1985 Cadillac DeVille Service and Repair Manual

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Factory-Grade Data

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

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Vehicle Safety Data

1985 Cadillac DeVille Recalls & Complaints

NHTSA #84V06300021/05/1984Component: EQUIPMENT:OTHER:LABELS

OMISSION OF THE CERTIFICATION LABELS AS REQUIRED BY FEDERAL MOTOR VEHICLE SAFETY STANDARD NUMBER 110 "TIRE SELECTION AND RIMS".

Remedy

DEALER WILL INSTALL REQUIRED CERTIFICATION LABELS.

NHTSA #93E01900004/06/1993Component: FUEL SYSTEM, GASOLINE:STORAGE

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.

Consequence

REPLACE THE FILTERS WITH THE CORRECT FILTERS.

Remedy

THE IMPROPER THREADING COULD CAUSE A GASOLINE LEAK WHICH MAY RESULT IN AN UNDERHOOD FIRE WHEN EXPOSE

No service bulletins No technical service bulletins on file with NHTSA for the 1985 Cadillac DeVille.
19990324Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS1 injured1 fatalities

POSSIBLE BRAKE FAILURE WAS THE CAUSE OF VEHICLE COLLISION RESULTING IN DEATH.

20020507Component: STEERING:RACK AND PINION

- 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

20001201Component: STEERING

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

20001201Component: STEERING

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

20000912Component: UNKNOWN OR OTHER

NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK( DOT NUMBER: TIRE SIZE: 205-75R14 )

Showing the 5 most serious of 22 complaints filed with NHTSA.

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