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1994 GMC G25/G2500 VAN 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 1994 GMC G25/G2500 VAN 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 G25/G2500 VAN 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 1994 GMC G25/G2500 VAN 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 1994 GMC G25/G2500 VAN AUTOMOBILES

    General Service Domestic Vehicles -> 1994-95 -> Precautions -> Cleanliness -> General Service -> Product Compatibility -> R-12 Systems -> R-134a Systems -> Safety
    Vehicle: 1994 GMC G25/G2500 VAN Vandura 5.0 V8 GAS

    Product Compatibility

    Before replenishing refrigerant oil, ensure product compatibility with the system being serviced. Refer to "A/C Data" for specifications.

    Safety
    R-12 Systems

    The Freon refrigerant used in car air conditioners is also known as R-12. It is colorless and odorless both as a gas and a liquid. Since it boils (vaporizes) at -21.7°F, it will usually be in a vapor state when being handled in a repair shop. But if a portion of the liquid coolant should come in contact with the hands or face, note that its temperature momentarily will be at least...

    CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    Drum Brakes -> Inspection
    Vehicle: 1994 GMC G25/G2500 VAN Rally 6.5 V8 DIESEL

    • Inspect components for damage or unusual wear. Replace as necessary.
    • Inspect backing plate attaching bolts, and ensure they are tight.
    • Inspect wheel cylinders. Excessive fluid indicates cup leakage and need for wheel cylinder replacement. A slight amount of fluid is always present and is considered normal, act...

    CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Component Locations -> Late 1986-06 Chevrolet & GMC G Series w/Gasoline Engines
    Vehicle: 1994 GMC G25/G2500 VAN Rally 5.7 V8 GAS

    CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN FUEL FILTER REPLACEMENT PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
    Vehicle: 1994 GMC G25/G2500 VAN Vandura 4.3 V6 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 ...

    CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    Alternator, Replace
    Vehicle: 1994 GMC G25/G2500 VAN Rally 5.0 V8 GAS

    • Disconnect battery ground cable.
    • Disconnect terminal plug and battery lead from rear of alternator.
    • Remove accessory drive belt.
    • Remove alternator mounting bolts.
    • Separate alternator from mount...

    CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    General Motors Corp./Saturn Trucks -> Service Four Wheel Drive (4WD) System Warning Lamp ->
    Vehicle: 1994 GMC G25/G2500 VAN Vandura 4.3 V6 GAS

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

    CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    Radiator, Replace
    Vehicle: 1994 GMC G25/G2500 VAN Vandura 4.3 V6 GAS

    • Drain coolant from radiator into a suitable container.
    • Remove upper fan shroud bolts and upper fan shroud.
    • Remove upper insulators and brackets.
    • Remove upper and lower radiator hoses.
    • Disconnect and plug transmission fluid cooler lines.
    • Disconnect and plug engine oil cooler lines.
    • Remove lower fan shroud r...

    CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 1994 GMC G25/G2500 VAN Rally 4.3 V6 GAS

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

    CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    Component location diagrams for most 1994 GMC G25/G2500 VAN cars and light trucks sold in the U.S. from 1990+.

    A/C Compressor & Blower Motor Diagram for 1994 GMC G25/G2500 VAN Rally 5.0 V8 GASA/C Compressor & Blower Motor Diagram for 1994 GMC G25/G2500 VAN Rally 5.0 V8 GAS

    Components on diagram:
  • Blower Motor
  • A/C Compressor
  • Evaporator Pressure Control Switch
  • Connector C-111
  • Connector C-134
  • CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    OEM drawn wiring diagrams for most 1994 GMC G25/G2500 VAN cars and light trucks sold in the U.S.

    1994 GMC G25/G2500 VAN Vandura 6.5 V8 DIESEL Wiring Diagram1994 GMC G25/G2500 VAN Vandura 6.5 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Light Switch
  • Hi Beam Indicator
  • Headlamp Dimmer Switch
  • LH/RH HI/Lo Beam Headlamp Assembly
  • 1994 GMC G25/G2500 VAN Rally 4.3 V6 GAS Wiring Diagram1994 GMC G25/G2500 VAN Rally 4.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Transmission Control Module
  • Throttle Position Sensor
  • Manifold Absolute Pressure Sensor
  • Engine Speed Sensor
  • CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    OEM TSB listings for most 1994 GMC G25/G2500 VAN cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1994 GMC G25/G2500 VAN Rally 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: Bumps or Rust Colored Spots in Paint Due to Rail or Iron Dust
    Vehicle: 1994 GMC G25/G2500 VAN Rally 4.3 V6 GAS

    Auto Systems:
  • Finishes, Body Structure, Frame, Bumpers
  • CLICK HERE TO GET FULL ACCESS TO 1994 GMC G25/G2500 VAN TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1994 GMC G25/G2500 VAN AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1994 GMC G25/G2500 VAN 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 1994 GMC G25/G2500 VAN 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 1994 GMC G25/G2500 VAN 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 1994 GMC G25/G2500 VAN 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 1994 GMC G25/G2500 VAN SPECIFICATIONS DATA!

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

    Click here to view more details about 1974 GMC G25/G2500 Van Antenna1974 GMC G25/G2500 Van Antenna, 4-section mast; 1200 mm cable; With top and side key; A high quality universal fender 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

    $5.62

    Click here to view more details1971 GMC G25/G2500 Van Alternator, 55 amps, single V-type pulley, external fan, externally regulated; Replaces OE Delco unit; Re-engineered and remanufactured to exacting standards for unsurpassed dependability; Constructed with the extensive remanufacturing process that includes total core disassembly, extensive component replacement and rigorous three-phase testing that ensures to deliver performance that can be depended on; Features a returned core alternator that is thoroughly stripped down to base components and durable parts are cleaned, machined and tested to precise standards; Offers new components including brushes, bushings, springs, contacts; Assembled with re-claimed durable parts and tested again to ensure proper function; Lubricated with aerospace-grade grease to ensure long-life under grueling conditions; Comes with a complimentary 24/7 Quality-Built (QB) Roadside Assistance Program (RAP) which includes a jump-start or tow for 1 year from the date of purchase limited to 3 events per year and a maximum reimbursement of $60 each event; The RAP is available anywhere in the U.S., Canada, and Puerto Rico for passenger vehicles, vans, and light trucks, and operates on a reimbursement basis where customers are required to pay the service provider at the time the service is rendered and submit the corresponding receipt to QB for reimbursement..

    Source: Auto Body Parts Store

    $32.18

    Click here to view more details about 2004 GMC Sonoma Pickup 15" x 7" Alloy Wheel2004 GMC Sonoma Pickup 15" x 7" Alloy Wheel, Alloy Wheel; 15 X 7; 5 Spokes; 5 Lug; 4.75 Inch BP; Silver, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $100.45

    Click here to view more details1978 GMC G25/G2500 Van Vandura L6, 4.8 L, 292 CID Rebuilt Engine, Without smog, three bolt starter mount., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,246.00

    Click here to view more details1990 GMC G25/G2500 VAN Used Steering Gear, 5.7, AUTO, RWD, PS POWER STEERING; 20 SER, 8-350 (5.7L), OPT NA1, Very Good.

    Source: Used Auto Parts Store

    $160.00

    Click here to view more details1992 GMC G25/G2500 VAN Used A/C Compressor, 5.7, AUTO, 4X2 8-350 (5.7L), Very Good.

    Source: Used Auto Parts Store

    $125.00
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