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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Chevrolet Express 1500 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 Express 1500 automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2003 Chevrolet Express 1500
- 2003 Chevrolet Express 1500 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:X
- 2003 Chevrolet Express 1500 5.3 V8 GAS, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:T
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Express 1500 cars and light trucks from 1990+.
Power Brake Units -> Bendix Brake Booster -> General Service
Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS
Certain general service procedures apply, regardless of whether the brakes are vacuum or hydraulically assisted. Only top quality, clean brake fluid should be used. More seals and valves are used with power brake systems than with ordinary brakes, so an inferior brake fluid will do much more damage. For the same reason, ensure all dirt is kept out of the system. Additionally, care must be taken not to mix the fluids of the booster hydraulic system and brake hydraulic system as the fluids are not compatible.
If the power unit fails, the brakes will still operate, as the convention...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Express 1500 cars and light trucks from 1990+.
Anti-Lock Brakes -> Kelsey-Hayes -> Description
Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS
When wheel slip is detected during a brake application, the ABS enters anti-lock mode. During anti-lock braking, hydraulic pressure in the individual wheel circuits is controlled 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. The ABS cannot, however, increase hydraulic pressure above the amount which is transmitted by the master cylinder during braking.
During anti-lock braking, a series of rapid pulsations is felt in the brake pedal...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Express 1500 cars and light trucks from 1990+.
Power Brake Units -> Bendix Brake Booster -> Power Brake Unit Replacement -> Astro & Safari -> C & K Series -> Express & Savana -> P Series
Vehicle: 2003 Chevrolet Express 1500 5.3 V8 GAS
Astro & Safari
- Apply parking brake.
- Disconnect reservoir and power steering hoses from booster.
- Remove master cylinder to brake booster retaining nuts.
- Position and support master cylinder away from booster.. Do not remove hydraulic lines from master cylinder.
- Remove booster rod from top of brake pedal.
- Remove booster mounting nuts from inside of vehicle.
- Remove booster assembly and gasket.
- Reverse procedure to install, noting the following:
- Torque booster mounting nuts to 27 ft. lbs.
- Torque master cylinder retaining nuts to 27 ft. lbs.
- Torque power steering hoses to booster n...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Express 1500 cars and light trucks from 1990+.
Hydraulic Brake Systems -> Adjustments -> Height Sensing Proportioning Valve
Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS
Height Sensing Proportioning Valve
The height sensing proportioning valve must be adjusted whenever the valve and/or linkage is disassembled or removed for service. In addition, adjustment should be inspected if excessive front wheel lock-up is experienced with a lower than desired brake application rate when vehicle is at or near maximum GVWR.
- Raise and support vehicle, leave wheels on and allow axle to hang freely.
- Remove lever retaining nut and disconnect lever from valve shaft,. Fig. .
- Rotate valve shaft to permit installation of correct adjustment gauge,. Fig. , ensure D shaped hol...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Express 1500 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Troubleshooting -> Brakes Grab -> Hard Pedal -> Slow Or No Release
Vehicle: 2003 Chevrolet Express 1500 4.3 V6 GAS
Hard Pedal
- Internal vacuum leak.
- Faulty control valve.
- Broken or damaged hydraulic brake lines.
- Collapsed or damaged vacuum hose.
- Plugged or loose vacuum fitting.
- Bad stud welds on front or rear housing on power head.
- Faulty booster diaphragm.
- Restricted air filter element.
- Worn or distorted reaction plate or levers.
- Cracked or broken pow...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Express 1500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Express 1500 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Troubleshooting -> Brakes Grab -> Hard Pedal -> Slow Or No Release
Vehicle: 2003 Chevrolet Express 1500 5.3 V8 GAS
Hard Pedal
- Internal vacuum leak.
- Faulty control valve.
- Broken or damaged hydraulic brake lines.
- Collapsed or damaged vacuum hose.
- Plugged or loose vacuum fitting.
- Bad stud welds on front or rear housing on power head.
- Faulty booster diaphragm.
- Restricted air filter element.
- Worn or distorted reaction plate or levers.
- Cracked or broken pow...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Express 1500 BRAKE SERVICE PROCEDURES
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