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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 -> Delco Brake Booster -> Troubleshooting -> Brakes Grab -> Hard Pedal -> Slow Or No Release
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 FLEX

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 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+.

Hydraulic Brake Systems -> Description -> Hydraulic Control Valves -> Master Cylinder
Vehicle: 2003 GMC Yukon XL 1500 5.3 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 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+.

Power Brake Units -> Delco Brake Booster -> Description -> Operation -> Single Diaphragm Type -> Tandem (Dual) Diaphragm Type
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 FLEX

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 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+.

Power Brake Units -> Bendix Brake Booster -> Power Brake Unit Replacement -> Astro & Safari -> C & K Series -> Express & Savana -> P Series
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 FLEX

Astro & Safari

  • Apply parking brake.
  • Disconnect reservoir and power steering hoses from booster.
  • Remove master cylinder to brake booster retaining nuts.
  • Position and support master cylinder away from booster.. Do not remove hydraulic lines from master cylinder.
  • Remove booster rod from top of brake pedal.
  • Remove booster mounting nuts from inside of vehicle.
  • Remove booster assembly and gasket.
  • Reverse procedure to install, noting the following:
    • Torque booster mounting nuts to 27 ft. lbs.
    • Torque master cylinder retaining nuts to 27 ft. lbs.
    • Torque power steering hoses to booster n...

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+.

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...

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+.

Disc Brakes -> Delco Dual Piston Sliding Caliper -> Caliper Service -> Assemble -> Disassemble -> Inspection -> Installation -> Removal
Vehicle: 2003 GMC Yukon XL 1500 5.3 V8 FLEX

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 GMC Yukon XL 1500 BRAKE SERVICE PROCEDURES

Shop online for auto body parts, engines, wheels, lights...

Click here to view more details about 2009 GMC Yukon XL 1500 Antenna2009 GMC Yukon XL 1500 Antenna, 1-section mast; 470 mm extension; Stick-on; A high quality universal imitation antenna; May require modification or other adjustment to your vehicle upon installation..

Source: Auto Body Parts Store

$5.01

Click here to view more details2003 GMC Yukon XL 1500 Neutral Safety Switch, Blade type; 4-prong and 7-prong male terminals; A high quality, OE replacement neutral safety switch; With 1-year limited TruckEFX warranty..

Source: Auto Body Parts Store

$37.58

Click here to view more details2014 GMC Pickup Sierra 2500-3500 CCI Grille Overlay, CCI Grille Overlay; 1 Piece; Chrome Finish; ABS, , .

Source: Wheels / Rims, Mirrors & Lights Store

$132.50

Click here to view more details2005 GMC Yukon XL 1500 V8, 5.3 L, 322 CID Rebuilt Engine, 5.3 CHEVY,GMC, Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

$1,866.00

Click here to view more details2006 GMC Yukon XL 1500 Used Starter, 4.8, AUTO, 4X2, Very Good.

Source: Used Auto Parts Store

$87.00

Click here to view more details2012 GMC Yukon XL 1500 Used Bumper Cover, Rear, COVER ONLY, 20951791, W/SENSOR HOLES, Good.

Source: Used Auto Parts Store

$431.00
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