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1990 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
- Brake Service
- 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 1990 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 1990 Chevrolet Astro AUTOMOBILES
A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Chevrolet Astro & GMC Safari
Vehicle: 1990 Chevrolet Astro 4.3 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Chevrolet Astro AUTOMOBILES
DRUM BRAKES, GENERAL MOTORS -> General Information -> GENERAL INSPECTION -> ADJUSTER MECHANISM -> BACKING PLATE -> BRAKE DRUMS -> BRAKE LININGS & SPRINGS -> PARKING BRAKE CABLE
Vehicle: 1990 Chevrolet Astro 4.3 V6 GAS
BRAKE DRUMS
Any time the brake drums are removed for brake service, the braking surface diameter should be checked with a suitable brake drum micrometer at several points to determine if they are within the safe oversize limit stamped on the brake drum outer surface. If the braking surface diameter exceeds specifications, the drum must be replaced. If the braking surface diameter is within specifications, drums should be cleaned and inspected for cracks, scores, deep grooves, taper, out of round and heat spotting. If drums are cracked or heat spotted, they must be replaced. Gr...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Chevrolet Astro AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1987-91 Astro & Safari Vans -> Normal Service -> Severe Service
Vehicle: 1990 Chevrolet Astro 4.3 V6 GAS
Normal Service
Replace ever...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Chevrolet Astro AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1990 Chevrolet Astro 2.5 L4 GAS
Observe and accurately reference mark the positions of all driveline components relative to the propeller shaft prior to disassembly. These components include the propeller shafts, drive axles, pinion flange, inner axle shafts, etc. Reassemble all components in the exact relationship the components had to one another prior to disassembly. Follow the specifications, torque values and any measurement made prior to disassembly in order to maintain the factory system balance of the driveline components. System balance provides a smoother running driveline operation.
- Unlock ste...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Chevrolet Astro AUTOMOBILES
Starter, Replace
Vehicle: 1990 Chevrolet Astro 4.3 V6 GAS
- Disconnect battery ground cable.
- Remove starter braces or shields, if equipped.
- Remove wires from starter solenoid.
- Raise and support vehicle.
- Remove starter motor to engine attaching bolts and s...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Chevrolet Astro AUTOMOBILES
General Motors Corp./Saturn Trucks -> Change Trans Fluid Indicator ->
Vehicle: 1990 Chevrolet Astro 4.3 V6 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 1990 Chevrolet Astro AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1990 Chevrolet Astro 4.3 V6 GAS
Inlet
- Drain cooling system into a suitable container.
- Reposition hose clamp at heater core.
- Remove inlet heater hose from heater core.
- Reposition hose clamp at engine.
- Remove inlet heater hose from engine.
- Remove hose from vehicle.
- Reverse procedure to...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Chevrolet Astro AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 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 1990 Chevrolet Astro AUTOMOBILES
Component location diagrams for most 1990 Chevrolet Astro cars and light trucks sold in the U.S. from 1990+.
 Front Door Components Diagram for 1990 Chevrolet Astro 2.5 L4 GASComponents on diagram: |
 Behind LH Side Of I/P Diagram for 1990 Chevrolet Astro 2.5 L4 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1990 Chevrolet Astro AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Chevrolet Astro cars and light trucks sold in the U.S.
 1990 Chevrolet Astro 4.3 V6 GAS Wiring DiagramComponents on diagram: |
 1990 Chevrolet Astro 2.5 L4 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Chevrolet Astro AUTOMOBILES
OEM TSB listings for most 1990 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: 1990 Chevrolet Astro 2.5 L4 GAS Auto Systems: |
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Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1990 Chevrolet Astro 2.5 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Chevrolet Astro AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 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 1990 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 1990 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 1990 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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