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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Pontiac Sunfire car and truck
repair procedures including Pontiac 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
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BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Sunfire AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Sunfire cars and light trucks from 1990+.
Hydraulic Brake Systems -> General Motors -> Hydraulic Brake System Specifications
Vehicle: 2003 Pontiac Sunfire 2.2 L4 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 Pontiac Sunfire BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Sunfire AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 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) Module -> Enhanced Traction System (ETS) -> System Components -> System Operation -> Traction Control System (TCS) -> Traction Control System (TRAC) On/Off Switch -> Wheel Speed Sensors (WSS)
Vehicle: 2003 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...
CLICK HERE TO GET FULL ACCESS TO 2003 Pontiac Sunfire BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Sunfire AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Sunfire cars and light trucks from 1990+.
Disc Brakes -> AC-Delco Single Piston Front Disc Brake -> Caliper Service -> Disassemble -> Replacement
Vehicle: 2003 Pontiac Sunfire 2.2 L4 GAS
Replacement
- Remove approximately 2/3 of brake fluid from master cylinder.
- Raise and support front of vehicle, then remove wheel and tire assembly.
- Push piston back into caliper bore using suitable C-clamp, Fig. .
- If caliper assembly is being removed for service, remove inlet fitting attaching bolt, copper washer, and inlet fitting from caliper housing. Plug opening in inlet fitting to prevent fluid loss and contamination. Do not crimp brake hose since this may damage hose's internal structure. If only shoe and lining assemblies are to be replaced, do not disconnect brake line fittin...
CLICK HERE TO GET FULL ACCESS TO 2003 Pontiac Sunfire BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Sunfire AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Sunfire cars and light trucks from 1990+.
Disc Brakes -> AC-Delco Single Piston Front Disc Brake -> Precautions
Vehicle: 2003 Pontiac Sunfire 2.2 L4 GAS
- Grease or any other foreign material must be kept off brake linings, caliper, surfaces of disc and external surfaces of hub during service procedures.
- Handling brake disc and caliper should be done in a way to avoid deformation of disc and nicking or scratching brake linings.
- If inspection reveals worn or damaged rubber piston seals, they should be replaced.
- During removal and installation of a wheel assembly, ensure not to interfere with or damage c...
CLICK HERE TO GET FULL ACCESS TO 2003 Pontiac Sunfire BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Sunfire AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Sunfire 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 Pontiac Sunfire 2.2 L4 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...
CLICK HERE TO GET FULL ACCESS TO 2003 Pontiac Sunfire BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Pontiac Sunfire AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Pontiac Sunfire cars and light trucks from 1990+.
Drum Brakes -> Type 1 -> Precautions
Vehicle: 2003 Pontiac Sunfire 2.2 L4 GAS
When working on or around brake assemblies, care must be taken to prevent breathing asbestos dust, as many manufacturers incorporate asbestos fibers in the production of brake linings. During routine service operations the amount of asbestos dust from brake lining wear is at a low level due to a chemical breakdown during use, and a few precautions will minimize exposure.
- Do not sand or grind brake linings unless suitable local exhaust ventilation equipment is used to prevent excessive asbestos exposure.
- Wear a suitable respirator approved for asbestos dust use during all repair proced...
CLICK HERE TO GET FULL ACCESS TO 2003 Pontiac Sunfire BRAKE SERVICE PROCEDURES
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