pump, alternator), Transmission Service, Brake Pad and Rotor Replacement, Suspension Component Replacement (e.g., ball joints, struts)

Diagnostics:

Troubleshooting Engine Performance Issues, Identifying Electrical Faults, Diagnosing Suspension Noises

Depth Level:

Comprehensive from basic maintenance to advanced repairs and diagnostics

📊 Manual Specifications

PDF Quality:

High-resolution, printable pages

Searchability:

Searchable text for quick information retrieval

Print Recommendation:

Printable for offline use

Binding Not Applicable:

Digital Format

Paper Type Not Applicable:

Digital Format

⚙️ Engine Specifications

Engine Code 1:

3.1L V6 (VIN M)

Engine Displacement 1:

3100 cc (189 cubic inches)

Engine Type 1:

Naturally Aspirated, Sequential Fuel Injection (SFI)

Horsepower 1:

Approx. 140 hp @ 4400 rpm

Torque 1:

Approx. 180 lb-ft @ 2000 rpm

Engine Code 2:

3.8L V6 (VIN 3)

Engine Displacement 2:

3800 cc (231 cubic inches)

Engine Type 2:

Naturally Aspirated, Sequential Fuel Injection (SFI)

Horsepower 2:

Approx. 165 hp @ 4400 rpm

Torque 2:

Approx. 200 lb-ft @ 2000 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI) / Sequential Fuel Injection (SFI)

Recommended Fuel:

87 Octane Unleaded Gasoline

🔧 Transmission

Transmission Type:

4-Speed Automatic Transaxle

Transmission Model:

GM 4T60

Transmission Control:

Electronic Control Unit (ECU) for shift points and diagnostics

Transmission Fluid Spec:

Dexron III Automatic Transmission Fluid

📐 Dimensions

Length:

Approx. 195.8 inches

Width:

Approx. 71.1 inches

Height:

Approx. 54.5 inches

Wheelbase:

Approx. 107.5 inches

Curb Weight Range:

Approx. 3200-3400 lbs (depending on engine and options)

🛡️ Safety Features

Airbags:

Driver-side airbag (standard)

Seat Belts:

Front and rear seat belts

Child Safety:

Rear door child safety locks

Braking System:

Power-assisted front disc brakes, rear drum brakes

ABS:

Anti-lock Braking System (ABS) optional on some trims

💡 Technology Features

Audio System:

Factory AM/FM stereo with cassette player, optional CD player, optional premium sound systems.

Dashboard:

Analog gauges for speedometer, tachometer, fuel, and temperature; warning lights for critical systems.

Cruise Control:

Standard or optional depending on trim level.

Connectivity Features:

Limited by era; primarily analog systems, no digital connectivity like Bluetooth or USB.

🔧 Maintenance

Oil Change Interval:

Every 3,000-7,500 miles or 6-12 months (refer to manual for specific engine/oil type)

Engine Oil Filter Replacement:

With every oil change

Spark Plug Replacement:

Approx. 60,000 - 100,000 miles (depending on plug type)

Transmission Fluid Change:

Every 30,000 - 60,000 miles (depending on driving conditions)

Engine Oil Spec:

API SG, SAE 5W-30 (or as specified for temperature range)

Coolant Spec:

GM Type II Extended Life Coolant (Orange) or equivalent ethylene glycol-based coolant

Engine Oil Capacity 3.1L:

Approx. 4.5 quarts (with filter)

Engine Oil Capacity 3.8L:

Approx. 4.5 quarts (with filter)

Transmission Fluid Capacity:

Approx. 4.0 quarts (dry fill) / 11.0 quarts (total)

Common Problems 1:

Intake manifold gasket leaks (3.1L V6), premature wear of suspension components (ball joints, control arm bushings), HVAC blower motor resistor failure, power window motor issues.

Common Problems 2:

Dashboard cracking (common for this era of GM vehicles), intermittent electrical issues, transmission solenoid problems.

📚 Vehicle History

Buick Legacy:

Buick has a long history of producing comfortable, well-appointed, and often performance-oriented vehicles.

Regal Positioning:

The Regal has traditionally been positioned as a mid-size personal luxury coupe or sedan, offering a blend of comfort, style, and performance.

1990 Generation:

The 1990 Regal is part of the third generation of the Regal, built on the GM W-body platform, which debuted for the 1988 model year. This generation marked a shift towards front-wheel drive and a more aerodynamic design.

Manufacturing Plant:

Oshawa Car Assembly, Ontario, Canada