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1990 Ford Aerostar CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Ford 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 1990 Ford Aerostar AUTOMOBILES
A/C & Cooling System Maintenance -> Ford Motor Co. -> 1990-93 Ford Aerostar, Bronco II & Explorer & 1990-94 Ranger
Vehicle: 1990 Ford Aerostar 4.0 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Ford Aerostar AUTOMOBILES
POWER BRAKE UNITS, FORD -> Bendix Hydro-Boost Brake Booster -> DESCRIPTION
Vehicle: 1990 Ford Aerostar 3.0 V6 GAS
This brake booster is a hydraulically operated booster, receiving its power from the power steering system, Fig. . The power steering pump provides fluid pressure to operate both the brake booster and the power steering gear. This fluid pressure provides a variable power assist that is regulated by brake pedal applic...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Ford Aerostar AUTOMOBILES
Ford Motor Co. Light Trucks, SUVs & Vans -> Fuel Shutoff Switch Location -> 1986-97 Aerostar
Vehicle: 1990 Ford Aerostar 3.0 V6 GAS
The inertia switch is located ...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Ford Aerostar AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble -> Double Cardan -> Single Cardan, Flange Yoke -> Single Cardan, Slip Yoke
Vehicle: 1990 Ford Aerostar 3.0 V6 GAS
Single Cardan, Slip Yoke
Disassemble
Do not, under any circumstance, clamp the shaft in the jaws of a vise or similar holding fixture. Denting or localizing fracture can result, causing shaft failure during vehicle operation. Place the shaft on a suitable workbench. Do not damage the tube. If components are not marked and installed incorrectly, driveline imbalance can occur.
- Index-mark the shaft components.
- Remove and discard all four snap rings.
- Clamp bearing cup removal tool No. 205-086 or equivalent in a vise.
- If necessary, use a pair of pliers to remove a bearing cup t...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Ford Aerostar AUTOMOBILES
Starter, Replace
Vehicle: 1990 Ford Aerostar 3.0 V6 GAS
- Disconnect battery ground cable.
- Raise and support vehicle, if required.
- Disconnect electrical connector or solenoid relay wire from starter motor.
- Remove starter motor attachi...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Ford Aerostar AUTOMOBILES
Ford Motor Co. Trucks -> Rear Load Leveling (CHECK SUSP) ->
Vehicle: 1990 Ford Aerostar 4.0 V6 GAS
The CHECK SUSP indicator lights when there is a fault of the rear load ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Ford Aerostar AUTOMOBILES
Radiator, Replace
Vehicle: 1990 Ford Aerostar 4.0 V6 GAS
- Disconnect negative battery cable at battery.
- Drain cooling system into a suitable container.
- Detach radiator hose at bottom right of radiator and position aside.
- Remove upper radiator hose and position aside.
- Disconnect transmission cooler lines ...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Ford Aerostar AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Ford Aerostar 4.0 V6 GAS
- Raise tensioner by turning counterclockwise, then remove belt.
- Install new be...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Ford Aerostar AUTOMOBILES
Component location diagrams for most 1990 Ford Aerostar cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 1990 Ford Aerostar AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Ford Aerostar cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Ford Aerostar AUTOMOBILES
OEM TSB listings for most 1990 Ford Aerostar cars and light trucks sold in the U.S. from 1985+.
Document: MERCON ATF IS BEING REPLACED BY MERCON V AS A SERVICE FLUID FOR SOME MANUAL TRANSMISSIONS Vehicle: 1990 Ford Aerostar 3.0 V6 GAS Auto Systems: |
Document: MERCON ATF IS BRING REPLACED BY MERCON V ATF AS A SERVICE FLUID Vehicle: 1990 Ford Aerostar 3.0 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Ford Aerostar AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Ford Aerostar 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 Ford Aerostar 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 Ford Aerostar 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 Ford Aerostar 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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