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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 Chevrolet Express 3500 car and truck
repair procedures including Chevrolet engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
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procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
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BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Express 3500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Express 3500 cars and light trucks from 1990+.
Hydraulic Brake Systems -> Description -> Hydraulic Control Valves -> Master Cylinder
Vehicle: 2004 Chevrolet Express 3500 6.0 V8 GAS
Master Cylinder
Some vehicles use a conventional tandem master cylinder with two hydraulic pistons operating in-line. The primary piston controls the front brake system and the secondary piston controls the rear brake system.
Other models use a master cylinder that operates the same as the conventional master cylinder, but also incorporates a quick take-up feature in the rear chamber to reduce excessive pedal travel which may result from increased fluid displacement required to move the low drag caliper piston out against the rotor.
The quick take-up uses a spring-loaded ball check val...
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Express 3500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Express 3500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Express 3500 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> General Service
Vehicle: 2004 Chevrolet Express 3500 6.0 V8 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, on models with hydraulic assist brakes, 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 brak...
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Express 3500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Express 3500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Express 3500 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Troubleshooting -> Brakes Grab -> Hard Pedal -> Slow Or No Release
Vehicle: 2004 Chevrolet Express 3500 6.0 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 2004 Chevrolet Express 3500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Express 3500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Express 3500 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Power Brake Unit Service
Vehicle: 2004 Chevrolet Express 3500 6.0 V8 GAS
The power brake unit is n...
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Express 3500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Express 3500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Express 3500 cars and light trucks from 1990+.
Disc Brakes -> Delco Dual Piston Sliding Caliper -> Caliper Service -> Assemble -> Disassemble -> Inspection -> Installation -> Removal
Vehicle: 2004 Chevrolet Express 3500 6.0 V8 GAS
Removal
- Siphon 2/3 of the brake fluid from master cylinder.
- Raise and support vehicle.
- Remove tire and wheel assembly.
- Compress caliper pistons until they bottom in bores using suitable clamp, Fig. .
- Disconnect brake hose at caliper by removing inlet fitting bolt.
- Remove mounting bolts and caliper.
Inspection
Should it become required to remove the caliper for installation of new components, clean components in denatured alcohol, wipe dry using lint-free cloths. Blow out drilled passages and holes using compressed air. Inspect dust boots for punctures or tears. If punctures or tears are...
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Express 3500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Express 3500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Express 3500 cars and light trucks from 1990+.
Hydraulic Brake Systems -> Component Replacement -> Master Cylinder
Vehicle: 2004 Chevrolet Express 3500 6.0 V8 GAS
Master Cylinder
- On models equipped with manual brake system,disconnect master cylinder pushrod from brake pedal.
- On all models, disconnect all wire con...
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Express 3500 BRAKE SERVICE PROCEDURES
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