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1990 Chevrolet G30 VAN CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet 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 1990 Chevrolet G30 VAN car and truck repair procedures including Chevrolet 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 Chevrolet G30 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 Chevrolet mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1990 Chevrolet G30 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 1990 Chevrolet G30 VAN AUTOMOBILES

A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-95 Chevrolet & GMC C & K, G, P & R & V Series
Vehicle: 1990 Chevrolet G30 VAN 6.2 V8 DIESEL

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BRAKE SERVICE PROCEDURES FOR 1990 Chevrolet G30 VAN AUTOMOBILES

POWER BRAKE UNITS, GENERAL MOTORS -> Bendix Brake Boosters -> HYDRO-BOOST -> ACCUMULATOR SERVICE -> ASSEMBLE -> BLEEDING BOOSTER -> CLEANING & INSPECTION -> DESCRIPTION -> DISASSEMBLE
Vehicle: 1990 Chevrolet G30 VAN 4.3 V6 GAS

DESCRIPTION

The Hydro-Boost system, Fig. , provides an additional cylinder in the brake system. This cylinder contains no brake fluid. The Hydro-Boost cylinder is hydraulically operated, by pressurized fluid from the power steering pump, providing power assist to operate a dual master cylinder brake system.

The booster is composed of two sections; the linkage section and the power section.

The booster is designed so that if a total absence of power assist occurs, the brakes can be applied manually, but somewhat greater pressure on the brake pedal is required.

DISASSEMBLE

  • Place accumulato...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Chevrolet G30 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: 1990 Chevrolet G30 VAN Sportvan 6.2 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 ...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Chevrolet G30 VAN AUTOMOBILES

DRIVESHAFT, Replace -> One Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1990 Chevrolet G30 VAN 7.4 V8 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 1990 Chevrolet G30 VAN AUTOMOBILES

Alternator, Replace
Vehicle: 1990 Chevrolet G30 VAN Sportvan 7.4 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 mounting bracket.
  • Rem...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Chevrolet G30 VAN AUTOMOBILES

General Motors Corp./Saturn Trucks -> Service Throttle Soon Indicator Lamp ->
Vehicle: 1990 Chevrolet G30 VAN Sportvan 5.7 V8 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 1990 Chevrolet G30 VAN AUTOMOBILES

Radiator, Replace
Vehicle: 1990 Chevrolet G30 VAN 4.3 V6 GAS

  • Drain cooling system into a suitable container.
  • Remove upper fan shroud.
  • Remove radiator hose inlet.
  • Remove radiator hose outlet.
  • Remove transmission oil cooler lines.
  • Remove overflow hose.
  • Remove ...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Chevrolet G30 VAN AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1990 Chevrolet G30 VAN 7.4 V8 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 1990 Chevrolet G30 VAN AUTOMOBILES

Component location diagrams for most 1990 Chevrolet G30 VAN cars and light trucks sold in the U.S. from 1990+.

Fuel Module   Diagram for 1990 Chevrolet G30 VAN  7.4 V8 GASFuel Module Diagram for 1990 Chevrolet G30 VAN 7.4 V8 GAS

Components on diagram:
  • Fuel Module
  • MAP Sensor   Diagram for 1990 Chevrolet G30 VAN  4.3 V6 GASMAP Sensor Diagram for 1990 Chevrolet G30 VAN 4.3 V6 GAS

    Components on diagram:
  • MAP Sensor
  • CLICK HERE TO GET FULL ACCESS TO 1990 Chevrolet G30 VAN PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1990 Chevrolet G30 VAN AUTOMOBILES

    OEM drawn wiring diagrams for most 1990 Chevrolet G30 VAN cars and light trucks sold in the U.S.

    1990 Chevrolet G30 VAN  6.2 V8 DIESEL Wiring Diagram1990 Chevrolet G30 VAN 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • RWAL Module
  • Brake Pressure Warning Switch
  • Antilock Brake Valve
  • 1990 Chevrolet G30 VAN Sportvan 6.2 V8 DIESEL Wiring Diagram1990 Chevrolet G30 VAN Sportvan 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Left Front Speaker
  • Right Front Speaker
  • Antenna
  • CLICK HERE TO GET FULL ACCESS TO 1990 Chevrolet G30 VAN WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1990 Chevrolet G30 VAN AUTOMOBILES

    OEM TSB listings for most 1990 Chevrolet G30 VAN cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1990 Chevrolet G30 VAN 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1990 Chevrolet G30 VAN 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 1990 Chevrolet G30 VAN TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1990 Chevrolet G30 VAN AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Chevrolet G30 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 1990 Chevrolet G30 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 1990 Chevrolet G30 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 1990 Chevrolet G30 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 1990 Chevrolet G30 VAN SPECIFICATIONS DATA!

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    Click here to view more details1973 Chevrolet G30 Van Headlight Switch, Blade type; 8-prong male terminal; Dashboard mounted; A high quality, direct fit OE replacement headlight switch; With 18 months limited Prozone warranty..

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    $9.23

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    Click here to view more details1988 Chevrolet G30 VAN Used Alternator, 6.5, AUTO, 4X4, Very Good.

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    Click here to view more details1993 Chevrolet G30 VAN Used A/C Compressor, 0.0, AUTO, FWD 6-262 (4.3L), Very Good.

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