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2003 Chevrolet Silverado 2500 HD CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Chevrolet Silverado 2500 HD 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 Chevrolet Silverado 2500 HD automobile. Try the Automotix DIY solution today!
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Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Chevrolet mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 2003 Chevrolet Silverado 2500 HD vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

Component Replacement & Adjustment -> Sierra & Silverado -> Accumulator, Replace
Vehicle: 2003 Chevrolet Silverado 2500 HD 8.1 V8 GAS

  • Recover refrigerant as outlined in .
  • Remove nut from evaporator tube from evaporator.
  • Remove evaporator tube nut from accumulator.
  • Disconnect low pressure switch electrical connector.
  • Remove nut and compressor hose from accumulator.
  • Remove evaporator fitting nut.
  • Remove mounting nut from bracket stud...

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BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

Power Brake Units -> Bendix Brake Booster -> Power Brake Unit Replacement -> Astro & Safari -> C & K Series -> Express & Savana -> P Series
Vehicle: 2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS

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...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Component Locations -> 1999-06 Silverado & Sierra
Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

Refer ...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS

  • Raise and support vehicle.
  • Remove wheel and tire assembly.
  • Remove drive axle center cap, if equipped.
  • Insert a drift or large screwdriver through brake caliper into one of the brake rotor vanes in order to prevent drive axle wheel drive shaft from turning.
  • Remove nut and washer from hub. Do not reuse nut. A new nut must be used when installing wheel drive shaft.
  • Using J 45859 or equivalent, press wheel drive shaft from hub.
  • Remove bolts securing wheel drive shaft ...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

Starter, Replace
Vehicle: 2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS

  • Disconnect battery ground cable.
  • Remove mounting bolts and engine shield, if required.
  • Remove mounting bolts and oil pan skid plate, if required.
  • Remove righthand transmission cover bolt.
  • Remove front axle mounting bracket nut, then position front axle mounting bracket bolt until tip is flush with support bushing. Do not remove bolt.
  • Remove mounting bolts and slide starter forward until it clears transmission.
  • Disconnect oil level sensor electrical connector.
  • Remove start...

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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

Cabin Air Filter Service -> General Motors Corp./Saturn -> 1999-2007 Silverado, Sierra, 2000-07 Denali, Suburban, Tahoe, Yukon, Yukon XL, 2001-07 Escalade & 2002-07 Avalanche
Vehicle: 2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS

Under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter more often.

  • Remove the righthand instrument panel hush panel.
  • Remove the A/C and heater modul...

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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

General Motors Corp./Saturn Trucks -> Change Trans Fluid Indicator ->
Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

This message will appear on the DIC (Driver Information Center) when it is time to change the transmission fluid....

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

Radiator, Replace
Vehicle: 2003 Chevrolet Silverado 2500 HD 8.1 V8 GAS

  • Drain radiator coolant into suitable container.
  • Remove upper and lower radiator hoses.
  • Remove mounting bolts and lower fan shroud.
  • Remove engine vent hose and surge take hose.
  • Disconnect eng...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2003 Chevrolet Silverado 2500 HD 8.1 V8 GAS

  • Rotate tensioner counterclockwise, using suitab...

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COMPONENT LOCATION DIAGRAMS FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

Component location diagrams for most 2003 Chevrolet Silverado 2500 HD cars and light trucks sold in the U.S. from 1990+.

Fuel Sender, Fuel Filler Ground Diagram for 2003 Chevrolet Silverado 2500 HD  8.1 V8 GASFuel Sender, Fuel Filler Ground Diagram for 2003 Chevrolet Silverado 2500 HD 8.1 V8 GAS

Components on diagram:
  • Fuel Sender
  • Ground G-302
  • Frame
  • Steering Wheel   Diagram for 2003 Chevrolet Silverado 2500 HD  8.1 V8 GASSteering Wheel Diagram for 2003 Chevrolet Silverado 2500 HD 8.1 V8 GAS

    Components on diagram:
  • Inflatable Restraint Steering Wheel Module Connector
  • CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

    OEM drawn wiring diagrams for most 2003 Chevrolet Silverado 2500 HD cars and light trucks sold in the U.S.

    2003 Chevrolet Silverado 2500 HD  6.0 V8 GAS Wiring Diagram2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal/Flasher Module
  • 2003 Chevrolet Silverado 2500 HD  6.6 V8 DIESEL Wiring Diagram2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Battery
  • Generator
  • Regulator
  • Voltmeter
  • Stator
  • CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

    OEM TSB listings for most 2003 Chevrolet Silverado 2500 HD cars and light trucks sold in the U.S. from 1985+.

    Document: 6.6L LB7, LLY Duramax Diesel Engine Cylinder Head Gasket Missing Thickness Grade Markings-Inspect Block for Stampings
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

    Auto Systems:
  • Diesel Engines
  • Document: Revised General Motors New Vehicle Tire Warranty Program
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Chevrolet Silverado 2500 HD cars and light trucks sold in the U.S. and Canada from 1970+.

    • Brake caliper mounting bolt torque
    • Brake drum runout, machining, & discard specs
    • Minimum brake lining thickness.
    • Brake rotor runout, parallelism, machining, discard, & finish specs

    A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2003 Chevrolet Silverado 2500 HD cars and light trucks sold in the U.S. and Canada from 1980+.

    • Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap

    COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.

    PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules

    QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2003 Chevrolet Silverado 2500 HD cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.

    • Automatic transmission/transaxles capacities, lubricant recommendations
    • Differential/final drive capacities, lube recommendations, grades, & viscosities
    • Final drive fill & drain plug torques
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
    • Severe service maintenance & interval recommendations
    • Tire sizes, wheel nut/bolt torque, pressures & rim sizes
    • Transfer case capacities, lube recommendations, grades, & viscosities

    TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2003 Chevrolet Silverado 2500 HD cars and light trucks sold in the U.S. and Canada from 1980+

    • Airflow sensor electrical specifications
    • Tensioning specifications for systems with automatic tensioners
    • Barometric pressure sensor specs
    • Battery group number and cranking performance
    • Crankshaft & camshaft position sensor resistance
    • Engine compression pressures
    • Coolant temperature sensor specs
    • Computer advance.
    • Diesel fuel temperature sensor resistance.
    • Distributor advance specifications
    • Ignition pickup coil resistance
    • Exhaust gas recirculation temperature sensor resistance
    • Engine fastener torque values
    • Firing order diagrams
    • Fuel system pressures
    • Generator (alternator) specs
    • Intake air temperature sensor specs
    • Ignition coil specifications
    • Fuel injector resistance
    • Engine idle speeds
    • Knock sensor resistance
    • Manifold absolute pressure sensor specs
    • Mixture control solenoid resistance
    • Voltage regulator specs
    • Spark plug applications & gaps
    • Starter motor electrical specs.
    • Tensioning specifications for systems without automatic tensioners
    • Throttle body temperature sensor resistance
    • Ignition timing in degrees at rpm
    • Transmission oil temperature sensor resistance
    • Throttle position sensor specs
    • Vacuum sensor valve specs

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD SPECIFICATIONS DATA!

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

    Click here to view more details about 2002 Chevrolet Silverado 2500 HD Fender Trim, Front, Passenger Side2002 Chevrolet Silverado 2500 HD Fender Trim, Front, Passenger Side, A high quality, OE replacement fender trim; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $55.56

    Click here to view more details2008 Chevrolet Silverado 2500 HD Oxygen Sensor, Front, Passenger Side, 5.91 in. wire length; Includes butt type connectors and easy-to-follow instructions; Without plug; Designed to fit screw-in type bungs; May not be compatible with flanges; May require minor modifications; Quality tested to ensure efficient fuel combustion; A high quality oxygen sensor; Features stainless steel shell, hex nut, shield, Teflon-covered insulated wires, high-temperature rubber internal and external seals, and threaded tube coated with anti-seize compound; Helps reduce harmful emissions; With 3 years limited CertifiedXL warranty..

    Source: Auto Body Parts Store

    $41.65

    Click here to view more details2012 Chevrolet Colorado Driver And Passenger Side Pair OF Round Stainless Steel Nerf Bars For Extended Cab Models, Driver And Passenger Side Pair OF Round Stainless Steel Nerf Bars For Extended Cab Models; BY Proefx, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $143.50

    Click here to view more details2003 Chevrolet Monte Carlo LS V6, 3.4 L, 207 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,754.00

    Click here to view more details2008 Chevrolet Silverado 2500 HD Used Ignition Switch W/Key, *DO NOT SELL NHTSA RECALL*, Very Good.

    Source: Used Auto Parts Store

    $65.00

    Click here to view more details2001 Chevrolet Silverado 2500 HD Used Ignition Switch W/Key, Without Quadrasteer, Very Good.

    Source: Used Auto Parts Store

    $85.00
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