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

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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+

Component Replacement & Adjustment -> Sierra & Silverado -> Accumulator, Replace
Vehicle: 2003 GMC Sierra 2500 HD 6.6 V8 DIESEL

  • Recover refrigerant as outlined in .
  • Remove nut from evaporator tube from evaporator.
  • Remove evaporator tube nut from accumulator.
  • Disconnect low pressure switch electrical connector.
  • Remove nut and compressor hose from accumulator.
  • Remove evaporator fitting nut.
  • Remove mounting nut from bracket stud...

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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+.

Drum Brakes -> Inspection -> Adjuster Mechanism -> Backing Plate -> Brake Drums -> Brake Linings & Springs -> General System -> Parking Brake Cable
Vehicle: 2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS

General System

  • Inspect components for damage or unusual wear. Replace as required.
  • Inspect backing plate mounting bolts and ensure they are tight.
  • Inspect wheel cylinders. Excessive fluid indicates cup leakage and need for wheel cylinder replacement. Slight amount of fluid is always present and is considered normal, acting as lubricant for cylinder pistons.
  • Inspect adjuster screw operation. If satisfactory, lightly lubricate adjusting screw and washer with suitable brake lube. If operation is unsatisfactory, replace.
  • Clean rust and dirt from shoe contact surfaces on backing plate using fi...

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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 -> 6.6L Diesel Engine
Vehicle: 2006 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL

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. Prior to reconnecting the connector, apply a few drops of clean motor oil to the male pipe ends.

On models equipped with plastic collar quick disconnect connectors, squeeze the connector plastic retainer release tabs to release the connector. Prior to reconnecting the connector, apply a few drops of clean motor...

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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: 2007 GMC Sierra 2500 HD Classic SLE 8.1 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 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+.

Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Aids -> Diagnostic Check -> Diagnostic Tests -> Intermittent & Poor Connections -> Intermittents -> Poor Connections -> Test Procedures
Vehicle: 2006 GMC Sierra 2500 HD WT 6.6 V8 DIESEL

Accessing Diagnostic Trouble Codes

Connect a suitably programmed scan tool to DLC (Data Link Connector) and follow manufacturer's instructions.

Diagnostic Tests

Test Procedures

Refer to Figs. through for diagnostic test procedures.

Diagnostic Check
  • Check for aftermarket devices which could affect the operation of the TPMS to verify that none are installed.
  • Check the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
  • Ensure that the scan tool selected front and rear tire pressure parameters are correct compared to the tire...

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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+.

Alternator, Replace
Vehicle: 2008 GMC Sierra 2500 HD SLE 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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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: 2007 GMC Sierra 2500 HD WT 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 -> 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: 2009 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

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...

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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: 2008 GMC Sierra 2500 HD WT 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: 2006 GMC Sierra 2500 HD SLE 8.1 V8 GAS

  • Rotate tensioner counterclockwise, using suitab...

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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 Latch Assembly, Passenger Diagram for 2003 GMC Sierra 2500 HD  8.1 V8 GASDoor Latch Assembly, Passenger Diagram for 2003 GMC Sierra 2500 HD 8.1 V8 GAS

Components on diagram:
  • Door
  • Door Latch Assembly
  • Door Harness
  • Door Jamb Switch Connector
  • Door Handle Switch 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
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    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 SL 6.6 V8 DIESEL Wiring Diagram2006 GMC Sierra 2500 HD SL 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Door Lock Relay
  • Door Unlock Relay
  • Driver Door Unlock Relay
  • Door Lock Switch Driver
  • 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
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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: AVAILABILITY OF REPLACEMENT PARTS FOR WIDE LOAD OUTSIDE REARVIEW MIRRORS - REVISED
    Vehicle: 2003 GMC Sierra 2500 HD 6.0 V8 GAS

    Auto Systems:
  • Instruments, Dash Cluster, Warning Lights, Mirrors
  • Document: NAVIGATION RADIO CLOCK AND/OR CLOCK TAB DO NOT APPEAR OR DISAPPEARS INTERMITTENTLY
    Vehicle: 2007 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

    Symptoms:
  • Erratic Operation
  • Insufficient Performance
  • Auto Systems:
  • Aux Equip, Phone, Jacks, Trailer Hitches, Towing
  • Entertainment: Stereo, Radio, Cassettes
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    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!

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