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1991 Toyota Land Cruiser 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!Select Section
- 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
A/C & HEATER SERVICE PROCEDURES FOR 1991 Toyota Land Cruiser AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1991 Toyota Land Cruiser 4.0 L6 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Toyota Land Cruiser AUTOMOBILES
TOYOTA, POWER BRAKE UNITS -> DESCRIPTION
Vehicle: 1991 Toyota Land Cruiser 4.0 L6 GAS
When the brake pedal is depressed, a vacuum builds up in the booster which amplifies the pedal force, pressing on the piston in the master cylinder. The piston raises the hydraulic pressure in the cylinder. This hydr...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Toyota Land Cruiser AUTOMOBILES
Toyota -> Fuel Filter Replacement -> Land Cruiser, Pickup, Previa, Sequoia, Tacoma, Tundra, T100, Truck & Van -> Fuel System Pressure Relief -> Models Less Union Bolt Fuel Line Connection -> Models w/Union Bolt Fuel Line Connection -> Removal & Installation
Vehicle: 1991 Toyota Land Cruiser 4.0 L6 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...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Toyota Land Cruiser AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1991 Toyota Land Cruiser 4.0 L6 GAS
- Raise and support vehicle, then remove front wheels as necessary and front fender apron seal.
- Remove cotter pin, locknut cap and locknut from axle spline
- Drain transmission fluid, then using a suitable puller, disconnect tie rod end from steering knuckle.
- Disconnect stabilizer bar link from lower control arm.
- Disconnect ball joint from steering knuckle.
- On models with constant velocity type inner joints, using paint or chalk, place match marks on driveshaft inner joint and side gear shaft or center driveshaft, then proceed as follows:
- Have an assistant apply brakes to prevent a...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Toyota Land Cruiser AUTOMOBILES
Alternator, Replace
Vehicle: 1991 Toyota Land Cruiser 4.0 L6 GAS
- Disconnect battery ground cable from negative terminal of battery.
- Disconnect connector and wire from alternator.
- Remove drive belts.
- Remove bolt, ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Toyota Land Cruiser AUTOMOBILES
Toyota -> Automatic Transmission Oil Temperature Warning Lamp ->
Vehicle: 1991 Toyota Land Cruiser 4.0 L6 GAS
This lamp will be illuminated when automatic transmission or transfer case fluid temperature exceeds 302°F. If the lamp lights, allow vehicle to operate at idle speed until fluid temperature falls below 248°F; t...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Toyota Land Cruiser AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1991 Toyota Land Cruiser 4.0 L6 GAS
Inlet
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at heater core.
- Remove hose from heater core.
- Reposition hose clamp at water outlet.
- Remove hose from water outlet.
- Remove hose from vehicle.
- Reverse procedure t...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Toyota Land Cruiser AUTOMOBILES
Component location diagrams for most 1991 Toyota Land Cruiser cars and light trucks sold in the U.S. from 1990+.
Engine Compartment Main Harness Connectors & Ground Points Diagram for 1991 Toyota Land Cruiser 4.0 L6 GAS Components on diagram: |
I/P Connectors Diagram for 1991 Toyota Land Cruiser 4.0 L6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1991 Toyota Land Cruiser AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Toyota Land Cruiser cars and light trucks sold in the U.S.
1991 Toyota Land Cruiser 4.0 L6 GAS Wiring Diagram Components on diagram: |
1991 Toyota Land Cruiser 4.0 L6 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Toyota Land Cruiser AUTOMOBILES
OEM TSB listings for most 1991 Toyota Land Cruiser cars and light trucks sold in the U.S. from 1985+.
Document: SEAT BELT TONGUE PLATE STOPPER REPLACEMENT - REVISED Vehicle: 1991 Toyota Land Cruiser 4.0 L6 GAS Auto Systems: |
Document: REPLACEMENT CERTIFICATION LABELS - REVISED Vehicle: 1991 Toyota Land Cruiser 4.0 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Toyota Land Cruiser AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Toyota Land Cruiser 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 Land Cruiser 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 Land Cruiser 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 Land Cruiser 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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