🏷️ Basic Information

Make:

Cadillac

Model:

Brougham

Year:

1990

👋 Introduction

Vehicle Segment:

Full-size luxury sedan

Target Audience:

Luxury car buyers, owners seeking to maintain or repair their vehicles themselves

Competitors:

Lincoln Town Car, Chrysler Imperial, Oldsmobile Ninety-Eight

Manual Value:

Provides vehicle-specific, factory-level repair data, enabling accurate diagnosis and repair

Digital Convenience:

Easy-to-use PDF format with searchable text and selective printing

Cost Savings:

Empowers owners to perform repairs, reducing reliance on costly dealership services

📋 Manual Details

Engine Types Covered:

All 1990 Cadillac Brougham engine variants

Repair Scope:

A-Z comprehensive repair and maintenance

Model Variants Covered:

All trim levels and configurations

Estimated Page Count:

Extensive (typical for factory service manuals of this era, often exceeding 1000 pages in original print)

Type:

Factory Service and Repair Manual

Language:

English

Digital Format:

PDF

📖 Manual Coverage

Powertrain:

Engine, Fuel System, Cooling System, Lube System, Ignition System, Starting and Charging System, Automatic Transmission

Chassis:

Suspension, Steering, Brakes (including Parking Brake), Wheels and Tires

Electrical:

Wiring Schematics, Lighting, Instruments, Gauges, Power Accessories, Cruise Control, Horn, Wiper/Washer System, Air Conditioning, Suppl. Restraint System (SRS), Engine Immobilizer

Body And Interior:

Body Panels, Doors, Locks, Glass, Mirrors, Interior Trim, Seats, Instrument Panel, Engine Hood

Emissions And Controls:

Emission Control Systems, Engine Control System

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, lubrication

Diagnostics:

Troubleshooting charts, diagnostic procedures for electrical and mechanical systems, fault code interpretation

Repair:

Step-by-step repair instructions for all major components and systems

Overhaul:

Complete overhaul procedures for engine, transmission, and other major mechanical assemblies

Adjustment:

Adjustment procedures for brakes, clutch, ignition timing, and other systems

Wiring Schematics:

Complete and detailed wiring diagrams for all electrical systems, essential for diagnostics and repairs.

Depth:

Factory-level technical detail, suitable for professional technicians and advanced DIYers

Diagnostic Tools:

Information on diagnostic tools and procedures specific to the 1990 Cadillac Brougham

Special Tools:

Identification and usage of specialized tools required for specific repairs

Illustrations Diagrams:

Includes numerous illustrations, diagrams, and exploded views to guide repair procedures.

📊 Manual Specifications

Compatibility:

Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac compatible

Requirements:

Adobe PDF Reader, Winzip (free online)

Download Speed:

Fast download (as advertised)

Printability:

All pages printable, with ability to enlarge images

Binding:

N/A (Digital PDF format)

Paper Quality:

N/A (Digital PDF format)

Text Search:

Likely searchable text content within the PDF

⚙️ Engine Specifications

Engine Type:

Fuel-injected V8

Displacement:

5.0L (305 cu in) or 5.7L (350 cu in) Tuned Port Injection (TPI) V8

Fuel System:

Electronic Fuel Injection (EFI), Tuned Port Injection (TPI) for 5.7L

Horsepower:

Approx. 170-230 hp depending on engine variant (specific figures available in manual)

Torque:

Approx. 270-330 lb-ft depending on engine variant (specific figures available in manual)

Ignition System:

Electronic Ignition System

Engine Control Module:

ECM (Engine Control Module) or BCM (Body Control Module) for certain functions

Emission Control Systems:

Detailed information on catalytic converter, EGR (Exhaust Gas Recirculation), and other emissions control components and their servicing.

🔧 Transmission

Transmission Type:

4-speed Automatic Transmission (e.g., THM700-R4 / 4L60)

Transmission Options:

No manual transmission option typically available for this model year.

Transmission Control:

Electronically controlled with lock-up torque converter

📐 Dimensions

Wheelbase:

Approximately 115.3 inches (2929 mm)

Overall Length:

Approximately 212.6 inches (5400 mm)

Overall Width:

Approximately 76.5 inches (1943 mm)

Overall Height:

Approximately 54.5 inches (1384 mm)

Curb Weight:

Approximately 4,000 - 4,300 lbs (1814 - 1950 kg) depending on equipment

🛡️ Safety Features

Crash Test Data:

Limited public data for this specific year/model from common agencies like NHTSA; manual provides detailed structural and safety system information.

Airbags:

Driver-side airbag standard (Supplemental Restraint System)

Seat Belts:

All seating positions equipped with 3-point seat belts, front shoulder belts may be automatic or manual adjust

Body Structure:

Reinforced body structure for crash protection

ABS:

Anti-lock Braking System (ABS) likely optional or standard on higher trims

Traction Control:

Traction control system may be available on some models

💡 Technology Features

Audio System:

Premium AM/FM stereo system, often with cassette player and optional compact disc (CD) player. Seek the manual for specific audio unit diagnostics.

Cruise Control:

Standard or optional electronically controlled cruise control system.

Multiplex Communication:

The manual mentions 'Multiplex/CAN Communication,' indicating an early form of multiplex wiring for reduced harness complexity, common in luxury vehicles of the era.

Climate Control:

Automatic Climate Control system likely available, managing heating, ventilation, and air conditioning.

Instrument Panel:

Feature-rich instrument cluster with analog gauges for speed, tachometer (if equipped), fuel level, coolant temperature, oil pressure, and voltmeter. Warning lights for various systems.

🔧 Maintenance

Oil Change:

Typically every 3,000 miles or 3 months, or per specific driving conditions (detailed in manual)

Transmission Service:

Fluid and filter change every 30,000-60,000 miles (refer to manual for exact interval and fluid type)

Coolant Change:

Every 2-3 years or specified mileage (refer to manual for coolant type and capacity)

Engine Oil:

API SG or SG/CD, SAE 5W-30 or 10W-30 (refer to manual for exact viscosity and capacity)

Transmission Fluid:

Dexron-III (or equivalent) automatic transmission fluid (ATF)

Coolant:

Ethylene glycol based coolant, typically a 50/50 mix with distilled water. Specific type (e.g., green) specified in manual.

Brake Fluid:

DOT 3 or DOT 4 brake fluid (refer to manual for specific recommendation)

Power Steering Fluid:

Dexron-II or Dexron-III ATF (refer to manual for confirmation)

Common Wear Items:

Suspension components (ball joints, tie rods, bushings), exhaust system, fuel injectors, and electronic control module (ECM) can be prone to wear or failure over time.

Electrical Gremlins:

Older vehicles of this era can experience minor electrical issues due to aged wiring insulation or component failure; the manual's wiring schematics are invaluable.

📚 Vehicle History

Cadillac Legacy:

Cadillac has a long-standing reputation for luxury, comfort, and advanced features in American automobiles.

Brougham Lineage:

The Brougham nameplate signifies Cadillac's commitment to traditional luxury sedans, evolving from earlier Fleetwood Brougham models. The 1990 model represents a refinement of the rear-wheel-drive platform.

Platform Sharing:

Likely shared platform components with other GM rear-wheel-drive vehicles of the era, but with unique Cadillac styling and luxury appointments.

Production Era:

The Brougham name has been used by Cadillac intermittently, with the specific rear-wheel-drive platform for this generation produced from 1987 to 1992.

🏆 Awards & Recognition

Industry Awards:

Specific industry awards for the 1990 Brougham are not prominently documented in general sources, but Cadillac as a brand historically received numerous accolades for luxury and engineering.

Consumer Ratings:

Consumer satisfaction surveys from the era would be historical data points, with the manual providing the factual technical basis for reliable operation.