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1994 Chevrolet Astro CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW
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- A/C & Heater Service
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- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1994 Chevrolet Astro 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 Astro automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1994 Chevrolet Astro AUTOMOBILES
Air Bag System Precautions -> General Motors Corp. -> Arming -> Light Trucks & Vans -> Passenger Cars
Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS
Passenger Cars
Reverse disarming procedures to arm the Supplemental Restraint System, noting the following:
- Ensure all disconnected SRS electrical connectors are securely connected and routed.
- Install all removed fuses in proper locations.
- From a safe position at sides of or below air bag module, Turn ignition switch to ON position and observe Air Bag or SRS warning lamp.
- On all models except Prizm and 1990 Corvette, warning lamp should flash seven to nine times, then go off.
- On Prizm models, warning lamp should light for six seconds,...
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BRAKE SERVICE PROCEDURES FOR 1994 Chevrolet Astro AUTOMOBILES
Anti-lock Brakes -> Rear Wheel Anti-Lock Brake System -> Diagnosis & Testing -> 1992 -> 1993 S & T SERIES -> 1993-94 C & K SERIES & 1994 S & T SERIES -> 1993-95 -> 1995 S & T SERIES -> Accessing Diagnostic Trouble Codes -> C & K Series -> Clearing Diagnostic Trouble Codes -> Diagnostic Trouble Code Interpretation -> RWAL System -> S & T Series -> ZPRWAL System
Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS
Accessing Diagnostic Trouble Codes
1992
Diagnostic trouble codes can be accessed by connecting a TECH 1 or equivalent scan tool or by manually grounding the Assembly Line Diagnostic Link (ALDL) connector. To manually ground the ALDL connector, connect a jumper wire between terminals A and H, Fig. , and observe the flashes of the brake warning lamp. Note the following when performing the Diagnostic Circuit Check to access diagnostic trouble codes:
- When terminals are jumped, count number of short flashes starting from initial long flash, include long flash in count.
- The count se...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1994 Chevrolet Astro AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1992-05 Astro & Safari Vans -> Normal Service -> Severe Service
Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS
Normal Service
Replace ever...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1994 Chevrolet Astro AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS
Never clamp propeller shaft tubing in a vise. Clamping could dent or deform the tube causing an imbalance or unsafe condition. Always clamp on one of the yokes and support the shaft horizontally. Avoid damaging the slip yoke sealing surface. Nicks may damage the bushing or cut the lip seal.
Disassemble
- Support propeller shaft in a line horizontal with table of a press.
- Mark propeller shaft in order to show which end connects to transmission and which end goes to rear axle.
- On models equipped with external snap ring retainers, proceed as follows:
- Disassemble snap rings by ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1994 Chevrolet Astro AUTOMOBILES
Alternator, Replace
Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS
- Disconnect battery ground cable.
- Remove air cleaner.
- Remove drive belt.
- Disconnect regulator electrical connector.
- Remove alternator front mounting bolts.
- Remove alternator rear mounting bolt.
- Remove alternat...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1994 Chevrolet Astro AUTOMOBILES
General Motors Corp./Saturn Trucks -> Check Engine/Service Engine Soon Indicator Lamp -> Electronic Engine Controls Or Electronic Fuel Injection Except Tracker
Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS
The Check Engine/Service Engine Soon Lamp should light when the ignition is turned On. When the engine is started, the lamp should go off. If the lamp remains on for 10 seconds or constantly after the engine is started, the self diagnosis system has detected a problem and has stored a code in the system Electronic Control Module (ECM) or Powertrain Control Module (PCM). After diagnosis and repair, the ECM/PCM memory can be cleared of codes either by using a scan tool (OBD II systems) or by disconnecting the battery ground ca...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1994 Chevrolet Astro AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp from radiator.
- Remove radiator outlet hose from radiator.
- Reposition hose clamp from coolant pump.
- Remove radiator outlet hose from coolant pump and from vehicle.
- Reverse procedure...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1994 Chevrolet Astro AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1994 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 1994 Chevrolet Astro AUTOMOBILES
Component location diagrams for most 1994 Chevrolet Astro cars and light trucks sold in the U.S. from 1990+.
 Steering Column Diagram for 1994 Chevrolet Astro 4.3 V6 GASComponents on diagram: |
 Cruise Control Module Location Diagram for 1994 Chevrolet Astro 4.3 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1994 Chevrolet Astro AUTOMOBILES
OEM drawn wiring diagrams for most 1994 Chevrolet Astro cars and light trucks sold in the U.S.
 1994 Chevrolet Astro 4.3 V6 GAS Wiring DiagramComponents on diagram: |
 1994 Chevrolet Astro 4.3 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1994 Chevrolet Astro AUTOMOBILES
OEM TSB listings for most 1994 Chevrolet Astro cars and light trucks sold in the U.S. from 1985+.
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Document: Car and Truck Fix It Right the First Time Issues Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS Auto Systems: |
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Document: Bumps or Rust Colored Spots in Paint Due to Rail or Iron Dust Vehicle: 1994 Chevrolet Astro 4.3 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1994 Chevrolet Astro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1994 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 1994 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 1994 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 1994 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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