1993 Cadillac DeVille Service and Repair Manual

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Factory-Grade Data

1993 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 Sedan 4-Door
  • Touring Sedan 4-Door
  • Base Coupe 2-Door

Engines covered

  • 4.9L 300Cu. In. V8 GAS 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

1993 Cadillac DeVille Recalls & Complaints

NHTSA #94V19900013/10/1994Component: POWER TRAIN:AXLE ASSEMBLY

THE UPPER TRANSAXLE OIL COOLER HOSE CAN PULL OUT OF THE CRIMPED COUPLING AT THE TRANSAXLE END OF THE LINE ASSEMBLY.

Consequence

IN THE EVENT OF SEPARATION OF THE COUPLING, AN OIL LEAK CAN OCCUR WHICH, WHEN EXPOSED TO AN IGNITION

Remedy

DEALERS WILL INSTALL A NEW UPPER TRANSAXLE OIL COOLER LINE TO THE TRANSAXLE.

TSB #10246631

Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules

TSB #10010847

SERVICE ENGINE SOON LIGHT ON AND CHUGGLE OR SURGE. DIAGNOSTIC TROUBLE CODE P0741 OR DIAGNOSTIC TROUBLE CODE 39 (TCC STUCK OFF). *TT

TSB #10006332

4.0L L47, 4.6L LD8 L37 ENGINE WATER PUMP COVER P/N 12571913- THERMOSTAT LOOSE. ALSO INCLUDING MODEL 2003 CADILLAC ELDORADO. *MR

TSB #10004769

THIS BULLETIN IS BEING ISSUED TO INFORM DEALERS OF ENHANCEMENTS TO CRANKCASE, OIL DISTRIBUTION PLATE AND OIL PAN SEALING BY USING RTV SEALANT. *TT

TSB #606086

SOME CUSTOMERS MAY COMPLAIN ABOUT A ENGINE COLD / KNOCK / TICK NOISE. *TT

TSB #51497

COLD START RATTLE NOISE (DIAGNOSIS/SERVICE PROCEDURE). *TW

TSB #50571

COLD START RATTLE NOISE. *TW

TSB #39308

COLD START RATTLE NOISE. *TW

20110705Component: AIR BAGS:FRONTALCrash reported2 injured

PURCHASED 2003 CADILLAC DHS FROM COAST CADILLAC, THE NEXT MONTH WE HAD TO GET A NEW ENGINE FROM RANCHO MOTORS. LESS THAN A YEAR AFTER THAT WE HAD TO GET A NEW COMPUTER. MY HUSBAND HAD A CAR ACCIDE

19960806Component: TIRESCrash reported2 injured

MICHELIN TIRE BLEW OUT, CAUSING ACCIDENT/INJURIES. *DH

19960729Component: SEATSCrash reported1 injured

DURING REAR IMPACT, THE DRIVER'S SIDE SEAT BRACKETS BROKE, CAUSING THE SEAT TO FALL BACKWARDS INTO THE REAR SEAT.*AK

19960729Component: SEATS:FRONT ASSEMBLY:RECLINERCrash reported1 injured

DURING REAR IMPACT, THE DRIVER'S SIDE SEAT BRACKETS BROKE, CAUSING THE SEAT TO FALL BACKWARDS INTO THE REAR SEAT.*AK

19950112Component: AIR BAGS:FRONTALCrash reported1 injured

UPON TWO DIFFERENT ACCIDENTS, DRIVERS AIRBAG DID NOT DEPLOY, DEALER SAID NOTHING WAS WRONG DURING 1ST ACCIDENT, HAVE NOT CHECK FOR SECOND ACCIDENT. TT

Showing the 5 most serious of 123 complaints filed with NHTSA.

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