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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!
    DIY REPAIR SAMPLES > CONTINUE EXPLORING >
    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

    Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Domestic Vehicles
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

    Drum Brakes -> Precautions
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

    When working on or around brake assemblies, care must be taken to prevent breathing asbestos dust, as many manufacturers incorporate asbestos fibers in the production of brake linings. During routine service operations, the amount of asbestos dust from brake lining wear is at a low level because of a chemical breakdown during use and a few precautions will minimize exposure.. Do not sand or grind brake linings unless suitable local exhaust ventilation equipment is used to prevent excessiv...

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

    General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Pressure Relief -> Except Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Tracker & Uplander -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
    Vehicle: 2003 Chevrolet Silverado 2500 HD 8.1 V8 GAS

    Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.

    Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.

    After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strategy.

    Engines Less Fuel Pressure ...

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD FUEL FILTER REPLACEMENT PROCEDURES

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

    DRIVESHAFT, Replace -> Front -> Rear
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

    Front

    Before disassembly, observe and accurately reference mark all driveline components relative to the propeller shaft and axles. These items include the propeller shafts, wheel drive shafts, pinion flanges and output shafts

    Assemble all components in the exact relationship to each other as they were prior to removal. Observe all published specifications and torque values, and any measurements obtained prior to disassembly.

    • Raise and support vehicle.
    • Remove transfer case shield, if equipped.
    • If equipped with double clamp style boot, remove clamp at transfer case by prying up ex...

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

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

    Alternator, Replace
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

    • Disconnect battery ground cable.
    • Remove air inlet duct, if required.
    • Disconnect terminal plug and battery lead connections from back of alternator.
    • Remove upper fan shroud mounting bolts and fan shroud.
    • Remove accessory drive belt using suitable 3/8 i...

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    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 8.1 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...

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

    General Motors Corp./Saturn Trucks -> Reduce Engine Power Indicator Lamp ->
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

    The Reduce Engine Power indicator lamp should light for a approximately 3 seconds when the ignition is turned On as a bulb check. If the warning lamp turns On during vehicle operation, a vehicl...

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD MAINTENANCE LAMP RESET PROCEDURES

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

    Coolant Hose, Replace -> Lower -> Upper
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS

    Lower

    • Drain cooling system into a suitable container.
    • Separate mass airflow (MAF)/intake air temperature (IAT) sensor assembly and air inlet tube by loosening hose clamp.
    • Disconnect radiator inlet hose clip from air cleaner outlet duct.
    • Remove air cleaner outlet duct.
    • Reposition radiator outlet hose clamp at radiator.
    • Remove radiator outlet hose from radiator.
    • Reposition hose clamp from water pump.
    • Remove radiator outlet hose from water pump and from vehicle.
    • Reverse procedure to install.

    Upper

    • D...

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Chevrolet Silverado 2500 HD AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

    • Rotate tensioner to release belt tension using a 1/2 inch breaker bar with a 5/8 inch socket placed on tensioner pulley, then remove belt.
    • Route be...

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Silverado 2500 HD SERPENTINE BELT SERVICE PROCEDURES

    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+.

    Knock Sensors Diagram for 2003 Chevrolet Silverado 2500 HD  6.0 V8 GASKnock Sensors Diagram for 2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS

    Components on diagram:
  • Knock Sensor 1
  • Knock Sensor 2
  • Connector C-175 Diagram for 2003 Chevrolet Silverado 2500 HD  6.6 V8 DIESELConnector C-175 Diagram for 2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL

    Components on diagram:
  • Automatic Transmission
  • Connector C-175
  • 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  6.6 V8 DIESEL Wiring Diagram2003 Chevrolet Silverado 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Radio
  • 2003 Chevrolet Silverado 2500 HD  6.0 V8 GAS Wiring Diagram2003 Chevrolet Silverado 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • PTC Thermistor
  • 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 2006 Chevrolet Silverado 2500 HD Tail Light, Driver And Passenger Side2006 Chevrolet Silverado 2500 HD Tail Light, Driver And Passenger Side, With clear lens and chrome housing; FMVSS-108 compliant; DOT and SAE certified; High quality, direct fit OE replacement tail lights..

    Source: Auto Body Parts Store

    $81.68

    Click here to view more details about 2004 Chevrolet Silverado 2500 HD Turn Signal Light, Passenger Side2004 Chevrolet Silverado 2500 HD Turn Signal Light, Passenger Side.

    Source: Auto Body Parts Store

    $23.44

    Click here to view more details about 2002 Chevrolet Camaro Park/signal/side Marker Lamp, Passenger Side2002 Chevrolet Camaro Park/signal/side Marker Lamp, Passenger Side, PARK/SIGNAL/SIDE MARKER LAMP, RH , , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $18.45

    Click here to view more details about 1995 Dodge Caravan L4, 2.5 L, 2507 CC, 153 CID Rebuilt Engine1995 Dodge Caravan L4, 2.5 L, 2507 CC, 153 CID Rebuilt Engine, FWD, non turbo, roller cam, with balance assembly, (supplied with new head casting)., Warranty: 7-Year/70,000 Mile, .

    Source: Rebuilt Engines Store

    $1,558.00

    Click here to view more details2002 Chevrolet Silverado 2500 HD Used Vacuum Pump, CHEV EXPRESS PR 35, 6.5 DIESEL, Very Good.

    Source: Used Auto Parts Store

    $204.00

    Click here to view more details2001 Chevrolet Silverado 2500 HD Used A/C Compressor, Passenger Side Rear, 6.0 Without AC, Very Good.

    Source: Used Auto Parts Store

    $132.00
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