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2005 GMC Sierra 2500 HD CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT GMC 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 2005 GMC Sierra 2500 HD 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 GMC Sierra 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 GMC mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 2005 GMC Sierra 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:

BRAKE SERVICE PROCEDURES FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

Power Brake Units -> Delco Brake Booster -> Description -> Operation -> Single Diaphragm Type -> Tandem (Dual) Diaphragm Type
Vehicle: 2005 GMC Sierra 2500 HD 8.1 V8 GAS

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...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Gasoline Engines Except Equinox, Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Uplander & Vue (2004-06) & 2004-06 Envoy, Rainier & TrailBlazer -> Returnless Fuel System
Vehicle: 2005 GMC Sierra 2500 HD 6.0 V8 GAS

Returnless Fuel System

On models equipped with fuel injected engines, relieve fuel system pressure as outlined under "Fuel System Pressure Relief."

On models equipped with metal collar quick disconnect connectors, GM tool No. J37088-A, or equivalent, will be required to disconnect the connector. Pri...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 2005 GMC Sierra 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 2005 GMC Sierra 2500 HD AUTOMOBILES

Alternator, Replace
Vehicle: 2005 GMC Sierra 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...

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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2005 GMC Sierra 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: 2005 GMC Sierra 2500 HD 6.6 V8 DIESEL

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 2005 GMC Sierra 2500 HD AUTOMOBILES

General Motors Corp./Saturn Trucks -> Check Fuel Cap Lamp ->
Vehicle: 2005 GMC Sierra 2500 HD 6.6 V8 DIESEL

The Check Fuel Cap Lamp will illuminate momentarily when the ignition switch is placed in the On position as a bulb check. I...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2005 GMC Sierra 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...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2005 GMC Sierra 2500 HD 6.0 V8 GAS

  • Rotate tensioner clockwise to release belt tension using suitable wrench, then remove belt.
  • Route belt over pulleys excep...

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COMPONENT LOCATION DIAGRAMS FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

Component location diagrams for most 2005 GMC Sierra 2500 HD cars and light trucks sold in the U.S. from 1990+.

Camshaft Sensor Diagram for 2005 GMC Sierra 2500 HD  6.6 V8 DIESELCamshaft Sensor Diagram for 2005 GMC Sierra 2500 HD 6.6 V8 DIESEL

Components on diagram:
  • Camshaft Sensor
  • OnStar® Button Assembly Diagram for 2005 GMC Sierra 2500 HD  6.6 V8 DIESELOnStar® Button Assembly Diagram for 2005 GMC Sierra 2500 HD 6.6 V8 DIESEL

    Components on diagram:
  • OnStar Button Assembly
  • OnStar Button Assembly Connector
  • CLICK HERE TO GET FULL ACCESS TO 2005 GMC Sierra 2500 HD PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

    OEM drawn wiring diagrams for most 2005 GMC Sierra 2500 HD cars and light trucks sold in the U.S.

    2005 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2005 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Lock Relay
  • Unlock Relay
  • Body Control Module
  • Driver Unlock Relay
  • 2005 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2005 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Door Latch Assembly - RR
  • Door Latch Assembly - Driver
  • Door Latch Assembly - Passenger
  • Door Latch Assembly - LR
  • CLICK HERE TO GET FULL ACCESS TO 2005 GMC Sierra 2500 HD WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

    OEM TSB listings for most 2005 GMC Sierra 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: 2005 GMC Sierra 2500 HD 6.6 V8 DIESEL

    Auto Systems:
  • Diesel Engines
  • Document: Revised General Motors New Vehicle Tire Warranty Program
    Vehicle: 2005 GMC Sierra 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 2005 GMC Sierra 2500 HD TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2005 GMC Sierra 2500 HD AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2005 GMC Sierra 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 2005 GMC Sierra 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 2005 GMC Sierra 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 2005 GMC Sierra 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 2005 GMC Sierra 2500 HD SPECIFICATIONS DATA!

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

    Click here to view more details2010 GMC Sierra 2500 HD Headlight, Passenger Side, Bulbs included; Composite and combination type; DOT and SAE approved; A high quality, direct fit OE replacement headlight assembly; With 2 years limited TrustBuilt warranty..

    Source: Auto Body Parts Store

    $207.93

    Click here to view more details about 2002 GMC Sierra 2500 HD Bumper, Rear2002 GMC Sierra 2500 HD Bumper, Rear, With provisions for step pad and trailer hitch; A high quality, direct fit OE replacement bumper face bar..

    Source: Auto Body Parts Store

    $129.11

    Click here to view more details2002 GMC Pickup Fullsize C/K Driver Side Front Lower Side Marker Light Lens And Housing, Driver Side Front Lower Side Marker Light Lens And Housing; With Dual Or Composite Head Lights, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $6.50

    Click here to view more details2002 GMC Sierra 2500 HD V8, 6 L, 364 CID Rebuilt Engine, 6.0 V-8 Aluminum Heads, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $2,099.00

    Click here to view more details2010 GMC Sierra 2500 HD Used Steering Gear, 6.0, AUTO, 4X2, PS Power Steering; exc. Chassis Cab; Extended Cab, Very Good.

    Source: Used Auto Parts Store

    $167.00

    Click here to view more details2003 GMC Sierra 2500 HD Used Parking Lamp, Passenger Side, FOG/DRIVING; (BUMPER MOUNTED), R., Very Good.

    Source: Used Auto Parts Store

    $86.00
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