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2003 Cadillac CTS CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Cadillac REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Cadillac CTS 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 CTS automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Domestic Vehicles
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
Power Brake Units -> Adjustments -> AC-Delco Single Diaphragm Type -> AC-Delco Tandem Diaphragm Type -> Air Method -> Brake Pedal -> Gauge Method -> Pushrod -> Toyota/GM Single Diaphragm Type
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
Brake Pedal
Toyota/GM Single Diaphragm Type
- With engine running and brake pedal in rest position, measure distance between face of pedal and floor mat.
- Distance should be 5.850-6.244 inches.
- If distance is not as specified, adjust pedal height as follows:
- Remove lefthand lower instrument panel trim section and air duct.
- Loosen stop lamp switch sufficiently to access pedal adjustment.
- Loosen locknut and rotate pedal pushrod as required to obtain specified pedal height. Tighten locknut.
- Adjust brake lamp switch position so plunger lightly contacts pedal stopper and brake lamps are off when pe...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Cadillac CTS 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 CTS 3.2 V6 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
- Raise and support vehicle.
- Remove tire and wheel assembly. The wheel drive shaft spindle nut must not be reused. Replace wheel drive shaft spindle nut with a new nut whenever it is removed.
- Insert a drift or punch into brake rotor and against caliper in order to prevent wheel hub and bearing from turning.
- Remove and discard wheel drive shaft spindle nut.
- Remove drift or pu...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
Starter, Replace
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
- Disconnect battery ground cable.
- Raise and support vehicle using suitable lift.
- Disconnect HO2S electrical connector at sensor.
- Remove exhaust pipe to lefthand and righthand catalytic converter attaching nuts.
- Lower exhaust and allow to rest on floor panel brace.
- Remove lefthand and righthand converter seal and gasket.
- Remove converter to hanger and then the converter to exhaust manifold attaching nuts.
- Remove righthand catalytic converter.
- Remove starter heat shield bolt and nut, then the starter heat shield.
- Remove starter soleno...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
Cabin Air Filter Service -> General Motors Corp./Saturn -> 2003-09 CTS
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
On 2003-07 models, under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter more often.
On 2008-09 models, under normal operating conditions the cabin air filter should be replaced every 25,000 miles. In dusty areas change the cabin air filter more often.
- Open the hood.
- Remove the rear hood seal from flange on the passenger side air inlet grille panel.
- Remove the four screws retaining the passenger side air inlet grille panel to the cowl panel.
- Lift the passenger side air inlet grille panel and pull inward to...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
General Motors Corp./Saturn Cars -> Low Coolant Lamp ->
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
This lamp should light when engine coolant level in the radiator drops below a predetermined le...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2003 Cadillac CTS 3.2 V6 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 CTS AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
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COMPONENT LOCATION DIAGRAMS FOR 2003 Cadillac CTS AUTOMOBILES
Component location diagrams for most 2003 Cadillac CTS cars and light trucks sold in the U.S. from 1990+.
 Front Of Engine Compartment Diagram for 2003 Cadillac CTS 3.2 V6 GASComponents on diagram: |
 I/P Harness Diagram for 2003 Cadillac CTS 3.2 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 Cadillac CTS AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Cadillac CTS cars and light trucks sold in the U.S.
 2003 Cadillac CTS 3.2 V6 GAS Wiring DiagramComponents on diagram: |
 2003 Cadillac CTS 3.2 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Cadillac CTS AUTOMOBILES
OEM TSB listings for most 2003 Cadillac CTS cars and light trucks sold in the U.S. from 1985+.
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Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2003 Cadillac CTS 3.2 V6 GAS Auto Systems: |
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Document: Squeak/Creak Type Noise from Front of Vehicle When Braking or Turning Vehicle: 2003 Cadillac CTS 3.2 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Cadillac CTS AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Cadillac CTS 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 CTS 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 CTS 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 CTS 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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