2002 Cadillac DeVille service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- Base Hearse 4-Door
- DTS Sedan 4-Door
- Base Sedan 4-Door
- DHS Sedan 4-Door
- Base Limousine 4-Door
Engines covered
- 4.6L 281Cu. In. V8 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
ON CERTAIN CADILLAC DEVILLE AND SEVILLE PASSENGER VEHICLES, FUNERAL COACHES, AND LIMOUSINES EQUIPPED WITH A V8 (4.6L) ENGINE, OLDSMOBILE AURORA PASSENGER VEHICLES EQUIPPED WITH A V8 (4.0L ) ENGINE, AN
FUEL SYSTEM COMPONENTS CAN BE DAMAGED AND FUEL CAN LEAK FROM THE VEHICLE WHEN IT IS REFUELED. FUEL
DEALERS WILL REPLACE THE FUEL TANK PRESSURE SENSOR. OWNER NOTIFICATION BEGAN ON OCTOBER 17, 2003.
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected mo
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the deal
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should
Showing the 8 most recent of 278 technical service bulletins on file with NHTSA.
WHILE APPROACHING A TRAFFIC LIGHT DRIVER APPLIED BRAKE PEDAL AND THE CAR CONTINUED TO ACCELERATE GAINING SPEED. DRIVER ATTEMPTED TO SLOW OR STOP BUT CAR ACCELRATED EVEN MORE. OVER A THREE BLOCK STRET
THE ABS BRAKING SYSTEM FAILED WHILE APPLYING THE BRAKES WHILE DRIVING ABOUT 30 MPH ON THE HIGHWAY. AS A RESULT THE VEHICLE HAD A COLLISION WITH A PARKED VEHICLE. THERE WERE NO FATALITIES TO REPORT.
TL*- THE CONTACT IS A STATE TROOPER WHO CALLED TO MAKE THE COMPLAINT. THE CONTACT STATED THAT AN OCCUPANT WAS DRIVING A 2002 CADILLAC DEVILLE AT 61 MPH AND VEHICLE WENT OFF THE ROAD AND HIT A CONCRET
WILD TRAVELING FAR RIGHT LANE 45 MILE-AN-HOUR 5 LANE MAJOR ROAD IN MICHIGAN HIT POTHOLE LOST ALL CONTROL OF THE VEHICLE BEARD LEFT INTO ONCOMING TRAFFIC STRUGGLED CAR BACK TO THE RIGHT TOOK OVER 1 MIL
WILD TRAVELING FAR RIGHT LANE 45 MILE-AN-HOUR 5 LANE MAJOR ROAD IN MICHIGAN HIT POTHOLE LOST ALL CONTROL OF THE VEHICLE BEARD LEFT INTO ONCOMING TRAFFIC STRUGGLED CAR BACK TO THE RIGHT TOOK OVER 1 MIL
Showing the 5 most serious of 237 complaints filed with NHTSA.
