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1991 Toyota Corolla CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Toyota 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!

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Toyota Corolla car and truck repair procedures including Toyota 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 Toyota Corolla automobile. Try the Automotix DIY solution today!
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Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Toyota mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1991 Toyota Corolla vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR 1991 Toyota Corolla AUTOMOBILES

Imported Cars & Light Trucks & Vans -> 1991-92 -> Evacuating System
Vehicle: 1991 Toyota Corolla 1.6 L4 GAS

The system must be completely discharged before evacuation. After discharging the system, keep low pressure gauge hose connected to low pressure test fitting and both manifold gauge valves closed.

  • Connect high pressure gauge hose to vacuum pump, Fig. .
  • Connect center manifold gauge hose to refrigerant source with tapping valve closed.
  • Open high and low side gauge valves with vacuum pump operating.
  • Continue to operate pump for approximately 15-20 minutes after low side gauge reaches 29 or more inches of vacuum. If the system has been left open for an...

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BRAKE SERVICE PROCEDURES FOR 1991 Toyota Corolla AUTOMOBILES

TOYOTA, POWER BRAKE UNITS -> TROUBLESHOOTING
Vehicle: 1991 Toyota Corolla DLX ALL Trac 1.6 L4 GAS

Refer to "Hydraulic Brakes" for...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 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: 1991 Toyota Corolla 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 1991 Toyota Corolla AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 1991 Toyota Corolla SR5 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 1991 Toyota Corolla AUTOMOBILES

Starter, Replace
Vehicle: 1991 Toyota Corolla DLX 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 1991 Toyota Corolla AUTOMOBILES

Toyota -> Air Bag Warning Lamp -> 1990-2002 Corolla
Vehicle: 1991 Toyota Corolla SR5 1.6 L4 GAS

The air bag system warning lamp is used to warn of a system fault. The lamp will light during engine start-up, but should go out when the self-diagnostic system determines that no faults are present. If the lamp remains lit, a fault in the air bag system is indicated. The air bag system must be diagnosed and repaired, then the following procedures can be used to reset the warning lamp.

  • Connect service wires to check con...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Toyota Corolla AUTOMOBILES

Radiator, Replace
Vehicle: 1991 Toyota Corolla GTS 1.6 L4 GAS

  • Disconnect battery ground cable.
  • Drain cooling system into a suitable container by loosening drain plug of radiator.
  • On models with automatic transaxle, disconnect two cooler hoses. Some oil will leak out, catch it in a suitable container. Plug hose to prevent oil from escaping.
  • On all ...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Toyota Corolla AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1991 Toyota Corolla LE 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 1991 Toyota Corolla AUTOMOBILES

Component location diagrams for most 1991 Toyota Corolla cars and light trucks sold in the U.S. from 1990+.

A/C System Components (Engine Compartment) Diagram for 1991 Toyota Corolla GTS 1.6 L4 GASA/C System Components (Engine Compartment) Diagram for 1991 Toyota Corolla GTS 1.6 L4 GAS

Components on diagram:
  • Vacuum Switching Valve
  • Condenser
  • Dual Pressure Switch
  • High Pressure Switch
  • I/P Harness Diagram for 1991 Toyota Corolla SR5 1.6 L4 GASI/P Harness Diagram for 1991 Toyota Corolla SR5 1.6 L4 GAS

    Components on diagram:
  • Remote Control Mirror Switch
  • Ignition Switch
  • Blower Resistor
  • Cruise Control Switch
  • A/C Amplifier
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    WIRING DIAGRAMS FOR 1991 Toyota Corolla AUTOMOBILES

    OEM drawn wiring diagrams for most 1991 Toyota Corolla cars and light trucks sold in the U.S.

    1991 Toyota Corolla LE 1.6 L4 GAS Wiring Diagram1991 Toyota Corolla LE 1.6 L4 GAS Wiring Diagram

    Components on diagram:
  • Door Lock Control Relay
  • Back Door Lock Switch
  • Driver's Door Lock Solenoid
  • Passenger's Door Lock Solenoid
  • 1991 Toyota Corolla LE 1.6 L4 GAS Wiring Diagram1991 Toyota Corolla LE 1.6 L4 GAS Wiring Diagram

    Components on diagram:
  • Tail Lamp Relay
  • Ignition Switch
  • Clock
  • Integration Relay
  • Light Control Switch
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    TECHNICAL SERVICE BULLETINS FOR 1991 Toyota Corolla AUTOMOBILES

    OEM TSB listings for most 1991 Toyota Corolla cars and light trucks sold in the U.S. from 1985+.

    Document: SEAT BELT TONGUE PLATE STOPPER REPLACEMENT - REVISED
    Vehicle: 1991 Toyota Corolla 1.6 L4 GAS

    Auto Systems:
  • Seats, Belts, Interior Trim, Carpets, Air Bags
  • Document: REPLACEMENT CERTIFICATION LABELS - REVISED
    Vehicle: 1991 Toyota Corolla 1.6 L4 GAS

    Auto Systems:
  • Identification, Models, Labels, Etc.
  • CLICK HERE TO GET FULL ACCESS TO 1991 Toyota Corolla TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1991 Toyota Corolla AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 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 1991 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 1991 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 1991 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

    CLICK HERE TO GET FULL ACCESS TO 1991 Toyota Corolla SPECIFICATIONS DATA!

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