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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
A/C & HEATER SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Domestic Vehicles
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
Disc Brakes -> AC-Delco Single Piston Rear Disc Brake (Type 2) -> Adjustments -> Parking Brake
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
Parking Brake
- Cycle brake system as follows:
- Apply service brake with a pedal force of 175 lbs., and release.
- Fully apply parking brake using approximately 125 lbs., of force on final stroke, then release.
- Apply and release parking brake two additional times as described above.
- Inspect parking brake pedal assembly for full release by turning ignition On and observing brake warning lamp, which should be off.
- If brake warning lamp is on and parking brake appears to be fully released, operate manual pedal release lever and pull downward on front park brake cable to remove slack from pedal as...
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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
DRIVESHAFT, Replace
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
- Raise and support vehicle.
- Remove exhaust system. Remove only propeller shaft coupler-to-transmission flange bolts. Do NOT remove coupler from propeller shaft.
- Remove propeller shaft coupler-to-transmission flange bolts and nuts. Remove only propeller shaft coupler-to-differential flange bolts. Do NOT remove coupler from propeller shaft.
- Remove propeller shaft coupler-to-differential flange bolts and nuts.
- Support propeller shaft at support bearing.
- Remove nuts securing support bearing to vehicle underbody.
- Push front propeller shaft toward rear of vehicle in order to release prop...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES
Alternator, Replace
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
- Disconnect battery ground cable.
- Disconnect air intake duct hose from Mass Air Flow (MAF) and Intake Air Temperature (IAT) sensor.
- Remove intake air resonator to cooling fan attaching bolts.
- Disconnect air intake duct hoses from throttle body then lift intake air resonator from frame.
- Rotate drivebelt tensioner clockwise to release tension.
- Slide drive belt from water pump pulley, allowing tensioner to return and then remove dri...
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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 -> Check Gauge Warning Lamp ->
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS
The Check Gauge warning lamp will light to warn the driver to inspect the oil pressure gauge, engine coolant temperature ga...
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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+.
Battery & The Rear Fuse Blocks Diagram for 2003 Cadillac CTS 3.2 V6 GAS Components on diagram: |
Passenger Compartment Diagram for 2003 Cadillac CTS 3.2 V6 GAS Components 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 Diagram Components on diagram: |
2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram Components 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+.
Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2003 Cadillac CTS 3.2 V6 GAS Auto Systems: |
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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