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Chevrolet G30 VAN CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW
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A/C & HEATER SERVICE PROCEDURES FOR Chevrolet G30 VAN AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Chevrolet G30 VAN cars and light trucks from 1990+
General Service Domestic Vehicles -> 1992-93 -> Leak Tests -> Electronic Leak Detectors -> Flame-Type (Halide) Leak Detectors -> Fluid Leak Detectors
Vehicle: 1992 Chevrolet G30 VAN 5.7 V8 GAS
Testing the refrigerant system for leaks is one of the most important phases of troubleshooting. One or more of the methods outlined will prove useful in detecting leaks or checking connections if service work is performed. Before beginning any leak test, attach a manifold gauge set and note pressure. If little or no pressure is indicated, a partial charge must be installed. Check all connections, compressor head gasket, oil filler plug and compressor shaft seal for leaks.
For R-134a system an electronic type leak detector is recommended.
Electronic Leak Detectors
T...
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BRAKE SERVICE PROCEDURES FOR Chevrolet G30 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Chevrolet G30 VAN cars and light trucks from 1990+.
Power Brake Units -> Delco-Moraine Brake Boosters -> Description -> Operation -> Single Diaphragm Type -> Tandem (Dual) Diaphragm Type
Vehicle: 1994 Chevrolet G30 VAN 7.4 V8 GAS
In order to properly service power brake systems, a thorough understanding of the various power assist systems is necessary. These systems provide a mechanical assist, acting to increase the force applied to the master cylinder piston by the driver while decreasing the effort necessary to obtain acceptable stopping performance. Two basic types of power assist mechanisms are used: vacuum assist diaphragm assemblies which use engine vacuum and in some cases vacuum from an external vacuum pump, and hydraulic assist assemblies which use hydraulic pressure developed by an external pump (...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Chevrolet G30 VAN AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Chevrolet G30 VAN cars and light trucks sold in the U.S. for 1980+.
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: 1994 Chevrolet G30 VAN 5.7 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 Chevrolet G30 VAN AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Chevrolet G30 VAN cars and light trucks from 1990+.
DRIVESHAFT, Replace -> One Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1997 Chevrolet G30 VAN Express 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 Chevrolet G30 VAN AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Chevrolet G30 VAN cars and light trucks from 1990+.
Alternator, Replace -> Auxiliary -> Single Alternator
Vehicle: 1997 Chevrolet G30 VAN Express 7.4 V8 GAS
Single Alternator
- Disconnect battery ground cable.
- Remove coolant reservoir and air cleaner.
- Remove upper fan shroud.
- Remove drive belt, using suitable removal tool.
- Remove heater hose pipe from alternator and oil fill tubes from support bracket.
- Remove alternator mounting bolts, then alternator from vehicle.
- Disconnect electrical connectors.
- Reverse procedure to install, noting the following:
- Torque front alternator mounting bolt to 37 f...
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MAINTENANCE LAMP RESET PROCEDURES FOR Chevrolet G30 VAN AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Chevrolet G30 VAN cars and light trucks sold in the U.S. from 1990+.
General Motors Corp./Saturn Trucks -> Traction Control System (TCS)/Electronic Stability Control (ESC) Warning Lamp ->
Vehicle: 1995 Chevrolet G30 VAN 6.5 V8 DIESEL
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 Chevrolet G30 VAN AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Chevrolet G30 VAN cars and light trucks from 1990+
Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 1996 Chevrolet G30 VAN 6.5 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 Chevrolet G30 VAN AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported Chevrolet G30 VAN cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1995 Chevrolet G30 VAN 5.7 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 Chevrolet G30 VAN AUTOMOBILES
Component location diagrams for most Chevrolet G30 VAN cars and light trucks sold in the U.S. from 1990+.
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WIRING DIAGRAMS FOR Chevrolet G30 VAN AUTOMOBILES
OEM drawn wiring diagrams for most Chevrolet G30 VAN cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Chevrolet G30 VAN AUTOMOBILES
OEM TSB listings for most Chevrolet G30 VAN cars and light trucks sold in the U.S. from 1985+.
Document: EXTERIOR LAMP CONDENSATION & REPLACEMENT GUIDELINES Vehicle: 1996 Chevrolet G30 VAN 6.5 V8 DIESEL Auto Systems: |
Document: DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN - REVISED Vehicle: 1986 Chevrolet G30 VAN 5.7 V8 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR Chevrolet G30 VAN AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 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 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 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 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
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