2005 Pontiac Sunfire Brake Service (ONLINE REPAIR MANUALS)

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BRAKE SERVICE PROCEDURES FOR 2005 Pontiac Sunfire AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2005 Pontiac Sunfire cars and light trucks from 1990+.

Hydraulic Brake Systems -> Diagnosis & Testing
Vehicle: 2005 Pontiac Sunfire 2.2 L4 GAS

Refer to...

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BRAKE SERVICE PROCEDURES FOR 2005 Pontiac Sunfire AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2005 Pontiac Sunfire cars and light trucks from 1990+.

Disc Brakes -> AC-Delco Single Piston Front Disc Brake -> Tightening Specifications
Vehicle: 2005 Pontiac Sunfire 2.2 L4 GAS

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BRAKE SERVICE PROCEDURES FOR 2005 Pontiac Sunfire AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2005 Pontiac Sunfire cars and light trucks from 1990+.

Disc Brakes -> AC-Delco Single Piston Front Disc Brake -> Brake System Bleed -> Bleed Sequence -> Manual -> Pressure
Vehicle: 2005 Pontiac Sunfire 2.2 L4 GAS

Manual

Pressure bleeding is recommended for all hydraulic systems. However, if a pressure bleeder is unavailable, use the following procedure. Brake fluid damages painted surfaces. Immediately clean any spilled fluid.

  • Remove vacuum reserve by pumping brakes several times with engine off.
  • Fill master cylinder reservoir with clean brake fluid. Do not let reservoir fall below half full during bleeding procedure.
  • If required, bleed master cylinder as follows:
    • Loosen master cylinder forward brake line connection until fluid flows from reservoir, then tighten brake line.
    • Have assistant t...

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BRAKE SERVICE PROCEDURES FOR 2005 Pontiac Sunfire AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2005 Pontiac Sunfire cars and light trucks from 1990+.

Hydraulic Brake Systems -> Component Service -> Assemble -> Aura, Bonneville, DTS, ION, LeSabre, Lucerne, Park Avenue, Solstice & SKY -> Aveo -> Corvette -> CTS -> Disassemble -> Except Aura, Aveo, Bonneville, Cobalt, Corvette, CTS, DTS, G5, ION, L-Series, LaCrosse, LeSabre, Lucerne, Park Avenue, Solstice, SKY, STS, Vibe & XLR -> L-Series -> LaCrosse, STS & XLR -> Master Cylinder Overhaul -> Vibe -> Wheel Cylinder Overhaul
Vehicle: 2005 Pontiac Sunfire 2.2 L4 GAS

Master Cylinder Overhaul

Except Aura, Aveo, Bonneville, Cobalt, Corvette, CTS, DTS, G5, ION, L-Series, LaCrosse, LeSabre, Lucerne, Park Avenue, Solstice, SKY, STS, Vibe & XLR
Disassemble

Refer to Figs. and when performing the following procedures.

  • Disconnect and plug hydraulic lines.
  • Remove mounting nuts and master cylinder.
  • Remove reservoir cover and diaphragm. Discard old brake fluid.
  • Inspect cover and diaphragm.
  • Remove fluid level switch.
  • On models equipped with compact master cylinder,remove proportioning valve, Fig. .
  • On all models, depress primary piston and remove lock ring.
  • Plu...

CLICK HERE TO GET FULL ACCESS TO 2005 Pontiac Sunfire BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 2005 Pontiac Sunfire AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2005 Pontiac Sunfire cars and light trucks from 1990+.

Hydraulic Brake Systems -> Description -> Brake Distribution Valve & Switch -> Brake Warning Lamp Switches -> Combination Valve -> Components -> Diagonally Split System -> Failure Warning Switch -> Fluid Level Sensor -> Front & Rear Split System -> Metering Valve -> Proportioning Or Pressure Control Valve -> Warning Lamp
Vehicle: 2005 Pontiac Sunfire 2.2 L4 GAS

Front & Rear Split System

When the brake pedal is depressed, both the primary (front brake) and the secondary (rear brake) master cylinder pistons are moved simultaneously to exert hydraulic fluid pressure on their respective systems.

If the rear brake system fails, initial brake pedal movement will cause the unrestricted secondary piston to bottom in the master cylinder bore. Primary piston movement will displace hydraulic fluid in the primary section of the master cylinder to actuate the front brake system.

If the front brake system fails, initial brake pedal movement will cause the ...

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BRAKE SERVICE PROCEDURES FOR 2005 Pontiac Sunfire AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2005 Pontiac Sunfire cars and light trucks from 1990+.

Anti-Lock Brakes -> Delphi DBC 7 -> Description -> Anti-Lock Brake System (ABS) -> Brake Pressure Modulator Valve (BPMV) -> Electronic Brake Control Module (EBCM) -> Enhanced Traction System (ETS) -> System Components -> System Operation -> Traction Control System (TCS) -> Traction Control System (TRAC) On/Off Switch -> Wheel Speed Sensors (WSS)
Vehicle: 2005 Pontiac Sunfire 2.2 L4 GAS

System Operation

Anti-Lock Brake System (ABS)

The ABS system will control hydraulic pressure in the individual wheel circuits to prevent any wheel from slipping. A separate hydraulic line and specific solenoid valves are provided for each wheel. The ABS can decrease, hold or increase hydraulic pressure to each wheel brake. However, it cannot increase hydraulic pressure above what the master cylinder is transmitting.

Enhanced Traction System (ETS)

The ETS limits wheel slip during acceleration when one or more of the drive wheels are accelerating too rapidly and the brake switch is off. T...

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