2008 GMC Sierra 2500 HD REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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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

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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!
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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 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

Anti-Lock Brakes -> Bosch ABS/EBD/TCS/VSES -> Description
Vehicle: 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

The Bosch ABS/EBD/TCS/VSES system consists of the following vehicle performance enhancement systems: Anti-Lock Brake System (ABS); Bi-State Engine Mount (BSM); Electronic Brake Distribution (EBD); Traction Control System (TCS); Variable Effort Steering (VES); Vehicle Stability Enhancement System (VSES). The Electronic Brake Control Module (EBCM) and the Brake Pressure Modulator Valve (BPMV) is serviced separately. The BPMV uses a 4 circuit configuration to control hydraulic pressure to each wheel independently.

When wheel slip is detected during a brake application, the ABS enters an...

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

DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 2008 GMC Sierra 2500 HD SLT 6.0 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 ...

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

Description
Vehicle: 2008 GMC Sierra 2500 HD WT 6.6 V8 DIESEL

The TPMS (Tire Pressure Monitor System) warns the driver when a significant loss, or gain of tire pressure occurs in any of the four tires and allows the driver to display the individual tire pressures and the locations on the DIC (Driver Information Center) display. The system consists of the BCM (Body Control Module), DIC, instrument cluster, RCDLR (Remote Control Door Lock Receiver), RF (Radio Frequency transmitting tire pressure sensor in each wheel and serial data circuit. Each tire pressure sensor has an internal power supply with a service life of 10 years.

When the vehicle is...

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

Alternator, Replace
Vehicle: 2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL

  • Disconnect battery ground cable.
  • Disconnect positive crankcase ventilation hose from air cleaner outlet resonator.
  • Loosen air cleaner outlet resonator clamps at mass air flow intake air temperature sensor and at throttle body.
  • Remove air cleaner outlet resonator.
  • Remove drive belt using suitable tools.
  • Remove engine wiring harness clip from air conditioning compressor and condenser hose bracket.
  • Remove air conditioning compressor and condenser hose bracket bolt.
  • Remove heate...

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MAINTENANCE LAMP RESET PROCEDURES FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

General Motors Corp./Saturn Trucks -> Service Throttle Soon Indicator Lamp ->
Vehicle: 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

A "Service Throttle Soon" indicator lamp is mounted in the lower righthand instrument cluster corner on these models. It lights when the ignition is turned On, but should go out approximately 1-5 seconds after the engine starts.

Traditional throttle cables are no longer used on these models. The PCM receives signals from an electron...

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

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

  • Drain coolant into a suitable container.
  • Remove radiator air upper baffle retainers, then the upper air baffle, Fig. .
  • Remove inlet and outlet hoses from radiator.
  • Lift lower fan shroud upward to disengage from clips, then remove lower fan shroud from vehicle.
  • Remove surge tank hose from radiator
  • Remove and discard radiator quick connect fittings as follows:
    • Pull caps back along pipe, then holding one leg o...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2008 GMC Sierra 2500 HD SLE 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...

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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+.

Park Neutral Position Switch Diagram for 2008 GMC Sierra 2500 HD SLT 6.0 V8 GASPark Neutral Position Switch Diagram for 2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS

Components on diagram:
  • Automatic Transmission
  • Neutral Position Switch
  • Park Position Switch
  • Engine Compartment Components Diagram for 2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESELEngine Compartment Components Diagram for 2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL

    Components on diagram:
  • Exhaust Manifold
  • Ground G102
  • Crankshaft Pulley
  • 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 SLT 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Camshaft Position Sensor
  • Camshaft Position Actuator Solenoid Valve
  • 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
  • Headlamp and Panel Dimmer Switch
  • RH Vanity Mirror Lamp
  • LH Vanity Mirror Lamp
  • Rear Dome Reading Lamp
  • 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 Bumper Cover, Front2006 GMC Sierra 2500 HD Bumper Cover, Front.

    Source: Auto Body Parts Store

    $109.61

    Click here to view more details2006 GMC Sierra 2500 HD Mirror, Driver Side, This OE replacement mirror is primered and made of the highest quality, rust and corrosion resistant materials to withstand all types of weather. Item is with 1-year limited Matheny warranty.</p><p><b>Specifications:</b><ul><li>Chrome cap</li></ul></p>.

    Source: Auto Body Parts Store

    $52.00

    Click here to view more details2015 GMC Pickup Sierra 3500 20" x 8.5" Alloy Wheel Take Off, Alloy Wheel Take Off; 20 X 8.5; 10 Spokes; 8 Lug; 180MM BP; Used; OEM Chrome, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $347.50

    Click here to view more details2002 GMC Sierra 2500 HD V8, 8.1 L, 496 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 Oil Pan, CLASSIC STYLE (CREASED DR SKIN), 5.3L, Very Good.

    Source: Used Auto Parts Store

    $156.00

    Click here to view more details2001 GMC Sierra 2500 HD Used Air Flow Meter/Sensor, 8.1, AUTO, 4X2 gasoline, Very Good.

    Source: Used Auto Parts Store

    $69.00
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