GMC REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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GMC 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 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 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 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 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 cars and light trucks from 1990+

A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Chevrolet Astro & GMC Safari
Vehicle: 1993 GMC Safari XT 4.3 V6 GAS

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BRAKE SERVICE PROCEDURES FOR GMC AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported GMC cars and light trucks from 1990+.

Power Brake Units -> Delco Brake Booster -> Power Brake Unit Service
Vehicle: 2000 GMC C3500 Pickup 6.5 V8 DIESEL

The power brake unit is n...

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FUEL FILTER REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES

Fuel filter replacement procedures with corresponding images for most domestic and imported GMC cars and light trucks sold in the U.S. for 1980+.

General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Pressure Relief -> Except Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Tracker & Uplander -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
Vehicle: 1994 GMC C1500 Suburban 5.7 V8 GAS

Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.

Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.

After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strategy.

Engines Less Fuel Pressure ...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES

Includes CV axle, universal joint, and driveline replacement, for domestic and imported GMC cars and light trucks from 1990+.

DRIVESHAFT, Replace -> Front -> Install -> Rear -> Remove
Vehicle: 2009 GMC Yukon XL 1500 SLT 5.3 V8 FLEX

Front

Remove

Before disassembly, observe and accurately reference mark all driveline components relative to the propeller shaft and axles. These items include the following components:

  • Propeller shafts
  • Wheel drive shafts
  • Pinion flanges
  • 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 ca...

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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR GMC 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 cars and light trucks sold in the U.S. from mid 1990's+.

Reset Procedures
Vehicle: 2006 GMC Sierra 3500 WT 6.6 V8 DIESEL

When the TPMS detects a significant loss of tire pressure, the CHECK TIRE PRESSURE message is displayed on the DI...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES

Includes starter and alternator replacement procedures for domestic and imported GMC cars and light trucks from 1990+.

Alternator, Replace
Vehicle: 2005 GMC Savana 3500 4.8 V8 GAS

  • Disconnect battery ground cable.
  • Remove coolant reservoir and air cleaner.
  • Remove upper fan shroud.
  • Remove drive belt.
  • Remove heater hose pipe from alternator and oil fill tubes from support bracket.
  • Remove alternator ...

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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES

Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported GMC 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: 2002 GMC Yukon XL 2500 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 AUTOMOBILES

Maintenance lamp reset procedures with corresponding images for most domestic and imported GMC cars and light trucks sold in the U.S. from 1990+.

General Motors Corp./Saturn Trucks -> Service Four Wheel Drive (4WD) System Warning Lamp ->
Vehicle: 2002 GMC Sierra 2500 6.0 V8 CNG

This lamp should light for approximately 6-8 seconds when the ignition is turned On as a bulb check. If the ...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported GMC cars and light trucks from 1990+

Radiator, Replace
Vehicle: 1990 GMC C1500 Pickup Sierra XC 6.2 V8 DIESEL

  • Drain cooling system into a suitable container.
  • Remove upper fan shroud.
  • Remove radiator hose inlet.
  • Remove radiator hose outlet.
  • Remove transmission oil cooler lines.
  • Remove overflow hose.
  • Remove ...

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SERPENTINE BELT SERVICE PROCEDURES FOR GMC AUTOMOBILES

Serpentine belt replacement procedures with corresponding images for most domestic and imported GMC cars and light trucks sold in the U.S. from 1990+.

Serpentine Drive Belt, Replace
Vehicle: 1995 GMC C2500 Pickup Sierra XC 5.0 V8 GAS

  • Rotate tensioner counterclockwise, using a 1/2 inch breaker bar with a socket placed on tensioner ...

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COMPONENT LOCATION DIAGRAMS FOR GMC AUTOMOBILES

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

Outside Moisture Sensor Diagram for 2006 GMC Envoy SLT 4.2 L6 GASOutside Moisture Sensor Diagram for 2006 GMC Envoy SLT 4.2 L6 GAS

Components on diagram:
  • Rearview Mirror
  • Headliner Harness
  • Moisture Sensor
  • Steering Column Diagram for 2007 GMC Sierra 1500 Classic SLE 4.8 V8 GASSteering Column Diagram for 2007 GMC Sierra 1500 Classic SLE 4.8 V8 GAS

    Components on diagram:
  • Turn Signal Switch
  • Ignition Switch
  • Horn Switch
  • Hazard Warning Switch
  • Ignition Key Alarm Switch
  • CLICK HERE TO GET FULL ACCESS TO GMC PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR GMC AUTOMOBILES

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

    2002 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2002 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Mode Actuator
  • HVAC Control Module
  • Recirculation Actuator
  • Right Air Temperature Actuator
  • Defrost Actuator
  • 2003 GMC Sierra 1500 HD  6.0 V8 GAS Wiring Diagram2003 GMC Sierra 1500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Seat Rear Vertical Motor -Driver
  • CLICK HERE TO GET FULL ACCESS TO GMC WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR GMC AUTOMOBILES

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

    Document: RELEASE OF DEXRON VI AUTOMATIC TRANSMISSION FLUID (ATF) - REVISED
    Vehicle: 1987 GMC R1500 Pickup 5.0 V8 GAS

    Auto Systems:
  • Chemicals, Antifreeze, Additives
  • Automatic Trans, Coolers, Torque Converter
  • Document: PERFORMANCE CHARACTERISTICS OF VEHICLES WITH ACCESSORY WHEEL/TIRE ASSEMBLIES INSTALLED AS "UPSIZED" TO ORIGINAL EQUIPMENT- REVISED
    Vehicle: 1991 GMC V1500 Suburban 6.2 V8 DIESEL

    Auto Systems:
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO GMC TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR GMC AUTOMOBILES

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

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