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1991 Subaru Legacy CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Subaru 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
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- 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
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Subaru Legacy car and truck
repair procedures including Subaru 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 Subaru Legacy automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 Subaru Legacy AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1991 Subaru Legacy L 2.2 H4 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Subaru Legacy AUTOMOBILES
SUBARU, HYDRAULIC BRAKE SYSTEMS -> TROUBLESHOOTING
Vehicle: 1991 Subaru Legacy LS 2.2 H4 GAS
Refer to Fig. when troub...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Subaru Legacy AUTOMOBILES
Subaru -> Fuel Filter Replacement -> Except Justy w/Carbureted Engine -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 1991 Subaru Legacy LSI 2.2 H4 GAS
Fuel System Pressure Relief
- On Impreza, SVX, 1990-94 Legacy models,fold down the rear seat back, then remove the floor mat and access hole lid.
- On 1995-00 Legacy models, remove the rear seat cushion and seat back, then the floor mat and access hole lid.
- On all models, disconnect the fuel pump relay electrical connector.
- Start the engine and operate until it stalls.
- After the engine has stalled, crank the engine for at least 5 seconds.
- Place the ignition switch in Off position.
- Disconnect the battery ground cable.
- Connect the fuel pump electrical connector.
- On...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Subaru Legacy AUTOMOBILES
CV AXLE SHAFT, Replace -> Front -> Rear
Vehicle: 1991 Subaru Legacy LS 2.2 H4 GAS
Front
- Raise and support vehicle.
- Remove front wheels.
- Remove and discard axle nut.
- Remove stabilizer and transverse link from crossmember.
- Using a drift and hammer, remove and discard DOJ spring pin, Fig. .
- Remove DOJ from transmission spindle.
- Remove driveshaft assembly. If necessary, use puller tool No. 926470000 or equivalent.
- Inspect all parts for wear, damage or corrosion and replace as necessary.
- Reverse procedure to install, noting the following:
- Torque axle nut to 137 ft. lbs.
- Torque stabilizer link to 24 to 31 ft. lbs.
- Torque transverse link to 29 ft. lbs.
- Torque wheel lug nu...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Subaru Legacy AUTOMOBILES
Starter, Replace
Vehicle: 1991 Subaru Legacy LSI 2.2 H4 GAS
- Disconnect battery ground cable.
- Disconnect battery cable and solenoid wiring at sta...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Subaru Legacy AUTOMOBILES
Subaru -> Driver Control Center Differential Indicator Lamps ->
Vehicle: 1991 Subaru Legacy L 2.2 H4 GAS
The Driver Control Center Differential Indicator lamps show the current differential limiting factor of the center differential. The bottom indicator lamp will flash if a...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Subaru Legacy AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 Subaru Legacy LS SP 2.2 H4 GAS
Lower
- Disconnect ground cable from battery.
- Drain engine coolant completely into a suitable container.
- Disconnect radiator outlet hose from water pump.
- Disconnect radiator outlet hose from radiator.
- Remove outlet house from vehicle.
- Reverse procedure ...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Subaru Legacy AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 Subaru Legacy LSI 2.2 H4 GAS
- Remove drive belt cover. Wipe off any oil or water on belt and pulley.
- Loosen lockbolt on slider bolt.
- Loosen slider bolt.
- ...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Subaru Legacy AUTOMOBILES
Component location diagrams for most 1991 Subaru Legacy cars and light trucks sold in the U.S. from 1990+.
 Engine & Transmission Wiring Diagram for 1991 Subaru Legacy LS 2.2 H4 GASComponents on diagram: |
 Engine Compartment Bulkhead Wiring Diagram for 1991 Subaru Legacy Sport 2.2 H4 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1991 Subaru Legacy AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Subaru Legacy cars and light trucks sold in the U.S.
 1991 Subaru Legacy L 2.2 H4 GAS Wiring DiagramComponents on diagram: |
 1991 Subaru Legacy Sport 2.2 H4 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Subaru Legacy AUTOMOBILES
OEM TSB listings for most 1991 Subaru Legacy cars and light trucks sold in the U.S. from 1985+.
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Document: Turbocharger Mesh Filter Screen Vehicle: 1991 Subaru Legacy Sport 2.2 H4 GAS Auto Systems: |
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Document: REMANUFACTURED TRANSAXLES PROGRAM - REVISED Vehicle: 1991 Subaru Legacy L 2.2 H4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Subaru Legacy AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Subaru Legacy 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 Subaru Legacy 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 Subaru Legacy 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 Subaru Legacy 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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