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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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    1000 Series1500 Series2500 SeriesAcadia
    C1000 PickupC15/C1500 PickupC15/C1500 SuburbanC1500 Pickup
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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!
    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 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+

    Vacuum & Wiring Diagrams -> Light Duty Trucks & Vans -> Air Conditioning Compressor
    Vehicle: 1995 GMC C1500 Pickup Sierra XC 4.3 V6 GAS

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO GMC A/C & HEATER SERVICE PROCEDURES

    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+.

    Disc Brakes -> Delco-Moraine Single Piston Caliper -> Tightening Specifications
    Vehicle: 1994 GMC C2500 Pickup Sierra XC 6.5 V8 DIESEL

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO GMC BRAKE SERVICE PROCEDURES

    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 K1500 Pickup Sierra 6.5 V8 DIESEL

    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 ...

    CLICK HERE TO GET FULL ACCESS TO GMC FUEL FILTER REPLACEMENT PROCEDURES

    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+.

    CV AXLE SHAFT, Replace
    Vehicle: 2006 GMC Sierra 3500 SL 6.6 V8 DIESEL

    • 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 ...

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

    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+.

    Description
    Vehicle: 2009 GMC Sierra 2500 HD SLE 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...

    CLICK HERE TO GET FULL ACCESS TO GMC TIRE PRESSURE MONITORING SYSTEM PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR GMC AUTOMOBILES

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

    Starter, Replace
    Vehicle: 1990 GMC R3500 Pickup 5.7 V8 GAS

    • Disconnect battery ground cable.
    • Remove starter braces or heat shields, if equipped.
    • Disconnect starter solenoid electrical connectors.
    • Raise and support vehicle.
    • Remove at...

    CLICK HERE TO GET FULL ACCESS TO GMC STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    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: 2006 GMC Yukon SLT 5.3 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...

    CLICK HERE TO GET FULL ACCESS TO GMC CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES

    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 -> Water In Fuel Or Drain Fuel Filter Warning Lamp -> Diesel Engine
    Vehicle: 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL

    The Water In Fuel indicator should light when excessive water has entered the fuel system. As the fuel filter becomes plugged, a low pressure sensor activates the lamp. The lamp should light during engine starting as a bulb inspection. Once the engine has started, the lamp should go off. If the lamp is lit intermittently, drain fuel filter. If lamp remains lit, drain fuel filter. If the lamp still remains on after fuel filter has been drained, replace fuel filter. If lamp is lit dur...

    CLICK HERE TO GET FULL ACCESS TO GMC MAINTENANCE LAMP RESET PROCEDURES

    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: 1999 GMC Sierra 2500 5.3 V8 GAS

    • Drain radiator coolant into suitable container.
    • Remove upper and lower radiator hoses.
    • Remove mounting bolts and lower fan shroud.
    • Remove engine vent hose and surge take hose.
    • Disconnect engine o...

    CLICK HERE TO GET FULL ACCESS TO GMC RADIATOR & HOSE REPLACEMENT PROCEDURES

    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: 2009 GMC Sierra 1500 SLE 5.3 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 GMC SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR GMC AUTOMOBILES

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

     Diagram for 1993 GMC K3500 Pickup Sierra XC 7.4 V8 GAS Diagram for 1993 GMC K3500 Pickup Sierra XC 7.4 V8 GAS

    Components on diagram:
  • A/C Compressor Clutch Relay
  • Audio Amplifier Diagram for 2004 GMC Envoy XUV 5.3 V8 GASAudio Amplifier Diagram for 2004 GMC Envoy XUV 5.3 V8 GAS

    Components on diagram:
  • Audio Amplifier
  • 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.

    1988 GMC P35/P3500 VAN  6.2 V8 DIESEL Wiring Diagram1988 GMC P35/P3500 VAN 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Starter Motor Solenoid
  • Ignition Switch
  • Glow Plug Controller
  • Generator
  • Left Hand Battery
  • 2006 GMC Savana 3500 LT 6.0 V8 GAS Wiring Diagram2006 GMC Savana 3500 LT 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Instrument Panel Cluster
  • Cruise Control Module
  • Cruise Indicator
  • Powertrain Control Module
  • Stoplamp Switch
  • 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: PROPER AIR BAG SYSTEM DIAGNOSIS AND SERVICE
    Vehicle: 1999 GMC Sierra 2500 6.0 V8 GAS

    Auto Systems:
  • Seats, Belts, Interior Trim, Carpets, Air Bags
  • Document: WARRANTY - CORP PARTS RETURN PROGRAM - REV
    Vehicle: 1991 GMC R2500 Suburban 6.2 V8 DIESEL

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • 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!

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

    Click here to view more details about 1999 GMC K1500 Antenna1999 GMC K1500 Antenna, 3-section mast; 1200 mm cable; Includes mast screw; A high quality universal pillar side mount antenna; May require modification or other adjustment to your vehicle upon installation; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $6.17

    Click here to view more details about 1994 GMC K1500 Starter1994 GMC K1500 Starter, 12 V, 9 Teeth, Clockwise Rotation, DD Starter Type, Uses Only New Components, Meets Or Exceeds All OEM Specifications, With NSA's Limited 2-Year Warranty.

    Source: Auto Body Parts Store

    $84.29

    Click here to view more details about 2007 GMC Envoy Door Mirror, Passenger Side2007 GMC Envoy Door Mirror, Passenger Side, DOOR MIRROR, RH, TEXTURED, POWER, W/SIGNAL LAMP, MANUAL FOLD, CLEAR LENS, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $131.50

    Click here to view more details1993 GMC S15 Sonoma L4, 2.5 L, 2474 CC, 151 CID Rebuilt Engine, RWD, Roller cam, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,469.00

    Click here to view more details2002 GMC Yukon Used Suspension Compressor/Pump, CHECK THIS P/N-15070878, Very Good.

    Source: Used Auto Parts Store

    $323.00

    Click here to view more details2007 GMC Canyon Used Air Injection Pump, 2.9, AUTO, 4X2, Very Good.

    Source: Used Auto Parts Store

    $85.00
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