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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!
    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 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

    General Service Domestic Vehicles -> 1992-93 -> System Inspection -> COMPRESSOR -> CONDENSER -> EVAPORATOR -> RECEIVER-DRIER -> REFRIGERANT LINE RESTRICTIONS -> THERMOSTATIC EXPANSION VALVE
    Vehicle: 1993 GMC G25/G2500 VAN Rally 5.7 V8 GAS

    While a detailed diagnostic procedure for all air conditioning systems would be impractical due to the many variations in construction and operation, there are three fundamental components of a total diagnosis:

    • Refrigerant systems must have an adequate, but not excessive charge.
    • Determination must be made whether the refrigerant system is governed by a cycling clutch compressor or by valves which control evaporator pressure.
    • The air distribution system (blower motor, switches, vacuum lines and air ducts) must be operational before checking the refrigera...

    CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1993 GMC G25/G2500 VAN AUTOMOBILES

    Disc Brakes -> Bendix Single Piston Sliding Caliper -> Precautions -> Brake Disc Service -> Brake Lines & Linings -> Brake Roughness -> General
    Vehicle: 1993 GMC G25/G2500 VAN Rally 5.7 V8 GAS

    Brake Lines & Linings

    Remove one of the front wheels and inspect the brake disc, caliper and linings.

    Do not allow any oil or grease on the linings. It is recommended that all linings be replaced in sets when worn or damaged.

    If the caliper is cracked or fluid leakage through the casting is evident, it must be replaced as a unit.

    Brake Roughness

    The most common cause of brake chatter on disc brakes is a variation in thickness of the disc. If roughness or vibration is encountered during highway operation or if pedal pumping is experienced at low speeds, the disc may have excessive thickne...

    CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN BRAKE SERVICE PROCEDURES

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

    General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1988-06 C/K, G & R/V Series w/Diesel Engines -> Normal Service -> Severe Service
    Vehicle: 1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL

    Normal Service

    Repl...

    CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN FUEL FILTER REPLACEMENT PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

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

    Starter, Replace
    Vehicle: 1993 GMC G25/G2500 VAN Vandura 4.3 V6 GAS

    • Disconnect battery ground cable.
    • Raise and support vehicle.
    • Remove starter to engine brace and heat shields, if equipped.
    • Remove starter motor mounting bolts and lower ...

    CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN STARTER & ALTERNATOR REPLACEMENT PROCEDURES

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

    General Motors Corp./Saturn Trucks -> Check Engine Oil Level ->
    Vehicle: 1993 GMC G25/G2500 VAN Vandura 5.7 V8 GAS

    This system is used to indicate a low engine oil level condition. The lamp should light during engine starting. If oil level is sufficient, the lamp should go off when engine is operating. If oil level is low the...

    CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN MAINTENANCE LAMP RESET PROCEDURES

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

    Coolant Hose, Replace -> Lower -> Upper
    Vehicle: 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS

    Lower

    • Drain cooling system into a suitable container.
    • Reposition hose clamp from radiator.
    • Remove radiator outlet hose from radiator.
    • Reposition hose clamp from coolant pump.
    • Remove radiator outlet hose from coolant pump and from vehicle.
    • Reverse procedure...

    CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN RADIATOR & HOSE REPLACEMENT PROCEDURES

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

    Serpentine Drive Belt, Replace
    Vehicle: 1993 GMC G25/G2500 VAN Vandura 5.7 V8 GAS

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

    CLICK HERE TO GET FULL ACCESS TO 1993 GMC G25/G2500 VAN SERPENTINE BELT SERVICE PROCEDURES

    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 6.2 V8 DIESELA/C Compressor & Blower Motor Diagram for 1993 GMC G25/G2500 VAN Rally 6.2 V8 DIESEL

    Components on diagram:
  • Blower Motor
  • A/C Compressor
  • Evaporator Pressure Control Switch
  • Connector C-111
  • Connector C-134
  • Engine Wiring to Shipping Panel Diagram for 1993 GMC G25/G2500 VAN Rally 4.3 V6 GASEngine Wiring to Shipping Panel Diagram for 1993 GMC G25/G2500 VAN Rally 4.3 V6 GAS

    Components on diagram:
  • Fuel Pump Relay
  • PCM
  • Connector C-100
  • Connector C-201
  • Connector C-250
  • 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 Vandura 5.0 V8 GAS Wiring Diagram1993 GMC G25/G2500 VAN Vandura 5.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Halogen Headlamps
  • 1993 GMC G25/G2500 VAN Vandura 5.0 V8 GAS Wiring Diagram1993 GMC G25/G2500 VAN Vandura 5.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Transmission Input Speed Sensor
  • TP Sensor
  • Engine Speed Sensor
  • 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 Brake Drum, Rear, Floating; 6 x 5.5 in. bolt hole pattern; 13.39 in. outer diameter; 11.06 in. maximum diameter; 0.45 in. bolt size; 3.58 in. height; This is a high quality, OE replacement brake drum..

    Source: Auto Body Parts Store

    $44.62

    Click here to view more details1974 GMC G25/G2500 Van Headlight Switch, Blade type; 7-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

    $35.62

    Click here to view more details2015 GMC Terrain Driver Side Rear Bumper Cover Reflector, Driver Side Rear Bumper Cover Reflector, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $18.50

    Click here to view more details about 1992 GMC G25/G2500 Van Vandura V6, 4.3 L, 262 CID Rebuilt Engine1992 GMC G25/G2500 Van Vandura V6, 4.3 L, 262 CID Rebuilt Engine, Fuel injected, roller cam, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,275.00

    Click here to view more details1983 GMC G25/G2500 VAN Used Wiper Motor Front, Very Good.

    Source: Used Auto Parts Store

    $70.00

    Click here to view more details1989 GMC G25/G2500 VAN Used Exhaust Manifold, 8-350 (5.7L), L., Without AIR; TH 700, CANAD, Very Good.

    Source: Used Auto Parts Store

    $96.00
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