1994 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
- Concours Sedan 4-Door
Engines covered
- 4.9L 300Cu. In. V8 GAS OHV Naturally Aspirated
- 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
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
SERVICE ENGINE SOON LIGHT ON AND CHUGGLE OR SURGE. DIAGNOSTIC TROUBLE CODE P0741 OR DIAGNOSTIC TROUBLE CODE 39 (TCC STUCK OFF). *TT
4.0L L47, 4.6L LD8 L37 ENGINE WATER PUMP COVER P/N 12571913- THERMOSTAT LOOSE. ALSO INCLUDING MODEL 2003 CADILLAC ELDORADO. *MR
REVISED HVAC BLOWER MOTOR INSTALLATION PROCEDURE. *TT
THIS BULLETIN IS BEING ISSUED TO INFORM DEALERS OF ENHANCEMENTS TO CRANKCASE, OIL DISTRIBUTION PLATE AND OIL PAN SEALING BY USING RTV SEALANT. *TT
ENGINE OIL LEAKS ALONG THE UPPER TO LOWER CRANKCASE JOINT. *TT
SOME CUSTOMERS MAY COMPLAIN ABOUT A ENGINE COLD / KNOCK / TICK NOISE. *TT
CONCERNS OF DOOR HANDLES ON WHITE PAINTED VEHICLES TRUNING YELLOW. *YC
Showing the 8 most recent of 31 technical service bulletins on file with NHTSA.
WHILE DRIVING AT APPROXIMATELY 15 MPH IN A RAIN STORM CONSUMER RAN OVER A LARGE HOLE IN THE STREET WHICH WAS ABOUT TO BE FILLED WITH CONCRETE, AND AIR BAG DEPLOYED INADVERTENTLY. DRIVER AND PASSENG
VEHICLE'S SHOULDER HARNESS ALLOWS THE PASSENGER TO MAKE THE SHOULDER HARNESS LOOSE AGAINST THE BODY INSTEAD OF FIRM, RESULTING IN THE PERSON BEING THROWN ABOUT ON SERIOUS IMPACT IN THE VEHICLE. DEAL
WHILE TRAVELING 40MPH AND AS A RESULT OF AN ACCIDENT AIR BAGS DID NOT DEPLOY, CAUSING INJURY. PLEASE PROVIDE FURTHER INFORMATION. *AK
DRIVERS AIR BAG DID NOT DEPLOY UPON A FRONTAL COLLISION. TT
PASSENGERS AIR BAG DID NOT DEPLOY UPON A FRONTAL COLLISION. TT
Showing the 5 most serious of 185 complaints filed with NHTSA.
