2003 Cadillac CTS Brake Service (ONLINE REPAIR MANUALS)

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BRAKE SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Cadillac CTS cars and light trucks from 1990+.

Hydraulic Brake Systems -> General Motors -> Component Replacement -> Master Cylinder
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS

Master Cylinder

  • On Vibe models, remove air filer hose clamp and hose from throttle body.
  • On all models, disconnect fluid level sensor retainer and electrical connector.
  • Drain master cylinder reservoir brake fluid into suita...

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BRAKE SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Cadillac CTS cars and light trucks from 1990+.

Disc Brakes -> AC-Delco Dual Piston Front Disc Brake -> Brake Pad Service
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS

  • Remove caliper as outlined under "Caliper Service."
  • Lift upward on outward shoe retaining spring of outboard shoe until it clears center lug, then remove shoe from caliper.
  • Pull inboard shoe outward to disengage retainer springs from pistons, then remove inbo...

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BRAKE SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Cadillac CTS cars and light trucks from 1990+.

Disc Brakes -> AC-Delco Single Piston Rear Disc Brake (Type 2) -> Description
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS

The caliper assembly, Fig. , has a single bore and is mounted to the support bracket with two mounting bolt and sleeve assemblies. Hydraulic pressure created by applying the brake pedal is converted by the caliper to a stopping force. This force acts equally against the piston and the bottom of the piston bore to move the piston outward and to slide the caliper inward resulting in a clamping action. This clamping action presses the linings against the rotor, creating friction to stop the vehicle.

When the parking brake is applied, the external caliper parking brake lever moves and ro...

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BRAKE SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Cadillac CTS cars and light trucks from 1990+.

Power Brake Units -> Precautions
Vehicle: 2003 Cadillac CTS 3.2 V6 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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BRAKE SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Cadillac CTS cars and light trucks from 1990+.

Anti-lock Brakes -> Delphi DBC 7 -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Alero, Cavalier, Grand Am, Malibu & Sunfire -> Century, Impala, Monte Carlo & Regal -> Clearing Diagnostic Trouble Codes -> CTS -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> EBCM Terminal Identification -> Electromagnetic Interference Test -> Intermittents & Poor Connections -> Wiring Diagrams
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS

Accessing Diagnostic Trouble Codes

Diagnostic Trouble Codes (DTCs) may be read using a suitably programed scan tool. There are no provisions for flash code diagnostics.

  • Turn ignition switch to Off position.
  • Connect suitably programmed scan tool connected to Data Link Connector (DLC), located under lefthand side of instrument panel below steering column.
  • Turn ignition switch to On position.
  • Select scan tool Special Functions.
  • Select and run Automated Test.
  • Record all DTCs.

Diagnostic Trouble Code Interpretation

Diagnostic Trouble Codes (DTCs) may be read using a suitably programmed sc...

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BRAKE SERVICE PROCEDURES FOR 2003 Cadillac CTS AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Cadillac CTS cars and light trucks from 1990+.

Anti-lock Brakes -> Delphi DBC 7 -> System Service -> Alero & Grand Am -> Alero, Cavalier, Century, Grand Am, Impala, Monte Carlo, Regal & Sunbird -> Alero, Cavalier, Grand Am & Sunfire -> Automated Bleed -> BPMV Bracket -> Brake Pressure Modulator Valve (BPMV) -> Brake System Bleed -> Cavalier & Sunfire -> Century, Impala, Monte Carlo & Regal -> Component Replacement -> CTS -> Electronic Brake Control Module (EBCM) -> Front -> Hydraulic System Flush -> Malibu -> Manual Bleed -> Manual Flush -> Pressure Flush -> Rear -> Wheel Speed Sensor
Vehicle: 2003 Cadillac CTS 3.2 V6 GAS

Brake System Bleed

In most circumstances a manual brake bleed is all that is required. Automated ABS bleeding is required under the following conditions: when manual bleeding does not achieve desired pedal height or feel; brake pressure modulator valve (BPMV) replacement; extreme loss of brake fluid; air ingestion is suspected.

Manual Bleed

Use suitable container to catch fluid.

  • Clean reservoir cover and surrounding area.
  • Remove cover, fill fluid reservoir and install cover.
  • Attach one end of a clear plastic hose to rear hydraulic modulator bleeder valve, then submerge other end of hos...

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