Repairing 2003 Cadillac Deville Automobiles? Access Complete DIY repair procedures (Charts, Diagrams, Procedures, Specifications)

Auto Parts Search

Make:

Model:

Year:

2003 Cadillac Deville CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Cadillac REPAIR SHOPS DON'T WANT YOU TO KNOW

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

Select Section

Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Cadillac Deville car and truck repair procedures including Cadillac engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your Cadillac Deville automobile. Try the Automotix DIY solution today!

DIY REPAIR SAMPLES > CONTINUE EXPLORING >

Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Cadillac mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 2003 Cadillac Deville vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

Computer Relearn Procedures -> General Motors Corp. -> 1997-98 -> 1998-2000 -> 1998-99 -> 1999-2001 -> 1999-2002 -> 2.2L & 2.4L Engines -> 2000-02 -> 2000-04 -> 2001-02 -> 2001-04 -> 3.1L, 3.4L, 3800/3.8L, 4.0L & 4.6L Engines -> 3.5L Engine -> 5.7L Engine -> Achieva, Alero, Grand Am & Skylark -> Achieva, Cavalier, Skylark & Sunfire -> Alero & Grand Am -> Alero & Malibu -> Aurora -> Aurora, Bonneville, DeVille, LeSabre & Seville -> Aurora, Bonneville, Grand Prix, LeSabre & Park Avenue -> Auto Learn Passlock Procedure -> Body Control Module (BCM) -> Bonneville -> Bonneville, Eighty Eight, LeSabre, LSS & Park Avenue -> C & K Series w/Diesel Engine -> C & K Trucks w/Diesel Engine -> Camaro & Firebird -> Catera -> Cavalier & Sunfire -> Century -> Century, Grand Prix, Impala, Intrigue, Lumina, Monte Carlo & Regal -> Century, Impala, Intrigue, Monte Carlo & Regal -> Corvette -> Crankshaft Position System Variation Learn -> Cutlass & Malibu -> Dash Integration Module (DIM) -> DeVille -> DeVille, Eldorado & Seville -> EEPROM -> Eldorado -> Engine Control Module (ECM) -> Engine Performance -> Except Park Avenue -> Grand Am -> Grand Prix & Regal -> Impala & Monte Carlo -> Instrument Panel Integration Module (IPM) -> Intrigue -> LeSabre -> Less Tech 2 Or Techline Terminal -> Light Truck & Vans -> Park Avenue -> Passenger Cars -> Passkey Module -> Passlock Learn Procedure -> PCM -> Powertrain Control Module (PCM) -> Powertrain Control Module (PCM) & Vehicle Control Module (VCM) -> Rear Integration Module -> Riviera -> Seville -> T50/T60/T20+ -> TDC Offset Adjustment -> Theft Deterrent System Programming -> VCM -> With Tech 2 -> With Techline Terminal & Scan Tool
Vehicle: 2003 Cadillac Deville DTS 4.6 V8 GAS

Passenger Cars

Body Control Module (BCM)

Alero & Grand Am

This procedure must be performed if the BCM, Passlock sensor or PCM is replaced. If BCM is not properly programmed, it will not control all the features properly.

Ensure battery is fully charged and ignition switch is in the ON position.
Connect a suitably programmed Tech II, or equivalent, scan tool to Data Link Connector (DLC).
Access scan tool "Special Functions" menu and follow scan tool instructions to program BCM.
If BCM fails to accept the pr...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville A/C & HEATER SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

Power Brake Units -> Precautions
Vehicle: 2003 Cadillac Deville DHS 4.6 V8 GAS

After disassembling power brake unit, soak metal components in solvent.
Use only alcohol on components containing rubber. After components have been thoroughly cleaned and rinsed in solvent, they should be washed again in clean alcohol before assembly.
Use compressed air to blow dirt and cleaning fluid from ...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville BRAKE SERVICE PROCEDURES

FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

General Motors Corp./Saturn Passenger Cars -> Fuel Filter Scheduled Maintenance -> 1980-06 Gasoline Engine Models Except Catera, LeMans (1988-93) Metro, Nova (1985-88), Saturn & Sprint -> Normal Service -> Severe Service
Vehicle: 2003 Cadillac Deville DTS 4.6 V8 GAS

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville FUEL FILTER REPLACEMENT PROCEDURES

DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 2003 Cadillac Deville 4.6 V8 GAS

Raise vehicle and suitably support.
Remove wheel and tire.
Loosen or remove stabilizer shaft link assembly bolt as needed.
Remove ball joint cotter pin and nut. Do not attempt to free ball stud by using a pickle fork or wedge type tool, because seal or bushing damage could result. Use the proper tool to separate all ball joints.
With the pry bar between suspension support and lower control arm, separate joint.
Remove hub nut. Insert a drift or screwdriver into caliper and rotor to prevent rotor from turning.
Disconnect axle from hub using a suitable tool. The hub may ...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

Reset Procedures
Vehicle: 2003 Cadillac Deville 4.6 V8 GAS

If system detects proper tire pressure, TIRE OK will be displayed on the DIC (Driver Information Center). If the system detects a tire pressure above 38 psi., the TIRE HIGH message w...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville TIRE PRESSURE MONITORING SYSTEM PROCEDURES

STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

Alternator, Replace
Vehicle: 2003 Cadillac Deville DTS 4.6 V8 GAS

Disconnect battery ground cable.
Remove drive belt.
Remove radiator.
Disconnect wiring harness connector from alternator.
Reposition protective boot from alternator output BAT terminal for access.
Remove alternator output BAT terminal nut and disconnect...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville STARTER & ALTERNATOR REPLACEMENT PROCEDURES

CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

Cabin Air Filter Service -> General Motors Corp./Saturn -> 2000-05 DeVille
Vehicle: 2003 Cadillac Deville DTS 4.6 V8 GAS

Under normal operating conditions the cabin air filter should be replaced every 12 months or 15,000 miles. In dusty areas change the cabin air filter more often.

Open the hood.
Remove the cabin air filter access cover from the righthand side of the cowl panel, On 2000 models, use a suitable screwdriver to pry up the access cover. On 2001-05 models, press the tabs to release...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES

MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

General Motors Corp./Saturn Cars -> Check Engine Or Service Now Soon Engine Indicator Lamps (Gasoline Engines w/Electronic Engine Controls Or EFI) -> Except LeMans, Metro, Prizm, Storm & Vibe
Vehicle: 2003 Cadillac Deville 4.6 V8 GAS

The Check Engine lamp should light when the ignition is turned On. When the engine is started, the lamp should go off. If the lamp remains on for 10 seconds or constantly after the engine is started, the self diagnosis system has detected a fault condition and has stored a code in the system Electronic Control Module (ECM) or Powertrain Control Module (PCM). After diagnosis and repair, the ECM memory can be cleared of codes as follows:

On models except Cadillac with DEFI, remove the ECM/PCM fuse or disconnect the battery ground cable for approximately 30...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville MAINTENANCE LAMP RESET PROCEDURES

RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Cadillac Deville 4.6 V8 GAS

Lower

Disconnect negative battery cable.
Raise and support vehicle.
Remove lower front air deflector.
Drain cooling system into a suitable container.
Lower vehicle.
Reposition hose clamp from engine.
Remove radiator outlet hose from engine.
Reposition hose clamp from radiator.
Remove radiator outlet hose from radiator and vehicle.
Reverse procedure...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville RADIATOR & HOSE REPLACEMENT PROCEDURES

SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2003 Cadillac Deville DTS 4.6 V8 GAS

Mark running direction, if belt is to be reused.
Rotate drive belt tensioner mechanism upward and away from drive belt us...

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville SERPENTINE BELT SERVICE PROCEDURES

COMPONENT LOCATION DIAGRAMS FOR 2003 Cadillac Deville AUTOMOBILES

Component location diagrams for most 2003 Cadillac Deville cars and light trucks sold in the U.S. from 1990+.

CMP, VSS, And HO2S Bank 1 Sensor 1 Diagram for 2003 Cadillac Deville 4.6 V8 GAS

Components on diagram:

Vehicle Speed Sensor (VSS)

Camshaft Position (CMP) Sensor

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1

Front Of Rear Compartment, Under Rear Shelf Diagram for 2003 Cadillac Deville 4.6 V8 GAS

Components on diagram:

OnStar GPS Antenna

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville PARTS/COMPONENTS LOCATION DIAGRAMS!

WIRING DIAGRAMS FOR 2003 Cadillac Deville AUTOMOBILES

OEM drawn wiring diagrams for most 2003 Cadillac Deville cars and light trucks sold in the U.S.

2003 Cadillac Deville DTS 4.6 V8 GAS Wiring Diagram

Components on diagram:

Radio

Audio Amplifier

2003 Cadillac Deville 4.6 V8 GAS Wiring Diagram

Components on diagram:

Ignition Switch

Security Indicator

Powertrain Control Module

Theft Deterrent Control Module

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville WIRING DIAGRAMS!

TECHNICAL SERVICE BULLETINS FOR 2003 Cadillac Deville AUTOMOBILES

OEM TSB listings for most 2003 Cadillac Deville cars and light trucks sold in the U.S. from 1985+.

Document: Revised General Motors New Vehicle Tire Warranty Program
Vehicle: 2003 Cadillac Deville 4.6 V8 GAS

Auto Systems:

Labor Times, Manuals, Warranty, Aids

Wheels, Tires, Wheel Bearings, Seals, Hubs

Document: New Website for AFIT, TPM, and VDR Updates
Vehicle: 2003 Cadillac Deville 4.6 V8 GAS

Auto Systems:

Labor Times, Manuals, Warranty, Aids

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville TECHNICAL SERVICE BULLETINS!

COMPONENT/PARTS SPECIFICATIONS FOR 2003 Cadillac Deville AUTOMOBILES

BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Cadillac Deville cars and light trucks sold in the U.S. and Canada from 1970+.

Brake caliper mounting bolt torque
Brake drum runout, machining, & discard specs
Minimum brake lining thickness.
Brake rotor runout, parallelism, machining, discard, & finish specs

A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2003 Cadillac Deville cars and light trucks sold in the U.S. and Canada from 1980+.

Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap

COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.

PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules

QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2003 Cadillac Deville cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.

Automatic transmission/transaxles capacities, lubricant recommendations
Differential/final drive capacities, lube recommendations, grades, & viscosities
Final drive fill & drain plug torques
Number of lubrication fittings & plugs
Power steering, brake, & clutch fluid recommendations
Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
Number of lubrication fittings & plugs
Power steering, brake, & clutch fluid recommendations
Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
Severe service maintenance & interval recommendations
Tire sizes, wheel nut/bolt torque, pressures & rim sizes
Transfer case capacities, lube recommendations, grades, & viscosities

TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2003 Cadillac Deville cars and light trucks sold in the U.S. and Canada from 1980+

Airflow sensor electrical specifications
Tensioning specifications for systems with automatic tensioners
Barometric pressure sensor specs
Battery group number and cranking performance
Crankshaft & camshaft position sensor resistance
Engine compression pressures
Coolant temperature sensor specs
Computer advance.
Diesel fuel temperature sensor resistance.
Distributor advance specifications
Ignition pickup coil resistance
Exhaust gas recirculation temperature sensor resistance
Engine fastener torque values
Firing order diagrams
Fuel system pressures
Generator (alternator) specs
Intake air temperature sensor specs
Ignition coil specifications
Fuel injector resistance
Engine idle speeds
Knock sensor resistance
Manifold absolute pressure sensor specs
Mixture control solenoid resistance
Voltage regulator specs
Spark plug applications & gaps
Starter motor electrical specs.
Tensioning specifications for systems without automatic tensioners
Throttle body temperature sensor resistance
Ignition timing in degrees at rpm
Transmission oil temperature sensor resistance
Throttle position sensor specs
Vacuum sensor valve specs

CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac Deville SPECIFICATIONS DATA!

Shop online for auto body parts, engines, wheels, lights...

	1993 Cadillac Deville Bumper, Rear. Source: Auto Body Parts Store	$121.82

	1995 Cadillac Deville Radiator. Source: Auto Body Parts Store	$164.69

	2013 Cadillac CTS Head Light Assembly, Passenger Side, PASSENGER SIDE HEAD LIGHT ASSEMBLY, HALOGEN , , . Source: Wheels / Rims, Mirrors & Lights Store	$192.45

	1985 Cadillac Deville V8, 4.1 L, 250 CID Rebuilt Engine, Integral Head, two barrel carb, five hole smog in head., Warranty: 7-Year/70,000 Mile, . Source: Rebuilt Engines Store	$1,335.00

	1994 Cadillac Deville Used Exhaust Manifold, Passenger Side Rear, 8-300 (4.9L), R. (), Very Good. Source: Used Auto Parts Store	$129.00

	2000 Cadillac Deville Used Alternator, 4.6, AUTO, FWD exc. Hearse conversion, Very Good. Source: Used Auto Parts Store	$87.00
More parts

Auto Repair Quick Search

Help me find

Search DIY repair manuals by VIN...

Get the Complete Technical Service Bulletins!

Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your 2003 Cadillac Deville vehicle.