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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
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES
Automatic Temperature Control Systems Diagnosis & Testing -> DeVille -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> Intermittents -> System Performance Test
Vehicle: 2003 Cadillac Deville DHS 4.6 V8 GAS
Accessing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to Data Link Connector (DLC) and follow manufacturer's instructions.
Intermittents
Because many intermittent faults are caused at electrical connections, diagnosis of such problems should begin with a visual and physical inspection of connectors involved with the code. Appropriate connectors should be disconnected, examined and r...
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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 ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES
General Motors Corp./Saturn Passenger Cars -> Fuel Pressure Relief -> Except Aveo, LaCrosse, LeMans (1988-93), Malibu & Malibu Maxx (2004-05), Metro, Nova, Prizm, Spectrum & Storm -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
Vehicle: 2003 Cadillac Deville 4.6 V8 GAS
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strateg...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2003 Cadillac Deville DTS 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 ...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES
Diagnosis & Testing -> Diagnostic Tests
Vehicle: 2003 Cadillac Deville DHS 4.6 V8 GAS
Diagnostic Tests
Refer to...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES
Alternator, Replace
Vehicle: 2003 Cadillac Deville DHS 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...
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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 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...
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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 DTS 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...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Cadillac Deville AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2003 Cadillac Deville 4.6 V8 GAS
Inlet
- Drain cooling system into a suitable container.
- Reposition inlet heater hose clamp from heater core pipe.
- Remove hose from heater core.
- Reposition heater hose clamp from engine.
- Remove inlet heater hose from engine.
- Remove hose from vehicle.
- Reverse procedure to...
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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...
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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+.
Auxiliary Generator Diagram for 2003 Cadillac Deville 4.6 V8 GAS Components on diagram: |
Front Center Of The Passenger Compartment, On The Console Diagram for 2003 Cadillac Deville 4.6 V8 GAS Components on diagram: |
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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 DHS 4.6 V8 GAS Wiring Diagram Components on diagram: |
2003 Cadillac Deville DTS 4.6 V8 GAS Wiring Diagram Components on diagram: |
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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: |
Document: New Website for AFIT, TPM, and VDR Updates Vehicle: 2003 Cadillac Deville 4.6 V8 GAS Auto Systems: |
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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
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