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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Chevrolet Impala car and truck
repair procedures including Chevrolet 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 2003 Chevrolet Impala automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2003 Chevrolet Impala
- 2003 Chevrolet Impala 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:K
- 2003 Chevrolet Impala 3.4 V6 GAS, CID:207, Fuel Injection, Aspiration:207, Engine VIN:, Desg:E
- 2003 Chevrolet Impala LS 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:K
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Impala 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 Chevrolet Impala 3.8 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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BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Impala cars and light trucks from 1990+.
Hydraulic Brake Systems -> General Motors -> 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: 2003 Chevrolet Impala 3.8 V6 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 (secondary) 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 (primary) brake system fails, initial brake pedal mo...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Impala BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Impala 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 Chevrolet Impala 3.8 V6 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 Chevrolet Impala BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Impala cars and light trucks from 1990+.
Disc Brakes -> AC-Delco Single Piston Rear Disc Brake (Type 2) -> Caliper Service -> Assemble -> Disassemble -> Replacement
Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS
Replacement
- Raise and support vehicle.
- Mark relationship of wheel to axle flange, then remove wheel and tire assembly.
- Remove brake hose from caliper, Fig. . Plug openings in caliper and brake hose to prevent fluid loss and contamination.
- Lift up on end of cable spring to free end of cable from lever, then disconnect parking brake cable from lever.
- Remove bolt and washer attaching cable support bracket to caliper body assembly.
- Remove sleeve bolt and caliper body assembly.
- Reverse procedure to install, then bleed brakes.
Disassemble
- Remove caliper from vehicle as outlined under "Caliper S... "
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Impala BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Impala cars and light trucks from 1990+.
Power Brake Units -> Power Brake Unit Service
Vehicle: 2003 Chevrolet Impala 3.4 V6 GAS
Hydro-boost brake boosters are...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Impala BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Impala cars and light trucks from 1990+.
Anti-lock Brakes -> Delphi DBC 7 -> Precautions -> ABS Service
Vehicle: 2003 Chevrolet Impala LS 3.8 V6 GAS
ABS Service
Before performing any repairs on the ABS system, note the following precautions:
- Before using electric welding equipment, disconnect EBCM.
- Carefully note routing, position and mounting ABS and TCS wiring, connectors, clips and brackets. ABS and TCS are extremely sensitive to electromagnetic interference.
- Do not use a fast charger when battery is connected. Never disconnect battery from system with engine running.
- Ignition switch must be in Off position when disconnecting EBCM.
- Many ABS system components ...
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