1985 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
- Cabriolet Coupe 2-Door
- Base Sedan 4-Door
- d'Elegance Coupe 2-Door
- d'Elegance Sedan 4-Door
- Base Coupe 2-Door
Engines covered
- 4.1L 250Cu. In. V8 GAS OHV Naturally Aspirated
- 4.3L 260Cu. In. V6 DIESEL OHV 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
OMISSION OF THE CERTIFICATION LABELS AS REQUIRED BY FEDERAL MOTOR VEHICLE SAFETY STANDARD NUMBER 110 "TIRE SELECTION AND RIMS".
DEALER WILL INSTALL REQUIRED CERTIFICATION LABELS.
THE FUEL FILTERS WERE PRODUCED WITH AN INCORRECT THREADED FITTING. THE INCORRECT FITTING IS SIMILIAR ENOUGH IN SIZE THAT THE FUEL FILTER MAY APPEAR TO BE CORRECTLY THREADED ONTO THE FUEL LINE.
REPLACE THE FILTERS WITH THE CORRECT FILTERS.
THE IMPROPER THREADING COULD CAUSE A GASOLINE LEAK WHICH MAY RESULT IN AN UNDERHOOD FIRE WHEN EXPOSE
POSSIBLE BRAKE FAILURE WAS THE CAUSE OF VEHICLE COLLISION RESULTING IN DEATH.
- RACK AND PINION STEERING - STUCK IN CERTAIN POSITIONS AND WHEN COLD - DANGEROUS! - REAR LOAD LEVELING SYS. DOESN'T SEEM TO WORK ON ANY CADILLACS OF THIS ERA. I CAN'T PUT A SINGLE BAG OF GROCERIES I
WHILE ATTEMPTING TO TURN RIGHT AT ANY DEGREE GREATER THAN A LANE CHANGE, THE STEERING GIVES THE CONSUMER HIGH RESISTANCE, ESPECIALLY DURING A COLD START. *SLC
NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK( DOT NUMBER: TIRE SIZE: 205-75R14 )
Showing the 4 most serious of 22 complaints filed with NHTSA.
