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1998 Chevrolet Astro CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1998 Chevrolet Astro AUTOMOBILES
Component Replacement & Adjustment -> Light Duty Trucks & Vans -> Thermostat, Replace -> Astro, Bravada, Safari, S & T Series -> C, G, K & P Series -> Diesel Engine -> Gasoline Engine -> Montana, Silhouette, Trans Sport & Venture -> Tracker
Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS
C, G, K & P Series
Gasoline Engine
- Remove engine cover, air cleaner and air inlet duct.
- Drain cooling system until radiator coolant level is below thermostat.
- Remove radiator hose at coolant outlet.
- Remove thermostat housing mounting bolts and ground wire.
- Remove thermostat housing, thermostat and gasket.
- Reverse procedure to install, noting the following:
- On all models except 7.4L engine, torque attaching bolts to 21 ft. lbs.
- On 7.4L engine, torque attaching bolts to 27 ft. lbs.
Diesel Eng...
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BRAKE SERVICE PROCEDURES FOR 1998 Chevrolet Astro AUTOMOBILES
Power Brake Units -> Bendix Brake Booster -> Description
Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS
In order to properly service power brake systems, a thorough understanding of the power assist system 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.
Hydraulic assist units incorporate a basic open center spool valve, hydraulic cylinder and an accumulator assembly in a common housing. When the brake pedal is depressed, the hydraulic piston moves forward closing off fluid relief passages, the spool valve applies flui...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1998 Chevrolet Astro AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Component Locations -> 1985-05 Astro Van & Safari Van w/4.3L Fuel Injected Engine
Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1998 Chevrolet Astro AUTOMOBILES
DRIVESHAFT, Replace -> Front -> Rear
Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS
Front
The driveline components in this vehicle are factory system-balanced. System balance provides a smoother running driveline operation. Observe the position of all the driveline components. Accurately mark the relationship of the components before removal. These components include the propeller shafts, the drive axles, the pinion flanges, and the output shafts. All components must be reassembled in the exact relationship to each other as they were before removal. Follow the specifications, the torque values, and any measurements made prior to disassembly in order to maint...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1998 Chevrolet Astro AUTOMOBILES
Starter, Replace
Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS
Upon removal of starter, note if any shims are used. If shims are used, they should be installed in their original locations. After installation, if starter is noisy during cranking, remove one .015 inch double shim or add one .015 inch single shim to the outer bolt. If starter makes a high pitched whine after firing, add .015 inch double shims until noise ceases.
- Disconnect battery ground cable.
- R...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1998 Chevrolet Astro AUTOMOBILES
General Motors Corp./Saturn Trucks -> Check Fuel Cap Lamp ->
Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS
The Check Fuel Cap Lamp will illuminate momentarily when the ignition switch is placed in the On position as a bulb check. I...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1998 Chevrolet Astro AUTOMOBILES
Radiator, Replace
Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS
- Drain coolant from radiator into a suitable container.
- Remove upper fan shroud and radiator hoses.
- Remove lower fan shroud.
- Disconnect and plug transmission flui...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1998 Chevrolet Astro AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS
- Insert a 1/2 inch breaker bar into the tensioner pulley.
- Rotate tensioner counterclockwise, then remove drive belt.
- Route drive belt over all pulleys except ...
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COMPONENT LOCATION DIAGRAMS FOR 1998 Chevrolet Astro AUTOMOBILES
Component location diagrams for most 1998 Chevrolet Astro cars and light trucks sold in the U.S. from 1990+.
Transmission Wiring Diagram for 1998 Chevrolet Astro 4.3 V6 GAS Components on diagram: |
LH Front Dash Wiring Diagram for 1998 Chevrolet Astro 4.3 V6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1998 Chevrolet Astro AUTOMOBILES
OEM drawn wiring diagrams for most 1998 Chevrolet Astro cars and light trucks sold in the U.S.
1998 Chevrolet Astro 4.3 V6 GAS Wiring Diagram Components on diagram: |
1998 Chevrolet Astro 4.3 V6 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1998 Chevrolet Astro AUTOMOBILES
OEM TSB listings for most 1998 Chevrolet Astro cars and light trucks sold in the U.S. from 1985+.
Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS Auto Systems: |
Document: New Website for AFIT, TPM, and VDR Updates Vehicle: 1998 Chevrolet Astro 4.3 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1998 Chevrolet Astro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1998 Chevrolet Astro 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 1998 Chevrolet Astro 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 1998 Chevrolet Astro 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 1998 Chevrolet Astro 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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