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Chevrolet G3500 VAN CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW
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1998 |

A/C & HEATER SERVICE PROCEDURES FOR Chevrolet G3500 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 G3500 VAN cars and light trucks from 1990+
Component Replacement & Adjustment -> Light Duty Trucks & Vans -> Heater Core, Replace -> Astro & Safari -> Bravada, S & T Series -> C & K Series -> Front -> G Series -> Montana, Silhouette, Trans Sport & Venture -> P Series -> Rear -> Tracker
Vehicle: 1998 Chevrolet G3500 VAN 5.7 V8 GAS
Astro & Safari
Front
- Remove air cleaner assembly.
- Drain engine coolant into suitable container.
- Disconnect inlet and outlet hoses from heater core.
- Remove heater assembly cover retaining screws.
- Remove heater core to heater assembly retaining screws and straps.
- Remove heater core from vehicle.
- Reverse procedure to install.
Rear
- Drain engine coolant into suitable container.
- Remove intermediate seat.
- Remove drivers door step lamp cover retaining screw.
- Remove step lamp assembly from...
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BRAKE SERVICE PROCEDURES FOR Chevrolet G3500 VAN AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Chevrolet G3500 VAN cars and light trucks from 1990+.
Anti-lock Brakes -> Kelsey-Hayes -> Precautions -> Battery Ground Cable -> Delco LOC II -> General Service Precautions -> Radio Security System -> Theftlock
Vehicle: 1998 Chevrolet G3500 VAN 5.7 V8 GAS
Battery Ground Cable
Prior to service disconnect battery ground cable and isolate as required.
Radio Security System
Theftlock
If the Theftlock system is active when battery power is interrupted, the customers security code must be entered to restore proper function of the radio. To unlock a secured radio after power loss, proceed as follows:
- "LOC" appears with ignition in On position.
- Press "NM" and "000" will appear on display.
- Press "NM" again to make last two digits agree with security code.
- Press "HR" to make first 1 or 2 digits agree with security code.
- Press "AM-FM" to select code entered. "SEC" wi...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Chevrolet G3500 VAN AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Chevrolet G3500 VAN cars and light trucks sold in the U.S. for 1980+.
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Replacement -> Gasoline Engines Except Equinox, Montana SV6, Relay, Rendezvous w/3.6L Engine, Terraza, Uplander & Vue (2004-06) & 2004-06 Envoy, Rainier & TrailBlazer -> Returnless Fuel System
Vehicle: 1998 Chevrolet G3500 VAN 7.4 V8 GAS
Returnless Fuel System
On models equipped with fuel injected engines, relieve fuel system pressure as outlined under "Fuel System Pressure Relief."
On models equipped with metal collar quick disconnect connectors, GM tool No. J37088-A, or equivalent, will be required to disconnect the connector. Pri...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Chevrolet G3500 VAN AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Chevrolet G3500 VAN cars and light trucks from 1990+.
DRIVESHAFT, Replace -> One Piece Driveshaft -> Two Piece Driveshaft
Vehicle: 1998 Chevrolet G3500 VAN 6.5 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 Chevrolet G3500 VAN AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Chevrolet G3500 VAN cars and light trucks from 1990+.
Starter, Replace
Vehicle: 1998 Chevrolet G3500 VAN 6.5 V8 DIESEL
- Disconnect battery ground cable.
- Raise and support vehicle.
- Remove starter to engine brace and heat shields.
- Disconnect wires from solenoids.
- Remove starter motor mounting bolts, washers and lower starter. Record position of shims, if required.
- Remove starter motor from vehicle.
- Reverse procedure to install, notin...
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MAINTENANCE LAMP RESET PROCEDURES FOR Chevrolet G3500 VAN AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Chevrolet G3500 VAN cars and light trucks sold in the U.S. from 1990+.
General Motors Corp./Saturn Trucks -> Change Trans Fluid Indicator ->
Vehicle: 1998 Chevrolet G3500 VAN 5.7 V8 GAS
This message will appear on the DIC (Driver Information Center) when it is time to change the transmission fluid....
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Chevrolet G3500 VAN AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Chevrolet G3500 VAN cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1998 Chevrolet G3500 VAN 6.5 V8 DIESEL
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp from radiator.
- Remove radiator outlet hose from radiator.
- Reposition hose clamp from water pump.
- Remove radiator outlet hose from water pump and from vehicle.
- Reverse procedure to install.
Upper
- Drain co...
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SERPENTINE BELT SERVICE PROCEDURES FOR Chevrolet G3500 VAN AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported Chevrolet G3500 VAN cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1998 Chevrolet G3500 VAN 6.5 V8 DIESEL
- Rotate tensioner arm counterclockwise using 3/8 inch breaker bar.
- Remove belt from pulleys.
- Route new belt over all pulleys except tensioner arm.
- Rotate tensioner arm co...
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COMPONENT LOCATION DIAGRAMS FOR Chevrolet G3500 VAN AUTOMOBILES
Component location diagrams for most Chevrolet G3500 VAN cars and light trucks sold in the U.S. from 1990+.
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![]() Components on diagram: |
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WIRING DIAGRAMS FOR Chevrolet G3500 VAN AUTOMOBILES
OEM drawn wiring diagrams for most Chevrolet G3500 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 G3500 VAN AUTOMOBILES
OEM TSB listings for most Chevrolet G3500 VAN cars and light trucks sold in the U.S. from 1985+.
Document: INFORMATION ON DIESEL FUEL ADDITIVES Vehicle: 1998 Chevrolet G3500 VAN 6.5 V8 DIESEL Auto Systems: |
Document: GM GUIDELINES FOR CHANGING TIRE AND WHEEL ASSEMBLIES Vehicle: 1998 Chevrolet G3500 VAN 5.7 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR Chevrolet G3500 VAN AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Chevrolet G3500 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 G3500 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 G3500 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 G3500 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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