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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+

Manual Air Conditioning & Heater System Diagnosis & Testing -> Light Duty Trucks & Vans -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable
Vehicle: 2002 GMC Sierra 2500 HD 6.6 V8 DIESEL

Air Bag System Disarming & Arming

Refer to and for air bag system disarming and arming proced...

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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+.

Disc Brakes -> Delco Dual Piston Sliding Caliper -> Precautions -> Brake Disc Service -> Brake Lines & Linings -> Brake Roughness -> General
Vehicle: 2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL

Brake Lines & Linings

Remove one of the front wheels and inspect the brake disc, caliper and linings.

Do not allow any oil or grease on the linings. It is recommended that linings be replaced in sets when worn or damaged.

If the caliper is cracked or fluid leakage through the casting is evident, it must be replaced as a unit.

Brake Roughness

The most common cause of brake chatter on disc brakes is a variation in thickness of the disc. If roughness or vibration is encountered during highway operation or if pedal pumping is experienced at low speeds, the disc may have excessive thickness v...

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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 -> 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: 2001 GMC Sierra 2500 HD 8.1 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 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+.

CV AXLE SHAFT, Replace
Vehicle: 2006 GMC Sierra 2500 HD WT 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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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+.

Reset Procedures
Vehicle: 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

The Low Tire Pressure warning lamp and/or the DIC (Driver Information Center) Low Tire Pressure message can be cl...

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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: 2004 GMC Sierra 2500 HD 6.6 V8 DIESEL

  • Disconnect battery ground cable.
  • Raise and support vehicle, then remove righthand front tire and wheel assembly.
  • Remove righthand front fender wheelhouse inner panel.
  • Remove starter motor battery positive cable, then solenoid wires.
  • Remove star...

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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: 2004 GMC Sierra 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...

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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 -> Tire Pressure Monitoring System (TPMS) Warning Indicator -> 2006 Sierra -> Relearn -> Reset
Vehicle: 2006 GMC Sierra 2500 HD SLE 8.1 V8 GAS

Reset

When the TPMS detects a significant loss of tire pressure, the CHECK TIRE PRESSURE message is displayed on the DIC and the low tire pressure indicator is displayed on the IPC. Adjusting tire to recommended pressure will clear the tire message.

Relearn

  • 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 ...

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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+

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 GMC Sierra 2500 HD 8.1 V8 GAS

Lower

  • Drain cooling system into a suitable container.
  • Reposition radiator outlet hose clamp at radiator.
  • Remove heater core outlet hose from heater core.
  • Remove surge tank hose from surge tank.
  • Remove radiator outlet hose from radiator.
  • Reposition hose clamp from water pump.
  • Remove radiator outlet hose fr...

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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 SLT 6.6 V8 DIESEL

  • Remove upper radiator fan shroud.
  • Rotate tensioner counterclockwise to release tension using a 1/2 inch breaker bar inserted into tensioner opening , then remove belt.
  • Slowly release tension on belt tensioner.
  • Inspect drive belt for excessive cracking or any visible damage and r...

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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+.

Door Diagram for 2008 GMC Sierra 2500 HD WT 6.0 V8 GASDoor Diagram for 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS

Components on diagram:
  • J603
  • J604
  • X600
  • X601
  • Right I/P Junction Block
  • Rear of Vehicle Diagram for 2007 GMC Sierra 2500 HD SLT 6.0 V8 GASRear of Vehicle Diagram for 2007 GMC Sierra 2500 HD SLT 6.0 V8 GAS

    Components on diagram:
  • License Lamp
  • Rear Object Sensor
  • Lower Tail Lamp
  • Rear Backup Lamp
  • Tailgate Marker Lamp
  • 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 SLE 8.1 V8 GAS Wiring Diagram2007 GMC Sierra 2500 HD Classic SLE 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Instrument Panel Cluster
  • Throttle Actuator Control Module
  • Powertrain Control Module
  • Cruise Control Indicator
  • Turn Signal/Multifunction Switch
  • 2008 GMC Sierra 2500 HD WT 6.6 V8 DIESEL Wiring Diagram2008 GMC Sierra 2500 HD WT 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Passenger Seat Adjuster Switch
  • Passenger Seat Rear Vertical Motor
  • Passenger Seat Front Vertical Motor
  • Passenger Seat Horizontal Motor
  • Passenger seat Adjuster Motor Assembly
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    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: INFORMATION ON NAVIGATION RADIO TUNER AND VOLUME KNOBS NOW AVAILABLE FOR SERVICE REPLACEMENTS - REVISED
    Vehicle: 2007 GMC Sierra 2500 HD Classic WT 8.1 V8 GAS

    Auto Systems:
  • Entertainment: Stereo, Radio, Cassettes
  • Document: INFORMATION ON REAR SEAT HEADPHONE FOAM EAR PAD REPLACEMENT IF WORN OR DAMAGED - REVISED
    Vehicle: 2005 GMC Sierra 2500 HD 6.6 V8 DIESEL

    Auto Systems:
  • Entertainment: Stereo, Radio, Cassettes
  • 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 2007 GMC Sierra 2500 HD Antenna2007 GMC Sierra 2500 HD Antenna, 1-section mast; 470 mm extension; Stick-on; A high quality universal imitation antenna; May require modification or other adjustment to your vehicle upon installation..

    Source: Auto Body Parts Store

    $5.01

    Click here to view more details2006 GMC Sierra 2500 HD Wiper Blade, Front, Driver Or Passenger Side, Rear, 22 in. length, Includes universal plastic adapters and easy to follow installation instructions; This new generation flat blade provides improved wiping capabilities in rain and freezing weather, long lasting durability, an easy to service design using a rubber insert that requires no special tools or high cost items to replace, and a clean appearance from inside the vehicle with the wiper profile neatly conforming to the base of the windshield; With 1-year limited Matheny warranty..

    Source: Auto Body Parts Store

    $7.50

    Click here to view more details2014 GMC Yukon XL Driver And Passenger Side Pair OF Round Stainless Steel Nerf Bars For 1500 Half-TON Model, Driver And Passenger Side Pair OF Round Stainless Steel Nerf Bars For 1500 Half-TON Model; BY Proefx, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $143.50

    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 details2001 GMC Sierra 2500 HD Used Parking Lamp, Driver Side, L, Parklamp/Turn Signal; (below headlamps), L., Very Good.

    Source: Used Auto Parts Store

    $62.00

    Click here to view more details2001 GMC Sierra 2500 HD Used Ignition Switch W/Key, Very Good.

    Source: Used Auto Parts Store

    $85.00
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