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1991 Toyota MR2 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 1991 Toyota MR2 AUTOMOBILES
Toyota -> Component Replacement & Adjustment -> A/C SWITCH, REPLACE -> CAMRY -> COROLLA -> LAND CRUISER, PASEO & TERCEL -> Lever Type Switch -> PICKUP & 4RUNNER -> Push Type Switch
Vehicle: 1991 Toyota MR2 2.0 L4 GAS
CAMRY
Lever Type Switch
- Using suitable screwdriver, pry switch from clips.
- Disconnect switch electrical connector.
- Remove A/C switch.
- Reverse procedure to install.
Push Type Switch
- Remove heater control assembly.
- Disconnect switch electrical connector.
- Remove A/C switch.
- Reverse procedure to install.
COROLLA
- Disconnect battery ground cable.
- Remove center cluster from instrument panel.
- Disconnect electrical connector ...
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BRAKE SERVICE PROCEDURES FOR 1991 Toyota MR2 AUTOMOBILES
TOYOTA, POWER BRAKE UNITS -> TROUBLESHOOTING
Vehicle: 1991 Toyota MR2 2.0 L4 GAS
Refer to "Hydraulic Brakes" for...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Toyota MR2 AUTOMOBILES
Toyota -> Fuel Filter Scheduled Maintenance -> 1986-06 Models -> Normal Service -> Severe Service
Vehicle: 1991 Toyota MR2 2.0 L4 GAS
Normal Service
Service as r...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Toyota MR2 AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1991 Toyota MR2 2.0 L4 GAS
The hub bearing may be damaged if it is subjected to vehicle weight, such as when moving vehicle with driveshaft removed. Therefore, if it is absolutely necessary to place vehicle weight on hub bearing, first support it with hub support tool No. 09608-16041, or equivalent.
- Raise and support vehicle.
- Remove engine undercovers, then drain transaxle oil.
- Remove cotter pin from axle shaft, then locknut cap.
- With emergency brake applied, remove axle shaft nut.
- With brake applied, remove six rear driveshaft to transaxle side gear shaft attaching nuts, then raise and support rear of ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Toyota MR2 AUTOMOBILES
Alternator, Replace
Vehicle: 1991 Toyota MR2 2.2 L4 GAS
- Disconnect battery ground cable from negative terminal of battery. Turn ignition switch to LOCK. Wait at least 20 seconds before proceeding with work.
- Loosen pivot bolt and adjusting lock bolt.
- Loosen adjustin...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Toyota MR2 AUTOMOBILES
Toyota -> Malfunction Indicator Lamp (MIL) ->
Vehicle: 1991 Toyota MR2 2.2 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 1991 Toyota MR2 AUTOMOBILES
Radiator, Replace
Vehicle: 1991 Toyota MR2 2.2 L4 GAS
- Disconnect battery ground cable.
- Remove front luggage under covers.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Remove seven clips and radiator support seal.
- Remove two bolts and hood lock.
- Disconnect radiator cooling fan connectors.
- On models with air conditioning, disconnect water temperature sensor connector.
- On models without air con...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Toyota MR2 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 Toyota MR2 2.2 L4 GAS
- Loosen pivot bolt and adjusting lock nut on alternator.
- Loosen dri...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Toyota MR2 AUTOMOBILES
Component location diagrams for most 1991 Toyota MR2 cars and light trucks sold in the U.S. from 1990+.
Theft Deterrent System Components Diagram for 1991 Toyota MR2 2.2 L4 GAS Components on diagram: |
Passenger Compartment Connectors Diagram for 1991 Toyota MR2 2.0 L4 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1991 Toyota MR2 AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Toyota MR2 cars and light trucks sold in the U.S.
1991 Toyota MR2 2.0 L4 GAS Wiring Diagram Components on diagram: |
1991 Toyota MR2 2.2 L4 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Toyota MR2 AUTOMOBILES
OEM TSB listings for most 1991 Toyota MR2 cars and light trucks sold in the U.S. from 1985+.
Document: REPLACEMENT CERTIFICATION LABELS - REVISED Vehicle: 1991 Toyota MR2 2.2 L4 GAS Auto Systems: |
Document: PERMANENT-TYPE PROTECTIVE WAX COATINGS Vehicle: 1991 Toyota MR2 2.2 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Toyota MR2 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Toyota MR2 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 MR2 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 MR2 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 MR2 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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