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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 Chevrolet Astro 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
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BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Astro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Astro cars and light trucks from 1990+.
Hydraulic Brake Systems -> Description -> Hydraulic Control Valves -> Master Cylinder
Vehicle: 2004 Chevrolet Astro 4.3 V6 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 Astro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Astro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Astro cars and light trucks from 1990+.
Disc Brakes -> Delco Single Piston Sliding Caliper -> Brake Pad Service -> Installation -> Removal
Vehicle: 2004 Chevrolet Astro 4.3 V6 GAS
Removal
- Remove caliper as outlined under .
- Remove inboard pad with retainer spring.
- Remove outboard pad and position caliper on front suspension so brake hose will not support weight of caliper.
- Remove two sleeves from inboard ears of caliper.
- Remove four rubber bushings from grooves in each of caliper ears.
Installation
- Lubricate new sleeves, rubber bushings, bushing grooves and mounting bolt ends with lubricant part No. 19010909, or equivalent.
- Install new bushings and sleeves in caliper ...
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Astro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Astro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Astro cars and light trucks from 1990+.
Disc Brakes -> Delco Dual Piston Sliding Caliper -> Tightening Specifications
Vehicle: 2004 Chevrolet Astro 4.3 V6 GAS
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Astro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Astro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Astro cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Troubleshooting -> Brakes Grab -> Hard Pedal -> Slow Or No Release
Vehicle: 2004 Chevrolet Astro 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 2004 Chevrolet Astro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Astro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Astro cars and light trucks from 1990+.
Disc Brakes -> Delco Dual Piston Sliding Caliper -> Troubleshooting -> Brake Rattle -> Brake Roughness Or Chatter; Pedal Pumping -> Caliper Brake Fluid Leak -> Excessive Pedal Effort -> Excessive Pedal Travel -> Heavy Brake Drag -> No Braking Effect When Brake Pedal Is Depressed -> Pull, Uneven Or Grabbing Brakes -> Rear Brakes Locking On Application
Vehicle: 2004 Chevrolet Astro 4.3 V6 GAS
Excessive Pedal Travel
- Worn brake linings.
- Disc pads knock back after cornering or rough road travel.
- Piston and linings not properly seated or positioned.
- Insufficient fluid in system.
- Loose wheel bearing adjustment.
- Damaged or worn caliper piston seal.
- Improper booster pushrod adjustment.
- Pads out of flat more than .005 inch.
- Rear brake automatic adjusters inoperative.
- Improperly ground rear brake shoes.
Brake Roughness Or Chatter; Pedal Pumping
- Excessive lateral runout of rotor.
- Rotor excessively out of parallel.
Excessive Pedal Effort
- Frozen or seized pistons.
- Brake fluid, oil or grease on ...
CLICK HERE TO GET FULL ACCESS TO 2004 Chevrolet Astro BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2004 Chevrolet Astro AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2004 Chevrolet Astro cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> General Service
Vehicle: 2004 Chevrolet Astro 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, 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 Astro BRAKE SERVICE PROCEDURES
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