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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 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 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:

    A/C & HEATER SERVICE PROCEDURES FOR GMC Sierra 2500 HD AUTOMOBILES

    Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported GMC Sierra 2500 HD cars and light trucks from 1990+

    Air Bag System Precautions -> General Motors Corp. -> Arming -> Light Trucks & Vans -> Passenger Cars
    Vehicle: 2004 GMC Sierra 2500 HD 8.1 V8 GAS

    Passenger Cars

    Reverse disarming procedures to arm the Supplemental Restraint System, noting the following:

    • Ensure all disconnected SRS electrical connectors are securely connected and routed.
    • Install all removed fuses in proper locations.
    • From a safe position at sides of or below air bag module, Turn ignition switch to ON position and observe Air Bag or SRS warning lamp.
    • On all models except Prizm and 1990 Corvette, warning lamp should flash seven to nine times, then go off.
    • On Prizm models, warning lamp should light for six seconds,...

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    BRAKE SERVICE PROCEDURES FOR GMC Sierra 2500 HD AUTOMOBILES

    Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC Sierra 2500 HD cars and light trucks from 1990+.

    Power Brake Units -> Delco Brake Booster -> General Service
    Vehicle: 2002 GMC Sierra 2500 HD 6.6 V8 DIESEL

    Certain general service procedures apply, regardless of whether the brakes are vacuum or hydraulically assisted. Only top quality, clean brake fluid should be used. More seals and valves are used with power brake systems than with ordinary brakes, so an inferior brake fluid will do much more damage. For the same reason, ensure all dirt is kept out of the system. Additionally, on models with hydraulic assist brakes, care must be taken not to mix the fluids of the booster hydraulic system and brake hydraulic system as the fluids are not compatible.

    If the power unit fails, the brak...

    CLICK HERE TO GET FULL ACCESS TO GMC Sierra 2500 HD BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR GMC Sierra 2500 HD AUTOMOBILES

    Fuel filter replacement procedures with corresponding images for most domestic and imported GMC Sierra 2500 HD cars and light trucks sold in the U.S. for 1980+.

    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: 2006 GMC Sierra 2500 HD WT 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...

    CLICK HERE TO GET FULL ACCESS TO GMC Sierra 2500 HD FUEL FILTER REPLACEMENT PROCEDURES

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

    Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC Sierra 2500 HD cars and light trucks from 1990+.

    DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
    Vehicle: 2007 GMC Sierra 2500 HD Classic WT 8.1 V8 GAS

    Never clamp propeller shaft tubing in a vise. Clamping could dent or deform the tube causing an imbalance or unsafe condition. Always clamp on one of the yokes and support the shaft horizontally. Avoid damaging the slip yoke sealing surface. Nicks may damage the bushing or cut the lip seal.

    Disassemble

    • Support propeller shaft in a line horizontal with table of a press.
    • Mark propeller shaft in order to show which end connects to transmission and which end goes to rear axle.
    • On models equipped with external snap ring retainers, proceed as follows:
      • Disassemble snap rings by ...

    CLICK HERE TO GET FULL ACCESS TO GMC Sierra 2500 HD DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR GMC Sierra 2500 HD AUTOMOBILES

    Description, component locations, reset procedures, relearn procedures, diagnosis and testing, wiring diagrams, component replacement, and identification of vehicles equipped and not equipped with tire pressure monitoring system for most domestic and imported GMC Sierra 2500 HD cars and light trucks sold in the U.S. from mid 1990's+.

    Wiring Diagrams -> Wire Color Code Identification
    Vehicle: 2009 GMC Sierra 2500 HD SLT 6.0 V8 GAS

    Refer to Figs. through for w...

    [[table data]]

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    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC Sierra 2500 HD AUTOMOBILES

    Includes starter and alternator replacement procedures for domestic and imported GMC Sierra 2500 HD cars and light trucks from 1990+.

    Alternator, Replace
    Vehicle: 2006 GMC Sierra 2500 HD WT 8.1 V8 GAS

    • 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 GMC Sierra 2500 HD AUTOMOBILES

    Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported GMC Sierra 2500 HD cars and light trucks sold in the U.S. as equipped to the current model year.

    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: 2006 GMC Sierra 2500 HD SLT 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 GMC Sierra 2500 HD AUTOMOBILES

    Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC Sierra 2500 HD cars and light trucks sold in the U.S. from 1990+.

    General Motors Corp./Saturn Trucks -> Check Engine Oil Level ->
    Vehicle: 2006 GMC Sierra 2500 HD WT 8.1 V8 GAS

    This system is used to indicate a low engine oil level condition. The lamp should light during engine starting. If oil level is sufficient, the lamp should go off when engine is operating. If oil level is low the...

    CLICK HERE TO GET FULL ACCESS TO GMC Sierra 2500 HD MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC Sierra 2500 HD AUTOMOBILES

    Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC Sierra 2500 HD cars and light trucks from 1990+

    Heater Hose, Replace -> Inlet -> Outlet
    Vehicle: 2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS

    Inlet

    • Drain cooling system into a suitable container.
    • Remove air intake tube.
    • Remove heater and surge tank hose from mounting clip.
    • Release clamp on heater inlet hose at heater core.
    • Remove hose from heater core.
    • Release clamp on heater inlet hose at water pump.
    • Remove hose from water pump.
    • Remove hose from vehicle.
    • Reverse procedure to in...

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    SERPENTINE BELT SERVICE PROCEDURES FOR GMC Sierra 2500 HD AUTOMOBILES

    Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC Sierra 2500 HD cars and light trucks sold in the U.S. from 1990+.

    Serpentine Drive Belt, Replace
    Vehicle: 2007 GMC Sierra 2500 HD Classic WT 8.1 V8 GAS

    • Rotate tensioner counterclockwise using suitabl...

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    COMPONENT LOCATION DIAGRAMS FOR GMC Sierra 2500 HD AUTOMOBILES

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

    Engine Compartment Diagram for 2006 GMC Sierra 2500 HD SLE 6.0 V8 GASEngine Compartment Diagram for 2006 GMC Sierra 2500 HD SLE 6.0 V8 GAS

    Components on diagram:
  • Transmission Control Module
  • Transmission Control Module Connector
  • Radiator Fan Shroud
  • Transmission Components Diagram for 2008 GMC Sierra 2500 HD WT 6.6 V8 DIESELTransmission Components Diagram for 2008 GMC Sierra 2500 HD WT 6.6 V8 DIESEL

    Components on diagram:
  • Transmission Control Module
  • Transmission Control Module Connector
  • Radiator Fan Shroud
  • CLICK HERE TO GET FULL ACCESS TO GMC Sierra 2500 HD PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR GMC Sierra 2500 HD AUTOMOBILES

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

    2005 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2005 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Park Lamps Supply Voltage
  • Trailer Left Rear Turn/Stop Lamp Supply Voltage
  • Trailer Right Rear Turn/Stop Lamp Supply Voltage
  • 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD WT 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Stoplamp Switch
  • Automatic Transmission Shift Lock Control Solenoid
  • Underhood Fuse Block
  • Run Crank Relay
  • CLICK HERE TO GET FULL ACCESS TO GMC Sierra 2500 HD WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR GMC Sierra 2500 HD AUTOMOBILES

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

    Document: DEX-COOL COOLANT - NEW LEAK DETECTION DYE J 46366 - REPLACES J 29545-6 - REVISED
    Vehicle: 2004 GMC Sierra 2500 HD 6.0 V8 CNG

    Auto Systems:
  • Chemicals, Antifreeze, Additives
  • Cooling, Water Pump, Drive Belts, Pulleys
  • Document: TRANSMISSION OIL COOLER LINE LEAK
    Vehicle: 2009 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

    Symptoms:
  • Leaks
  • Auto Systems:
  • Automatic Trans, Coolers, Torque Converter
  • CLICK HERE TO GET FULL ACCESS TO GMC Sierra 2500 HD TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR GMC Sierra 2500 HD AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 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 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 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 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 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 Splash Shield, Front, Driver Side, A high quality, OE replacement splash shield; With 2 years limited TrustBuilt warranty..

    Source: Auto Body Parts Store

    $29.60

    Click here to view more details about 2010 GMC Sierra 2500 HD Mirror, Driver And Passenger Side2010 GMC Sierra 2500 HD Mirror, Driver And Passenger Side, Includes all necessary mounting hardware and instructions for easy installation; Made from tough ABS plastic and provides distinctive aerodynamic styling; The passenger side mirror comes with convex glass for greater vision; Paintable to match the vehicle's color; No cutting and splicing required; Please use part number S8395012110 when purchasing replacement mirror glass for this mirror set; With Street Scene's limited 3-year warranty..

    Source: Auto Body Parts Store

    $138.56

    Click here to view more details about 2012 GMC Canyon Full Door Door Mirror Covers2012 GMC Canyon Full Door Door Mirror Covers, Full Door Mirror Covers; 2 Piece Set, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $33.50

    Click here to view more details2004 GMC Sierra 2500 HD V8, 8.1 L, 495 CID Rebuilt Engine, Roller Vortec, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $3,265.00

    Click here to view more details2005 GMC Sierra 2500 HD Used Wiper Motor Front, Very Good.

    Source: Used Auto Parts Store

    $86.00

    Click here to view more details2001 GMC Sierra 2500 HD Used AM-FM-Cassette, AM-mono-FM-stereo-cass, Very Good.

    Source: Used Auto Parts Store

    $62.00
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