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1990 Toyota Corolla CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Toyota 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 Toyota Corolla AUTOMOBILES
A/C & Cooling System Maintenance -> Toyota -> 1990-98 Avalon, Camry, Celica, Corolla, Cressida, MR2, Paseo, Supra & Tercel
Vehicle: 1990 Toyota Corolla DLX 1.6 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Toyota Corolla AUTOMOBILES
TOYOTA, POWER BRAKE UNITS -> BRAKE BOOSTER OPERATIONAL TEST -> AIR TIGHTNESS CHECK -> OPERATING CHECK
Vehicle: 1990 Toyota Corolla SR5 1.6 L4 GAS
OPERATING CHECK
- Depress brake pedal several times with engine stopped, and ensure that pedal reserve distance has no change, Fig. .
- Depress brake pedal and start engine. If pedal drops slightly, operation is normal.
AIR TIGHTNESS CHECK
- Start engine and stop after one or two minutes.
- Depress brake pedal sever...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Toyota Corolla AUTOMOBILES
Toyota -> Fuel Filter Replacement -> 1980-97 Corolla & Matrix -> Fuel System Pressure Relief -> Models Less Union Bolt Fuel Line Connection -> Models w/Union Bolt Fuel Line Connection -> Removal & Installation
Vehicle: 1990 Toyota Corolla SR5 ALL Trac 1.6 L4 GAS
Fuel System Pressure Relief
Models w/Union Bolt Fuel Line Connection
- Obtain the vehicle owners radio theft protection code prior to disconnecting the battery ground cable, if equipped.
- Disconnect the battery ground cable.
- Remove the fuel fill cap to release fuel tank pressure.
- Place a shop towel over the union bolt at top of fuel filter. Slowly loosen the union bolt allowing fuel pressure to bleed down.
- Whenever the union bolt is loosened to relieve fuel system pressure, always replace the bolt gasket.
Models Less Union Bolt Fuel Line Connection
- Obtain the vehicle owners radio ...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Toyota Corolla AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1990 Toyota Corolla 1.6 L4 GAS
- Raise and support vehicle, then remove wheels and engine undercover.
- Drain transmission fluid into a suitable container.
- Remove cotter pin and lock cap. While applying brakes, remove axle spline nut.
- Disconnect tie rod end from steering knuckle, then lower ball joint from lower control arm.
- Remove brake caliper and suspend so as not to twist or stretch brake line.
- Remove brake disc if necessary, then using suitable puller, remove driveshaft outer joint from axle hub.
- To remove driveshafts from transaxle, gently tap with hammer and brass drift to release shaft, or u...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Toyota Corolla AUTOMOBILES
Starter, Replace
Vehicle: 1990 Toyota Corolla LE 1.6 L4 GAS
- Disconnect battery ground cable from negative terminal of battery.
- Remove air cleaner assembly.
- Remove two starter mounting bolts.
- Remove nut and disconnect battery cable from mag...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Toyota Corolla AUTOMOBILES
Toyota -> Malfunction Indicator Lamp (MIL) ->
Vehicle: 1990 Toyota Corolla DLX 1.6 L4 GAS
On some models equipped with OBD II, the MIL will also illuminate if the fuel tank filler cap is not properly tightened. Tighten fuel tank filler cap until it clicks.
The MIL should light when the ignition switch is placed in the On position without starting the engine. When the engine is started, the lamp should go out. If it remains lit, a fault has been detected by the diagnostic system and has logged a diagnostic trouble code. If the fault does not occur again within three trips, the lamp will go out but a diagnostic tro...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Toyota Corolla AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1990 Toyota Corolla GTS 1.6 L4 GAS
Lower
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at radiator outlet.
- Remove hose from radiator.
- Reposition hose clamp at water inlet pipe.
- Remove hose from water inlet pipe.
- Remove hose from vehicle.
- Reverse proced...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Toyota Corolla AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Toyota Corolla DLX 1.6 L4 GAS
- Loosen alternator pivot bolt.
- Loosen alternator adjuster lock bolt.
- Loosen adjusting bolt to remove tension from bel...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Toyota Corolla AUTOMOBILES
Component location diagrams for most 1990 Toyota Corolla cars and light trucks sold in the U.S. from 1990+.
Engine Compartment Connector Locations Diagram for 1990 Toyota Corolla SR5 ALL Trac 1.6 L4 GAS Components on diagram: |
Body Connector Locations Diagram for 1990 Toyota Corolla 1.6 L4 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1990 Toyota Corolla AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Toyota Corolla cars and light trucks sold in the U.S.
1990 Toyota Corolla 1.6 L4 GAS Wiring Diagram Components on diagram: |
1990 Toyota Corolla SR5 1.6 L4 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Toyota Corolla AUTOMOBILES
OEM TSB listings for most 1990 Toyota Corolla cars and light trucks sold in the U.S. from 1985+.
Document: SEAT BELT TONGUE PLATE STOPPER REPLACEMENT - REVISED Vehicle: 1990 Toyota Corolla 1.6 L4 GAS Auto Systems: |
Document: REPLACEMENT CERTIFICATION LABELS - REVISED Vehicle: 1990 Toyota Corolla 1.6 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Toyota Corolla AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Toyota Corolla 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 Toyota Corolla 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 Toyota Corolla 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 Toyota Corolla 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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