1991 Chevrolet G30 VAN REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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1991 Chevrolet G30 VAN CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 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 1991 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 1991 Chevrolet G30 VAN AUTOMOBILES

A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-95 Chevrolet & GMC C & K, G, P & R & V Series
Vehicle: 1991 Chevrolet G30 VAN 4.3 V6 GAS

[[table data]]

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BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES

ANTI-LOCK BRAKES, GENERAL MOTORS -> Rear Wheel Anti-Lock Brake System -> DIAGNOSIS & TESTING -> DIAGNOSTIC CHARTS -> DIAGNOSTIC CIRCUIT CHECK -> READING TROUBLE CODES -> WIRING DIAGRAMS
Vehicle: 1991 Chevrolet G30 VAN 6.2 V8 DIESEL

WIRING DIAGRAMS

Refer to "Wiring Diagrams" in "Vehicle Systems."

READING TROUBLE CODES

Trouble codes are accessed by connecting a jumper wire between terminals A and H of the underdash ALDL connector and observing the flashes of the brake warning lamp. Note the following when performing the Diagnostic Circuit Check to access trouble codes.

  • When the terminals are jumped, count the number of short flashes starting from the initial long flash and including the long flash in the count.
  • The count sequence will repeat as long as the ALDL connector terminals are jumped with the ignition on.
  • ...

[[table data]]

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Chevrolet G30 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: 1991 Chevrolet G30 VAN 6.2 V8 DIESEL

Normal Service

Repl...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES

DRIVESHAFT, Replace -> One Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1991 Chevrolet G30 VAN Sportvan 6.2 V8 DIESEL

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 1991 Chevrolet G30 VAN AUTOMOBILES

Starter, Replace
Vehicle: 1991 Chevrolet G30 VAN 5.7 V8 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 ...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES

General Motors Corp./Saturn Trucks -> All Wheel Drive (AWD) System Warning Lamp ->
Vehicle: 1991 Chevrolet G30 VAN 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 the war...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Chevrolet G30 VAN AUTOMOBILES

Radiator, Replace
Vehicle: 1991 Chevrolet G30 VAN 6.2 V8 DIESEL

  • 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 1991 Chevrolet G30 VAN AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1991 Chevrolet G30 VAN Sportvan 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 1991 Chevrolet G30 VAN AUTOMOBILES

Component location diagrams for most 1991 Chevrolet G30 VAN cars and light trucks sold in the U.S. from 1990+.

ECM & Associated Components Diagram for 1991 Chevrolet G30 VAN Sportvan 5.7 V8 GASECM & Associated Components Diagram for 1991 Chevrolet G30 VAN Sportvan 5.7 V8 GAS

Components on diagram:
  • Electronic Control Module
  • ESC Module
  • Hot Fuel Handling Module
  • Heater & A/C Control Diagram for 1991 Chevrolet G30 VAN  5.7 V8 GASHeater & A/C Control Diagram for 1991 Chevrolet G30 VAN 5.7 V8 GAS

    Components on diagram:
  • Blower Motor
  • Blower Resistor
  • CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet G30 VAN PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1991 Chevrolet G30 VAN AUTOMOBILES

    OEM drawn wiring diagrams for most 1991 Chevrolet G30 VAN cars and light trucks sold in the U.S.

    1991 Chevrolet G30 VAN  7.4 V8 GAS Wiring Diagram1991 Chevrolet G30 VAN 7.4 V8 GAS Wiring Diagram

    Components on diagram:
  • LH High-Low Headlamp
  • RH High-Low Headlamp
  • 1991 Chevrolet G30 VAN  5.7 V8 GAS Wiring Diagram1991 Chevrolet G30 VAN 5.7 V8 GAS Wiring Diagram

    Components on diagram:
  • Brake Pressure Warning Switch
  • CLICK HERE TO GET FULL ACCESS TO 1991 Chevrolet G30 VAN WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1991 Chevrolet G30 VAN AUTOMOBILES

    OEM TSB listings for most 1991 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: 1991 Chevrolet G30 VAN 4.3 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1991 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 1991 Chevrolet G30 VAN TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1991 Chevrolet G30 VAN AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 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 1991 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 1991 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 1991 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 1991 Chevrolet G30 VAN SPECIFICATIONS DATA!

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