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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+

    General Service Domestic Vehicles -> 2003-04 -> Oil Charge -> Alero & Malibu -> Bonneville, LeSabre & Park Avenue -> Caravan, Town & Country & Voyager -> Catera -> Cavalier & Sunfire -> Century -> Cherokee, Dakota, Full Size Pickups, Grand Cherokee & Wrangler -> Corvette -> DaimlerChrysler Corp. -> DeVille & Seville -> Eldorado -> Except Lincoln LS -> Except Tracker -> Ford Motor Company -> Full Size & Ram Vans -> General Motors Corp. -> Geo Tracker -> Grand Prix, Impala, Intrigue, Lumina, Monte Carlo & Regal -> L-Series -> Liberty -> Light Trucks & Vans -> Lincoln LS -> Metro -> Passenger Cars -> Prizm -> PT Cruiser -> S-Series -> Saturn -> VUE
    Vehicle: 2003 GMC Sierra 2500 HD 6.0 V8 GAS

    DaimlerChrysler Corp.

    Passenger Cars

    Before installing replacement compressor, drain oil from replacement and failed compressors (drain oil from suction port). Add same amount of oil to replacement compressor as drained from failed compressor.

    Remove defective components. Add the proper amount of oil to each replacement component. Most recovery/recycling equipment will measure the amount of oil being removed. This is the amount of oil to be added back to the system, follow manufactures instructions provided with the recovery/recycling station.

    When other ai...

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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+.

    Hydraulic Brake Systems -> Component Service -> Assemble -> Bendix Master Cylinder -> Delco Master Cylinder -> Disassemble -> Wheel Cylinder
    Vehicle: 2007 GMC Sierra 2500 HD Classic SLT 8.1 V8 GAS

    Delco Master Cylinder

    When performing the following procedures, refer to Fig. noting that the composite reservoir may vary in design.

    Disassemble
    • Remove master cylinder from vehicle.
    • Remove reservoir cover and diaphragm. Discard old brake fluid in reservoir.
    • Inspect cover and diaphragm. Replace if cut, cracked or deformed.
    • Remove fluid level switch and proportioning valve assembly, if equipped.
    • Depress primary piston and remove lock ring.
    • Plug primary fluid outlet (outlet nearest to cowl when master cylinder is installed), then apply compressed air into secondary fluid outlet to remo...

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    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 -> Component Locations -> 1999-06 Silverado & Sierra
    Vehicle: 2006 GMC Sierra 2500 HD SL 6.0 V8 GAS

    Refer ...

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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, Replace -> Front -> Rear
    Vehicle: 2002 GMC Sierra 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...

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    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+.

    Relearn Procedures
    Vehicle: 2006 GMC Sierra 2500 HD WT 8.1 V8 GAS

    • Apply the Parking brake, then place the ignition switch in the On position.
    • Cycle the headlamp switch from Off to Parking Lamp position 4 times within 4 seconds.
    • The horn should chirp twice and the low tire pressure warning indicator should begin to flash indicating the system is in the learn mode.
    • If GM tool No. J-46079 or equivalent is available, starting with the left front tire, hold the antenna of the tool No. J-46079 near the valve stem on the wheel, then press the activate button and wait for the horn to chirp.
    • If the tool is not available, starting with the left front tir...

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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 SL 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...

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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: 2001 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 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 -> Air Cleaner Restriction Indicator ->
    Vehicle: 2006 GMC Sierra 2500 HD SL 6.6 V8 DIESEL

    An air cleaner restriction indicator, Fig. , is located in the intake duct between the MAF sensor and the air cleaner assembly.

    If the window shows green, no service is required at this time. However, if...

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    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: 2007 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

    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: 2009 GMC Sierra 2500 HD SLT 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 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+.

    Traction Control Switch Diagram for 2006 GMC Sierra 2500 HD SLE 8.1 V8 GASTraction Control Switch Diagram for 2006 GMC Sierra 2500 HD SLE 8.1 V8 GAS

    Components on diagram:
  • Traction Control Switch
  • Instrument Panel Outer Air Outlet Housing
  • 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.

    2006 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL Wiring Diagram2006 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Cigar Lighter
  • Auxiliary Power Outlet Console
  • 2006 GMC Sierra 2500 HD SL 8.1 V8 GAS Wiring Diagram2006 GMC Sierra 2500 HD SL 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Vehicle Speed Sensor
  • Pressure Control Solenoid Valve
  • Powertrain Control Module
  • Automatic Transmission
  • Automatic Transmission Fluid Temperature Sensor
  • 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: MUFFLER BUZZ DURING VEHICLE OPERATION OR EXHAUST POPPING/SNAPPING NOISE WHEN VEHICLE IS HOT, AT IDLE, OR IMMEDIATELY AFTER VEHICLE IS SHUT OFF - REVISED
    Vehicle: 2007 GMC Sierra 2500 HD Classic SLE 6.6 V8 DIESEL

    Symptoms:
  • Noise
  • Auto Systems:
  • Exhaust System
  • Document: DIAGNOSTIC INFORMATION FOR MIL ILLUMINATED WITH DTC P1825 OR P1915 FOUND CURRENT OR AS HISTORY CODE IN TCM, NO PRNDL DISPLAY, POTENTIAL NO ENGINE CRANK
    Vehicle: 2007 GMC Sierra 2500 HD Classic SL 6.0 V8 GAS

    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 details about 2005 GMC Sierra 2500 HD Headlight, Passenger Side2005 GMC Sierra 2500 HD Headlight, Passenger Side, Bulbs included; Composite type; DOT and SAE approved; A high quality, OE replacement headlight assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $103.11

    Click here to view more details about 2008 GMC Sierra 2500 HD Third Brake Light2008 GMC Sierra 2500 HD Third Brake Light, With cargo light and clear lens; Without red caps; FMVSS-108, DOT and SAE approved; A high quality, direct fit OE replacement third brake light..

    Source: Auto Body Parts Store

    $298.35

    Click here to view more details2004 GMC Sonoma Pickup Center Cap, Aftermarket Center Caps; Chrome Finish; ABS; Set OF 4, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $184.50

    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 details2008 GMC Sierra 2500 HD Used Oil Pan, 6.6L, LOWER, Very Good.

    Source: Used Auto Parts Store

    $113.00

    Click here to view more details2002 GMC Sierra 2500 HD Used Radio, AM-MONO-FM-STEREO UM7, Very Good.

    Source: Used Auto Parts Store

    $66.00
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