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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 Chevrolet Avalanche 2500 car and truck
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BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Avalanche 2500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Avalanche 2500 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Power Brake Unit, Replace -> Astro, Avalanche, Escalade EXT, Safari, Sierra, Silverado & SSR -> Aztek & Rendezvous -> Blazer, Bravada, Envoy, Jimmy, Rainier & Trailblazer -> Canyon, Colorado, Sonoma & S10 -> Equinox & Torrent -> Escalade, HHR, Suburban, Tahoe & Yukon -> Express & Savana -> Hummer H2 -> Hummer H3 -> Montana, Silhouette & Venture -> Relay, Terraza, SV6 & Uplander -> SRX -> Vue
Vehicle: 2004 Chevrolet Avalanche 2500 8.1 V8 GAS
Aztek & Rendezvous
- Remove coolant reservoir, then relieve fuel system pressure as follows:
- Loosen fuel filler cap to discharge tank pressure.
- Connect fuel pressure gauge tool No. J-34730-1A, or equivalent, to fuel pressure connection. Wrap shop towel around connection while connecting fuel pressure gauge in order to avoid fuel spillage.
- Install bleed hose into an approved container and open valve in order to bleed fuel system pressure.
- Drain any fuel remaining in fuel pressure gauge into suitable container.
- Remove cruise control cable from module, then disconnect electrical ...
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Avalanche 2500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Avalanche 2500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Avalanche 2500 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Troubleshooting -> Brakes Grab -> Hard Pedal -> Slow Or No Release
Vehicle: 2004 Chevrolet Avalanche 2500 8.1 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 Avalanche 2500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Avalanche 2500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Avalanche 2500 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Description -> Operation -> Single Diaphragm Type -> Tandem (Dual) Diaphragm Type
Vehicle: 2004 Chevrolet Avalanche 2500 8.1 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 Chevrolet Avalanche 2500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Avalanche 2500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Avalanche 2500 cars and light trucks from 1990+.
Hydraulic Brake Systems -> Description -> Hydraulic Control Valves -> Master Cylinder
Vehicle: 2004 Chevrolet Avalanche 2500 8.1 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 Avalanche 2500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Avalanche 2500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Avalanche 2500 cars and light trucks from 1990+.
Hydraulic Brake Systems -> Component Replacement -> Master Cylinder
Vehicle: 2004 Chevrolet Avalanche 2500 8.1 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 Avalanche 2500 BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Avalanche 2500 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Avalanche 2500 cars and light trucks from 1990+.
Anti-Lock Brakes -> Kelsey-Hayes -> Diagnosis & Testing -> 2002 -> 2002-03 -> 2003-06 -> 2004-06 -> Accessing Diagnostic Trouble Codes -> Astro, Blazer, Jimmy, Safari, Sonoma, SSR & S10 -> Avalanche, Escalade, Escalade EXT, Suburban, Tahoe & Yukon -> Bravada, Envoy, Rainier & Trailblazer -> Clearing Diagnostic Trouble Codes -> Connector Pin Identification -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> Express & Savana -> Intermittents & Poor Connections -> Sierra & Silverado -> Symptom Tests -> Temperature Vs. Resistance
Vehicle: 2004 Chevrolet Avalanche 2500 8.1 V8 GAS
Accessing Diagnostic Trouble Codes
Connect a suitably programmed scan tool to Data Link Connector (DLC) and follow manufacturers instructions.
Diagnostic Trouble Code Interpretation
Astro, Blazer, Jimmy, Safari, Sonoma, SSR & S10
[[table data]]Avalanche, Escalade, Escalade EXT, Suburban, Tahoe & Yukon
2002
[[table data]]2003-06
[[table data]]Bravada, Envoy, Rainier & Trailblazer
2002-03
[[table data]]2004-06
[[table data]]Express & Savana
2002
[[table data]]2003-06
[[table data]]Sierra & Silverado
2002
[[table data]]2003-06
[[table data]]Connector Pin Identification
[[table data]]Diagnostic Tests
Astro, Blazer, Jimmy, Safari, Sonoma, SSR & S10
[[table data]]Avalanche, Escalade, Escalade EXT, Suburban, Tahoe & Yukon
2002
[[table data]]2003-06
[[table data]]Bravada, Envoy, Rai...
[[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]]CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Avalanche 2500 BRAKE SERVICE PROCEDURES
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