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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

Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Domestic Vehicles
Vehicle: 1993 GMC G25/G2500 VAN Vandura 5.7 V8 GAS

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BRAKE SERVICE PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

Drum Brakes -> Brake Service -> C & K Series w/Non-Servo Brakes -> Duo-Servo Brakes -> Installation -> Lumina APV, Silhouette & Trans Sport -> Removal -> Tracker
Vehicle: 1993 GMC G25/G2500 VAN Vandura 4.3 V6 GAS

Duo-Servo Brakes

Removal
  • Raise and support vehicle, then remove tire and wheel assembly.
  • Remove brake drum. If brake lining is dragging on brake drum, back off brake adjustment by rotating adjustment screw. Refer to individual truck chapter for procedure. If brake drum is rusted or corroded to axle flange and cannot be removed, lightly tap flange to drum mounting surface with a suitable hammer.
  • Using brake spring pliers or equivalent, unhook primary and secondary return springs, Fig. . Observe location of brake parts being removed to aid during installation.
  • Remove brake hold-down spri...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1993 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: 1993 GMC G25/G2500 VAN Vandura 5.0 V8 GAS

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 1993 GMC G25/G2500 VAN Rally 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 ...

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

Alternator, Replace
Vehicle: 1993 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...

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

General Motors Corp./Saturn Trucks -> Service Throttle Soon Indicator Lamp ->
Vehicle: 1993 GMC G25/G2500 VAN Vandura 4.3 V6 GAS

A "Service Throttle Soon" indicator lamp is mounted in the lower righthand instrument cluster corner on these models. It lights when the ignition is turned On, but should go out approximately 1-5 seconds after the engine starts.

Traditional throttle cables are no longer used on these models. The PCM receives signals from an electron...

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

Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL

Inlet

  • Remove air cleaner.
  • Drain cooling system into a suitable container.
  • Remove heater hose support clamp bolt.
  • Reposition heater core inlet hose clamp at engine.
  • Remove hose from engine.
  • Reposition heater hose inlet clamp at heater core.
  • Remove heater inlet hose from heater core.
  • Remove hose from vehicle.
  • Reverse procedure to install.

Outlet

  • Remove air cleaner.
  • Drain cooling system into a suitable container.
  • Remove heater hose support clamp bolt.
  • Reposition heater hose...

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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 Vandura 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+.

A/C Compressor & Blower Motor Diagram for 1993 GMC G25/G2500 VAN Rally 4.3 V6 GASA/C Compressor & Blower Motor Diagram for 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS

Components on diagram:
  • Blower Motor
  • A/C Compressor
  • Evaporator Pressure Control Switch
  • Connector C-111
  • Connector C-134
  • Components Locations Diagram for 1993 GMC G25/G2500 VAN Vandura 4.3 V6 GASComponents Locations Diagram for 1993 GMC G25/G2500 VAN Vandura 4.3 V6 GAS

    Components on diagram:
  • Data Link Connector
  • Vehicle Speed Sensor
  • Manifold Absolute Pressure Sensor
  • Oil Pressure Switch
  • Knock Sensor
  • 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 5.0 V8 GAS Wiring Diagram1993 GMC G25/G2500 VAN Rally 5.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Blower Motor
  • Blower Resistor
  • Heater Blower Switch
  • 1993 GMC G25/G2500 VAN Vandura 6.2 V8 DIESEL Wiring Diagram1993 GMC G25/G2500 VAN Vandura 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • LH Side Marker Lamp
  • RH Side Marker Lamp
  • Turn Signal Flasher
  • LH Park And Turn Signal Lamp
  • RH Park 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 details about 1974 GMC G25/G2500 Van Radiator1974 GMC G25/G2500 Van Radiator.

    Source: Auto Body Parts Store

    $150.54

    Click here to view more details1973 GMC G25/G2500 Van Headlight Switch, Blade type; 8-prong male terminal; Dashboard mounted; A high quality, direct fit OE replacement headlight switch; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $9.23

    Click here to view more details2002 GMC Pickup Fullsize C/K 15" x 6" Steel Wheel, Steel Wheel; 15 X 6; Solid Disc; 5 Lug; 5 Inch BP; Ident RAK; Black Full Face, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $69.50

    Click here to view more details1997 GMC G25/G2500 Van Savana V8, 5 L, 305 CID Rebuilt Engine, SFI, roller lifters, plastic timing cover, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,640.00

    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

    Click here to view more details1985 GMC G25/G2500 VAN Used Parking Lamp, Driver Side, Side Marker; (fender mtd), Very Good.

    Source: Used Auto Parts Store

    $24.00
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