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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Chevrolet Trailblazer 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 Trailblazer automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2003 Chevrolet Trailblazer
- 2003 Chevrolet Trailblazer 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
- 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
- 2003 Chevrolet Trailblazer EXT 5.3 V8 GAS, CID:325, Fuel Injection, Aspiration:325, Engine VIN:, Desg:P
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Trailblazer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Trailblazer cars and light trucks from 1990+.
Hydraulic Brake Systems -> Description -> Hydraulic Control Valves -> Master Cylinder
Vehicle: 2003 Chevrolet Trailblazer EXT 4.2 L6 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 2003 Chevrolet Trailblazer BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Trailblazer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Trailblazer cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> General Service
Vehicle: 2003 Chevrolet Trailblazer EXT 5.3 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 2003 Chevrolet Trailblazer BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Trailblazer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Trailblazer cars and light trucks from 1990+.
Disc Brakes -> Delco Dual Piston Sliding Caliper -> Caliper Service -> Assemble -> Disassemble -> Inspection -> Installation -> Removal
Vehicle: 2003 Chevrolet Trailblazer EXT 4.2 L6 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 ar...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Trailblazer BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Trailblazer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Trailblazer cars and light trucks from 1990+.
Drum Brakes -> Inspection -> Adjuster Mechanism -> Backing Plate -> Brake Drums -> Brake Linings & Springs -> General System -> Parking Brake Cable
Vehicle: 2003 Chevrolet Trailblazer 4.2 L6 GAS
General System
- Inspect components for damage or unusual wear. Replace as required.
- Inspect backing plate mounting bolts and ensure they are tight.
- Inspect wheel cylinders. Excessive fluid indicates cup leakage and need for wheel cylinder replacement. Slight amount of fluid is always present and is considered normal, acting as lubricant for cylinder pistons.
- Inspect adjuster screw operation. If satisfactory, lightly lubricate adjusting screw and washer with suitable brake lube. If operation is unsatisfactory, replace.
- Clean rust and dirt from shoe contact surfaces on backing plate using fi...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Trailblazer BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Trailblazer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Trailblazer cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Troubleshooting -> Brakes Grab -> Hard Pedal -> Slow Or No Release
Vehicle: 2003 Chevrolet Trailblazer EXT 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 Trailblazer BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Trailblazer AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 Chevrolet Trailblazer cars and light trucks from 1990+.
Hydraulic Brake Systems -> Component Replacement -> Master Cylinder
Vehicle: 2003 Chevrolet Trailblazer EXT 4.2 L6 GAS
Master Cylinder
- On models equipped with manual brake system, disconnect master cylinder pushrod from brake pedal.
- On all models, disconnect all wire conne...
CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Trailblazer BRAKE SERVICE PROCEDURES
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