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BRAKE SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Hummer H2 cars and light trucks from 1990+.
Hydraulic Brake Systems -> Description -> Hydraulic Control Valves -> Master Cylinder
Vehicle: 2004 Hummer H2 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 Hummer H2 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Hummer H2 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Description -> Operation -> Single Diaphragm Type -> Tandem (Dual) Diaphragm Type
Vehicle: 2004 Hummer H2 6.0 V8 GAS
In order to properly service power brake systems, a thorough understanding of the various power assist systems is required. These systems provide a mechanical assist, acting to increase the force applied to the master cylinder piston by the driver while decreasing the effort required to obtain acceptable stopping performance. Two basic types of power assist mechanisms are used: vacuum assist diaphragm assemblies which use engine vacuum and in some cases vacuum from an external vacuum pump, and hydraulic assist assemblies which use hydraulic pressure developed by an external pump (us...
CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Hummer H2 cars and light trucks from 1990+.
Anti-Lock Brakes -> Bosch 5.3 & 8.0 -> System Service -> ABS Automated Bleed -> Brake Pressure Modulator Valve (BPMV) -> Brake System Bleed -> Component Replacement -> Electronic Brake Control Module (EBCM) -> Hydraulic Brake System Bleeding -> Manual -> Pressure -> Wheel Speed Sensor
Vehicle: 2004 Hummer H2 6.0 V8 GAS
Brake System Bleed
ABS Automated Bleed
In most circumstances a base brake bleed is all that is required for most component replacements (such as wheel cylinders, calipers, brake tubes, and master cylinder) except for BPMV replacement.
The following automated ABS bleed procedure is required when one of the following occur: Manual bleeding at the wheel cylinders does not achieve the desired pedal height or feel. Brake Pressure Modulator Valve replacement (BPMV). Extreme loss of brake fluid has occurred. Air ingestion is suspected.
If none of the above conditions apply use standard blee...
CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Hummer H2 cars and light trucks from 1990+.
Hydraulic Brake Systems -> Brake System Bleed -> Hydraulic System Flush -> Manual Bleed -> Master Cylinder Bleed -> Parking Brake Bleed -> Pressure Bleed
Vehicle: 2004 Hummer H2 6.0 V8 GAS
Manual Bleed
- If vehicle is equipped with power brakes, remove vacuum reserve by applying brakes several times with engine off.
- Fill master cylinder reservoirs with suitable brake fluid. Ensure to always keep master cylinder reservoirs at least half full during entire bleeding procedure.
- If master cylinder is suspected to have air in bore, it must be bled first. To bleed master cylinder, proceed as follows:
- Disconnect forward brake pipe connection at master cylinder.
- Allow brake fluid to fill master cylinder bore until it begins to flow from forward pipe connector port.
- Connect and ...
CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Hummer H2 cars and light trucks from 1990+.
Disc Brakes -> Delco Dual Piston Sliding Caliper -> Rotor, Replace
Vehicle: 2004 Hummer H2 6.0 V8 GAS
- Raise and support vehicle, then remove wheel and tire assemblies.
- Compress caliper pistons until they bottom in bores using suitable clamp.
- Remove calip...
CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Hummer H2 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Power Brake Unit Service
Vehicle: 2004 Hummer H2 6.0 V8 GAS
The power brake unit is n...
CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 BRAKE SERVICE PROCEDURES
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