2003 GMC Yukon XL 1500 Brake Service (ONLINE REPAIR MANUALS)

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 GMC Yukon XL 1500 car and truck repair procedures including GMC 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 GMC Yukon XL 1500 automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2003 GMC Yukon XL 1500

  • 2003 GMC Yukon XL 1500 5.3 V8 GAS, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:T
  • 2003 GMC Yukon XL 1500 5.3 V8 FLEX, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:Z

BRAKE SERVICE PROCEDURES FOR 2003 GMC Yukon XL 1500 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Yukon XL 1500 cars and light trucks from 1990+.

Power Brake Units -> Bendix Brake Booster -> Power Brake Unit Service -> Accumulator Service -> Assemble -> Booster Bleed -> Cleaning & Inspection -> Disassemble
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 FLEX

Disassemble

  • Place accumulator compressor tool No. J-26889, or equivalent, around end of accumulator.
  • Install nut onto stud as in. Fig. , then depress accumulator with a C-clamp.
  • Remove retainer by using a punch.
  • Release C-clamp and remove accumulator compressor tool.
  • Remove accumulator, O-ring, retainer, plug and spring,. Fig. .
  • Remove retainer, output pushrod, baffle, piston return spring and retainer.
  • Cut off eyelet of pedal rod, then remove boot.
  • Remove nut, bracket and bolts, then separate cover from housing.
  • Remove piston assembly and seals.
  • Remove spool valve, then the accu...

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BRAKE SERVICE PROCEDURES FOR 2003 GMC Yukon XL 1500 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Yukon XL 1500 cars and light trucks from 1990+.

Disc Brakes -> Delco Dual Piston Sliding Caliper -> Precautions -> Brake Disc Service -> Brake Lines & Linings -> Brake Roughness -> General
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 FLEX

Brake Lines & Linings

Remove one of the front wheels and inspect the brake disc, caliper and linings.

Do not allow any oil or grease on the linings. It is recommended that linings be replaced in sets when worn or damaged.

If the caliper is cracked or fluid leakage through the casting is evident, it must be replaced as a unit.

Brake Roughness

The most common cause of brake chatter on disc brakes is a variation in thickness of the disc. If roughness or vibration is encountered during highway operation or if pedal pumping is experienced at low speeds, the disc may have excessive thickness v...

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BRAKE SERVICE PROCEDURES FOR 2003 GMC Yukon XL 1500 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Yukon XL 1500 cars and light trucks from 1990+.

Hydraulic Brake Systems -> Adjustments -> Height Sensing Proportioning Valve
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 GAS

Height Sensing Proportioning Valve

The height sensing proportioning valve must be adjusted whenever the valve and/or linkage is disassembled or removed for service. In addition, adjustment should be inspected if excessive front wheel lock-up is experienced with a lower than desired brake application rate when vehicle is at or near maximum GVWR.

  • Raise and support vehicle, leave wheels on and allow axle to hang freely.
  • Remove lever retaining nut and disconnect lever from valve shaft,. Fig. .
  • Rotate valve shaft to permit installation of correct adjustment gauge,. Fig. , ensure D shaped hol...

CLICK HERE TO GET FULL ACCESS TO 2003 GMC Yukon XL 1500 BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 2003 GMC Yukon XL 1500 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Yukon XL 1500 cars and light trucks from 1990+.

Drum Brakes -> Tightening Specifications
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 GAS

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BRAKE SERVICE PROCEDURES FOR 2003 GMC Yukon XL 1500 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Yukon XL 1500 cars and light trucks from 1990+.

Power Brake Units -> Bendix Brake Booster -> Description
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 FLEX

In order to properly service power brake systems, a thorough understanding of the power assist system 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.

Hydraulic assist units incorporate a basic open center spool valve, hydraulic cylinder and an accumulator assembly in a common housing. When the brake pedal is depressed, the hydraulic piston moves forward closing off fluid relief passages, the spool valve applies fluid ...

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BRAKE SERVICE PROCEDURES FOR 2003 GMC Yukon XL 1500 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 2003 GMC Yukon XL 1500 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: 2003 GMC Yukon XL 1500 5.3 V8 FLEX

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 the 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...

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