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2008 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 2008 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 2008 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 2008 GMC Sierra 2500 HD AUTOMOBILES

    Drum Brakes -> Tightening Specifications
    Vehicle: 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD BRAKE SERVICE PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    DRIVESHAFT, Replace -> Front -> One-Piece Driveshaft -> Rear -> Two-Piece Driveshaft
    Vehicle: 2008 GMC Sierra 2500 HD SLT 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 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 expos...

    CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    Wiring Diagrams -> Wire Color Code Identification
    Vehicle: 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

    Refer to Figs. through for w...

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD TIRE PRESSURE MONITORING SYSTEM PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    Starter, Replace
    Vehicle: 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

    • Disconnect battery ground cable.
    • Raise and support vehicle.
    • On models equipped with skid plate, remove skid plate mounting bolts and skid plate.
    • On all models, remove front transmission cover bolt.
    • Remove starter motor mounting bolts.
    • Disconnect engine wiring harness electrical connector from oil level sensor.
    • Slide starter forward until it clears transmission, then properly support starter. Avoid cable and wiring damage. DO NOT suspend starter by cables or wires attached to solenoid terminals. Use a rope or mechanics wire to suspend starter.
    • Lower vehicle half way.
    • Remove right front ...

    CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    General Motors Corp./Saturn Trucks -> Change Oil, Change Oil Now Or Change Oil Soon Lamp & Messages -> 2007-09 Sierra & Silverado -> Less Driver Information Center (DIC) -> With Driver Information Center (DIC)
    Vehicle: 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS

    Less Driver Information Center (DIC)

    • Turn ignition On, but do not start engine.
    • Fully depress and release accelerator pedal three times within five seconds.
    • Place the ignition switch in the Off position.
    • If the Change Oil Soon Message comes back On when starting the vehicle, the Engine Oil Life system has not reset. Repeat the procedure to reset the Engine Oil Life system

    With Driver Information Center (DIC)

    • Turn ig...

    CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    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...

    CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS

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

    CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    Component location diagrams for most 2008 GMC Sierra 2500 HD cars and light trucks sold in the U.S. from 1990+.

    Instrument Panel Components Diagram for 2008 GMC Sierra 2500 HD SLE 6.0 V8 GASInstrument Panel Components Diagram for 2008 GMC Sierra 2500 HD SLE 6.0 V8 GAS

    Components on diagram:
  • Upper Left Air Temperature Sensor
  • Upper Right Air Temperature Sensor
  • Passenger Compartment Components Diagram for 2008 GMC Sierra 2500 HD WT 6.0 V8 GASPassenger Compartment Components Diagram for 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS

    Components on diagram:
  • Remote Control Door Lock Receiver
  • CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    OEM drawn wiring diagrams for most 2008 GMC Sierra 2500 HD cars and light trucks sold in the U.S.

    2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL Wiring Diagram2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Inflatable Restraint Steering Wheel Module Coil
  • RH Steering Wheel Control Switch
  • LH Steering Wheel Control Switch
  • Transfer Case Shift Control Switch
  • 2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL Wiring Diagram2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Remote Control Door Lock Receiver
  • Keyless Entry Antenna
  • CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    OEM TSB listings for most 2008 GMC Sierra 2500 HD cars and light trucks sold in the U.S. from 1985+.

    Document: Second Order Prop Shaft Vibration Or Launch Shudder
    Vehicle: 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS

    Symptoms:
  • Vibration
  • Document: Revised General Motors New Vehicle Tire Warranty Program
    Vehicle: 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2008 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 2008 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 2008 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 2008 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 2008 GMC Sierra 2500 HD SPECIFICATIONS DATA!

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

    Click here to view more details about 2006 GMC Sierra 2500 HD Grille Assembly2006 GMC Sierra 2500 HD Grille Assembly, With emblem provision and turn signal holes; A high quality, OE replacement complete grille and shell assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $128.64

    Click here to view more details2010 GMC Sierra 2500 HD Bumper End, Rear, Driver Side, With parking aid sensor holes; Ensures precise and perfect fit for a reliable and efficient performance; Adds unique and distinctive styling that gives your vehicle a custom look; With 2 years limited TrustBuilt warranty..

    Source: Auto Body Parts Store

    $179.57

    Click here to view more details1998 GMC Fullsize C/K Pickup Gas Door Cover, GAS DOOR COVER, 1 PIECE , , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $19.30

    Click here to view more details2005 GMC Sierra 2500 HD V8, 6.0 L, 368 CID Rebuilt Engine, 6.0 V-8 Aluminum Heads, Warranty: 7-Year/70,000 Mile, .

    Source: Rebuilt Engines Store

    $2,099.00

    Click here to view more details2010 GMC Sierra 2500 HD Used Engine Computer, Driver Side, Elec Cont Unit (ECU); (front under battery), 5.3L, Very Good.

    Source: Used Auto Parts Store

    $141.00

    Click here to view more details2001 GMC Sierra 2500 HD Used Air Injection Pump, 5.3, AUTO, 4X2 (4.8L, 5.3L), Very Good.

    Source: Used Auto Parts Store

    $136.00
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