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1993 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 1993 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 1993 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 1993 GMC G25/G2500 VAN AUTOMOBILES

Cooling Fans -> Light Duty Trucks & Vans -> DESCRIPTION -> C, K, G & P SERIES -> LUMINA APV, SILHOUETTE & TRANS SPORT
Vehicle: 1993 GMC G25/G2500 VAN Vandura 5.7 V8 GAS

LUMINA APV, SILHOUETTE & TRANS SPORT

This fan, Fig. , is driven by an electric motor which is attached to the radiator support. The cooling fan is controlled by the ECM, based on inputs from the coolant temperature sensor, A/C fan control switch and vehicle speed. The ECM controls the fan through a ground circuit, which energizes the fan control relay, supplying voltage to the fan motor.

The ECM grounds the circuit when coolant temperature is over 223°F or when A/C is On.

C, K, G & P ...

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BRAKE SERVICE PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

Anti-lock Brakes -> Rear Wheel Anti-Lock Brake System -> Precautions -> General Service Precautions
Vehicle: 1993 GMC G25/G2500 VAN Vandura 5.0 V8 GAS

General Service Precautions

Avoid contact with brake fluid when servicing the anti-lock brake syste...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

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: 1993 GMC G25/G2500 VAN Rally 5.0 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 1993 GMC G25/G2500 VAN AUTOMOBILES

DRIVESHAFT, Replace -> One Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS

One Piece Driveshaft
  • Raise and support vehicle.
  • Mark rear universal joint to drive shaft flange.
  • Remove retaining bolts and clamps.
  • Remove propeller shaft from pinion drive flange.
  • Remove propeller shaft from transmission/transfer case.
  • Using tape or a rubber band, wrap the U-Joint bearing caps to ensure bearing caps do not separate from U-Joint.
  • Reverse procedure to install, noting the following:
    • Align reference marks made during removal.
    • Torque yoke retainer bolts to 18 ft. lbs.
Two Piece Driveshaft
  • Raise and support vehicle.
  • Suppor...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

Alternator, Replace
Vehicle: 1993 GMC G25/G2500 VAN Vandura 6.2 V8 DIESEL

  • 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...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

General Motors Corp./Saturn Trucks -> Traction Control System (TCS)/Electronic Stability Control (ESC) Warning Lamp ->
Vehicle: 1993 GMC G25/G2500 VAN Vandura 4.3 V6 GAS

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

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

Radiator, Replace
Vehicle: 1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL

  • 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...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1993 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 ...

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COMPONENT LOCATION DIAGRAMS FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

Component location diagrams for most 1993 GMC G25/G2500 VAN cars and light trucks sold in the U.S. from 1990+.

Power Locks, Windows & Mirrors with Keyless Entry Diagram for 1993 GMC G25/G2500 VAN Rally 5.0 V8 GASPower Locks, Windows & Mirrors with Keyless Entry Diagram for 1993 GMC G25/G2500 VAN Rally 5.0 V8 GAS

Components on diagram:
  • Keyless Entry Module
  • Keyless Entry Delay Set Switch
  • Splice S-203
  • Splice S-205
  • Splice S-289
  • I/P Harness And Control Diagram for 1993 GMC G25/G2500 VAN Vandura 6.2 V8 DIESELI/P Harness And Control Diagram for 1993 GMC G25/G2500 VAN Vandura 6.2 V8 DIESEL

    Components on diagram:
  • Vehicle Speed Sensor Buffer Module
  • Parking Brake Warning Switch
  • Ground G-200
  • Splice S-208
  • Splice S-212
  • CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

    OEM drawn wiring diagrams for most 1993 GMC G25/G2500 VAN cars and light trucks sold in the U.S.

    1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL Wiring Diagram1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Water-In-Fuel Sensor
  • Fuel Shutoff Solenoid
  • Fuel Heater
  • Fast Idle Solenoid
  • Fast Idle Temperature Switch
  • 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS Wiring Diagram1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS Wiring Diagram

    Components on diagram:
  • LH Side Marker Lamp
  • RH Side Marker Lamp
  • Light Switch
  • LH Tail Stop And Turn Signal Lamp
  • CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

    OEM TSB listings for most 1993 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: 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: Air Conditioning Odor
    Vehicle: 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS

    Symptoms:
  • Odors
  • Auto Systems:
  • Heating, A/C, Ventilation, Defogger
  • CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1993 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 1993 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 1993 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 1993 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 1993 GMC G25/G2500 VAN SPECIFICATIONS DATA!

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

    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 1974 GMC G25/G2500 Van A/C Bracket1974 GMC G25/G2500 Van A/C Bracket, For use with 1 in. header bolts with bracket; Designed for custom or factory applications; Constructed of 0.25 in. stamped steel and polished to a high luster..

    Source: Auto Body Parts Store

    $13.00

    Click here to view more details about 2013 GMC Pickup Sierra Aftermarket Trim Ring2013 GMC Pickup Sierra Aftermarket Trim Ring, Aftermarket Trim Ring; 17 Inch; ABS, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $41.50

    Click here to view more details about 1995 GMC G25/G2500 Van Vandura V6, 4.3 L, 262 CID Rebuilt Engine1995 GMC G25/G2500 Van Vandura V6, 4.3 L, 262 CID Rebuilt Engine, TBI, no balance shaft, roller cam, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,360.00

    Click here to view more details1979 GMC G25/G2500 VAN Used Upper Control Arm, Passenger Side, 2410182, NEW AFTERMARKET, Very Good.

    Source: Used Auto Parts Store

    $130.00

    Click here to view more details1987 GMC G25/G2500 VAN Used Alternator, 5.7, AUTO, 4X2 100 amp, gasoline, Very Good.

    Source: Used Auto Parts Store

    $75.00
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