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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!
    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 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+

    Component Replacement & Adjustment -> Sierra & Silverado -> Water Pump, Replace -> 4.3L Engine -> 4.8L, 5.3L & 6.0L Engines -> 6.6L Diesel Engine -> 8.1L Engine
    Vehicle: 2003 GMC Sierra 2500 HD 6.0 V8 GAS

    4.3L Engine

    • Loosen air cleaner outlet duct clamp at Mass Air Flow/intake Air Temperature (MAF/IAT) sensor.
    • Remove Positive Crankcase Ventilation (PCV) hose.
    • Remove adapter nut, engine cover and air cleaner.
    • Remove air inlet duct by pivoting it upward until hinge clip disconnects from lip on throttle body.
    • Drain cooling system into suitable container.
    • Remove throttle body heater and inlet radiator hoses' retainers from fan shroud.
    • Remove retainers, mounting bolts and upper fan shroud.
    • Remove fan hub nut from water pump using fa...

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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: 2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS

    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 Scheduled Maintenance -> 2004-06 C/K, G & R/V Series w/Gasoline Engine -> Heavy Duty Emissions -> Light Duty Emissions -> Normal Service -> Severe Service
    Vehicle: 2006 GMC Sierra 2500 HD SL 6.0 V8 GAS

    Light Duty Emissions

    Normal Service

    Service as required

    Severe Ser...

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    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: 2001 GMC Sierra 2500 HD 6.6 V8 DIESEL

    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: 2007 GMC Sierra 2500 HD WT 6.6 V8 DIESEL

    Refer to Fig. for wirin...

    [[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+.

    Starter, Replace
    Vehicle: 2006 GMC Sierra 2500 HD SLE 8.1 V8 GAS

    • Disconnect battery ground cable.
    • Raise and support vehicle.
    • Disconnect starter battery positive cable and wiring harness.
    • Remove starter motor mounting bolts, washers, shims, starter and heat shield from vehicle.
    • Rever...

    CLICK HERE TO GET FULL ACCESS TO GMC Sierra 2500 HD STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    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 SL 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 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/Service Engine Soon Indicator Lamp -> Electronic Engine Controls Or Electronic Fuel Injection Except Tracker
    Vehicle: 2006 GMC Sierra 2500 HD SLE 6.0 V8 GAS

    The Check Engine/Service Engine Soon Lamp should light when the ignition is turned On. When the engine is started, the lamp should go off. If the lamp remains on for 10 seconds or constantly after the engine is started, the self diagnosis system has detected a problem and has stored a code in the system Electronic Control Module (ECM) or Powertrain Control Module (PCM). After diagnosis and repair, the ECM/PCM memory can be cleared of codes either by using a scan tool (OBD II systems) or by disconnecting the battery ground ca...

    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+

    Radiator, Replace
    Vehicle: 2006 GMC Sierra 2500 HD WT 6.0 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 engine oi...

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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 WT 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 GMC Sierra 2500 HD SERPENTINE BELT SERVICE PROCEDURES

    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+.

    Transfer Case Shift Control Module Diagram for 2002 GMC Sierra 2500 HD  6.0 V8 GASTransfer Case Shift Control Module Diagram for 2002 GMC Sierra 2500 HD 6.0 V8 GAS

    Components on diagram:
  • Transfer Case Shift Control Module
  • Fuse Block
  • Connector C-1
  • Connector C-2
  • Fuse Block Connector
  • Sunroof Components Diagram for 2007 GMC Sierra 2500 HD Classic WT 6.6 V8 DIESELSunroof Components Diagram for 2007 GMC Sierra 2500 HD Classic WT 6.6 V8 DIESEL

    Components on diagram:
  • Sunroof Control Module
  • Sunroof Switch
  • Sunroof Motor
  • Splice S352
  • Connector C353
  • 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.

    2007 GMC Sierra 2500 HD Classic WT 8.1 V8 GAS Wiring Diagram2007 GMC Sierra 2500 HD Classic WT 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Cigar Lighter
  • Front Auxiliary Power Outlet
  • 2008 GMC Sierra 2500 HD SLE 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD SLE 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Transmission Control Module
  • Starter Relay
  • Ignition Switch
  • Body Control Module
  • Starter Motor
  • 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: RELEASE OF DEXRON VI AUTOMATIC TRANSMISSION FLUID (ATF) - REVISED
    Vehicle: 2005 GMC Sierra 2500 HD 6.0 V8 CNG

    Auto Systems:
  • Chemicals, Antifreeze, Additives
  • Automatic Trans, Coolers, Torque Converter
  • Document: CURRENT OR INTERMITTENT DTC P0741 TCC STUCK OFF
    Vehicle: 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

    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 details about 2010 GMC Sierra 2500 HD Vent Visor, Front Or Rear2010 GMC Sierra 2500 HD Vent Visor, Front Or Rear, Crafted in Germany from the finest 3 mm tinted acrylic material available; Optically transparent; Precision-machined to perfectly fit your vehicle; Features sleek, low profile, and aerodynamic design to help reduce wind noise and allow interior heat to escape; Provides fresh air enjoyment with an original equipment look; Helps keep side windows dry in the rain; Installs inside the window channel; Easy installation with no exterior tape needed..

    Source: Auto Body Parts Store

    $97.71

    Click here to view more details2009 GMC Sierra 2500 HD Oxygen Sensor, Driver Side, 6.69 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

    $48.00

    Click here to view more details2002 GMC Pickup Fullsize C/K 16" x 6.5" Steel Wheel Take-Off, Steel Wheel; 16 X 6.5; 4 Slots; 8 Lug; 6.5 Inch BP; Ident TDF; Black Full Face, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $54.45

    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 details2007 GMC Sierra 2500 HD Used Brake Master Cylinder, 6.0, AUTO, 4X2 Without trailer brake cont, Very Good.

    Source: Used Auto Parts Store

    $88.00

    Click here to view more details2003 GMC Sierra 2500 HD Used A/C Compressor, 4.3, AUTO, 4X2, Very Good.

    Source: Used Auto Parts Store

    $103.00
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