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1990 Volkswagen FOX CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Volkswagen REPAIR SHOPS DON'T WANT YOU TO KNOW
Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!Select Section
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

BRAKE SERVICE PROCEDURES FOR 1990 Volkswagen FOX AUTOMOBILES
DISC BRAKES -> Girling Single Piston w/Dual Mounting Bolts, Rear -> CALIPER SERVICE -> OVERHAUL
Vehicle: 1990 Volkswagen FOX GL 1.8 L4 GAS
OVERHAUL
Refer to Fig. when overhauling caliper.
- Secure caliper in a suitable soft-jawed vise, then remove piston from bore by turning counterclockwise with a 12 mm allen wrench on Corrado and Passat models or caliper tool 3131 or equivalent on models except Corrado and Passat.
- Pry piston seals from groove, being careful...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Volkswagen FOX AUTOMOBILES
Volkswagen -> Component Locations -> 1985-06 Beetle, Cabrio, Corrado, EuroVan, Fox, Golf, GTI, Jetta, Passat (Less 2.8L V6), 1982-88 Quantum, 1980-91 Vanagon & 1989-92 Cabriolet w/Gasoline Engines
Vehicle: 1990 Volkswagen FOX 1.8 L4 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Volkswagen FOX AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1990 Volkswagen FOX GL Sport 1.8 L4 GAS
- With vehicle on ground, remove drive axle retaining nut from wheel assembly.
- Raise and support vehicle.
- Remove drive axle to transmission drive flange attaching bolts.
- On models equipped with manual transmission,mark position of ball joint to right and l...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Volkswagen FOX AUTOMOBILES
Alternator, Replace
Vehicle: 1990 Volkswagen FOX GL 1.8 L4 GAS
- Obtain audio coded anti-theft code, then disconnect battery ground cable.
- Disconnect wiring connectors from alternator.
- Remove serpentine drive belt as outlined in the appropriate engine section.
- Remove alternator mounting bolts.
- Remove serpentine belt pulley using holder tool...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Volkswagen FOX AUTOMOBILES
Volkswagen -> Anti-Lock Brake System (ABS) Warning Lamp ->
Vehicle: 1990 Volkswagen FOX GL 1.8 L4 GAS
The anti-lock warning lamp is used to warn of an ABS fault. The lamp input monitors the condition of the system. The lamp will be lit during engine start-up, but should go out when the self-diag...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Volkswagen FOX AUTOMOBILES
Radiator, Replace
Vehicle: 1990 Volkswagen FOX 1.8 L4 GAS
- Drain coolant into a suitable container.
- Remove front bumper.
- Disconnect coolant hoses from radiator.
- Disconnect harness connectors from coolant fan control, thermal switch an...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Volkswagen FOX AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Volkswagen FOX GL Sport 1.8 L4 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Volkswagen FOX AUTOMOBILES
Component location diagrams for most 1990 Volkswagen FOX cars and light trucks sold in the U.S. from 1990+.
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WIRING DIAGRAMS FOR 1990 Volkswagen FOX AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Volkswagen FOX cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Volkswagen FOX AUTOMOBILES
OEM TSB listings for most 1990 Volkswagen FOX cars and light trucks sold in the U.S. from 1985+.
Document: BATTERY, DISCHARGED, DIAGNOSIS FOR EXCESSIVE STATIC CURRENT DRAW - REVISED Vehicle: 1990 Volkswagen FOX 1.8 L4 GAS Symptoms: |
Document: EXHAUST HEAT SHIELD, REPLACEMENT GUIDELINES - REVISED Vehicle: 1990 Volkswagen FOX 1.8 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Volkswagen FOX AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Volkswagen FOX 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 Volkswagen FOX 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 Volkswagen FOX 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 Volkswagen FOX 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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