🏷️ Basic Information

Make:

Cadillac

Model:

DeVille

Year:

1999

Chassis Code:

K-body

Generation Designation:

Eighth Generation (1994-1999)

👋 Introduction

Target Audience:

Cadillac DeVille owners seeking to perform maintenance, repairs, and diagnostics themselves, as well as professional repair shops.

Manual Value Proposition:

Provides vehicle-specific, dealership-level technical information, offering significant cost savings compared to professional mechanic fees. Uniquely comprehensive and digitally convenient.

Key Features:

Vehicle-specific, factory-authorized content, step-by-step instructions, detailed diagrams, wiring schematics, comprehensive system coverage, digital format with printability.

📋 Manual Details

Coverage Scope:

All models and all repairs A-Z

Page Count Estimate:

Est. 1500-2500 pages (typical for factory service manuals of this era, PDF consolidation may vary)

Manual Type:

Factory Service and Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine:

Complete engine service, diagnosis, rebuild procedures, specifications

Control System:

Engine control module (ECM) diagnostics, sensor testing, actuator control

Mechanical:

Comprehensive mechanical component repair and diagnosis

Fuel Service:

Fuel system diagnosis, fuel pump, injectors, pressure regulator, specifications

Emission Control:

Emission control system diagnosis and repair, evaporative emissions, catalytic converter

Intake Exhaust Cooling:

Intake manifold, exhaust system, cooling system diagnosis and service

Lube:

Lubrication system service, oil pump, oil filter specifications

Ignition Starting Charging:

Ignition system, starter motor, alternator, battery, troubleshooting

Auto Transmission:

4-speed automatic transmission (4T80-E) diagnosis, service, overhaul, fluid specifications

Manual Transmission:

Not applicable for this model (DeVille was exclusively automatic)

Suspension:

Front and rear suspension diagnosis, repair, alignment specifications

Brakes:

Hydraulic brake system, ABS diagnosis, brake pad/rotor replacement, specifications

Steering:

Power steering system diagnosis, steering column, universal joints

Air Conditioning:

HVAC system diagnosis, refrigerant service, component replacement

Supplemental Restraint System:

Airbag system diagnosis, SRS component replacement, safety precautions

Electrical:

Comprehensive electrical system diagnosis, component testing, troubleshooting

Multiplex Can Communication:

Multiplex/CAN communication system diagnostics, network troubleshooting

Interior Trim:

Interior trim removal and installation, seat systems

Exterior Body:

Exterior panels, doors, hood, glass, mirror service

Maintenance:

Scheduled maintenance, fluid changes, filter replacements

Troubleshooting:

Diagnostic flowcharts, symptom-based troubleshooting guides

Repair:

Step-by-step repair procedures for all major and minor components

Diagnosis:

In-depth diagnostic strategies for electrical, mechanical, and powertrain issues

Depth Level:

Factory-level diagnostic and repair procedures, suitable for professional technicians and advanced DIYers

📊 Manual Specifications

File Format:

PDF

Printability:

All pages printable, with option to enlarge images

Binding Type:

Digital (PDF), no physical binding

Paper Type:

Not applicable (digital format)

Software Compatibility:

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

Software Requirements:

Adobe PDF Reader, Winzip (free online)

⚙️ Engine Specifications

Engine Type:

4.6L Northstar V8

Engine Displacement:

4565 cc (278.6 cubic inches)

Engine Code:

L37 (Standard), LD8 (less powerful variant, less common in DeVille but possible)

Horsepower:

Approx. 275-290 hp (depending on specific L37 calibration)

Torque:

Approx. 290-300 lb-ft (depending on specific L37 calibration)

Fuel Delivery:

Sequential Port Fuel Injection (SFI)

Fuel Type:

Unleaded Premium Unleaded Gasoline (91 octane or higher recommended)

Coolant Type:

GM Dex-Cool (Orange, Extended Life Coolant)

Oil Type:

SAE 5W-30 Synthetic

Oil Capacity:

Approx. 4.5 quarts (4.3 liters) with filter change

🔧 Transmission

Transmission Type:

4-speed Automatic (4T80-E)

Drive Type:

Front-Wheel Drive (FWD)

Transmission Fluid Type:

Dexron-III (or equivalent)

Transmission Fluid Capacity:

Approx. 8.5 quarts (8.0 liters) for initial fill, higher for complete overhaul

📐 Dimensions

Wheelbase:

113.8 inches (2890 mm)

Length:

207.2 inches (5263 mm)

Width:

73.7 inches (1872 mm)

Height:

55.9 inches (1420 mm)

Curb Weight:

Approx. 3,700 - 3,800 lbs (1678 - 1724 kg)

Gross Vehicle Weight Rating:

Approx. 4,700 lbs (2132 kg)

🛡️ Safety Features

NHTSA Front Impact Rating:

4 Stars (Driver), 4 Stars (Passenger)

NHTSA Side Impact Rating:

Not available/tested for all configurations

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Traction Control System (TCS)

Airbags:

Driver and front passenger airbags, optional side airbags

Seat Belts:

Front and rear seat belts with pretensioners

💡 Technology Features

Infotainment Features:

Integrated AM/FM stereo with cassette and CD player, optional Bose premium audio system, trip computer, voice recognition system (on some models).

Driver Assistance Features:

Cruise Control, optional Parking Assist (Ultrasonic Rear Parking Aid).

Connectivity Features:

Limited connectivity by modern standards; primarily focused on in-car entertainment and diagnostics.

OBD Ii:

On-Board Diagnostics II (OBD-II) compliant for emissions and engine diagnostics. Manual covers diagnostic trouble codes (DTCs) and troubleshooting procedures.

🔧 Maintenance

Oil Change Interval:

Every 7,500 miles (12,000 km) or 6 months, whichever comes first (with synthetic oil).

Transmission Fluid Change Interval:

Recommended every 50,000-60,000 miles (80,000-96,000 km) for normal service, or more frequently for severe use.

Coolant Change Interval:

Initial change at 5 years/100,000 miles, then every 5 years/50,000 miles with Dex-Cool.

Brake Fluid Type:

DOT 3

Power Steering Fluid Type:

GM Power Steering Fluid or Dexron-III

Northstar Head Gaskets:

While earlier Northstars had known head gasket issues (thread stripping), later revisions and proper maintenance (using correct coolant) mitigate this. Manual covers diagnosis and repair.

ABS Sensors:

ABS wheel speed sensors can fail over time, leading to ABS warning lights. Manual details testing and replacement.

Cooling System Leaks:

Water pump seals and intake manifold gaskets can be prone to leaks. Manual provides specific procedures for these repairs.

📚 Vehicle History

Brand Heritage:

Cadillac, a division of General Motors, has a long history of producing luxury vehicles known for comfort, style, and advanced technology.

Model Evolution 1999:

The 1999 DeVille represents the final year of the eighth generation (K-body), a period characterized by the introduction of the Northstar V8 engine and a focus on refined comfort and advanced features.

Production Period:

1994-1999 (Eighth Generation)

🏆 Awards & Recognition

Recognitions:

The Northstar engine was often lauded for its smooth operation and power, contributing to the DeVille's reputation as a comfortable luxury cruiser. While specific 'awards' for the 1999 model year might not be as prominent as modern vehicles, it continued Cadillac's legacy of luxury sedan production.