Segment:
        
        
            Mid-size sedan and wagon, known for its standard All-Wheel Drive.
        
     
    
    
        
            Competitors 2001:
        
        
            Toyota Camry, Honda Accord, Nissan Altima, Mazda6.
        
     
    
    
        
            Standard AWD:
        
        
            Subaru's signature symmetrical All-Wheel Drive system as standard equipment.
        
     
    
        
            Durability:
        
        
            Reputation for robust engineering and longevity.
        
     
    
        
            Engine Layout:
        
        
            Horizontally opposed (Boxer) engine for a lower center of gravity.
        
     
 
    
    
    
        
            Engine Mechanical:
        
        
            Complete disassembly, inspection, repair, and reassembly of all engine components.
        
     
    
        
            Engine Management:
        
        
            Fuel injection, ignition system, emission controls, sensors, actuators, diagnostic trouble codes (DTCs).
        
     
    
        
            Transmission Manual:
        
        
            Service and repair procedures for manual transmissions, clutch system.
        
     
    
        
            Transmission Automatic:
        
        
            Service and repair procedures for automatic transmissions, torque converter, valve body.
        
     
    
        
            Drivetrain:
        
        
            All-Wheel Drive (AWD) system, differentials, drive axles, propeller shaft.
        
     
    
        
            Suspension:
        
        
            Front and rear suspension systems, springs, shock absorbers, control arms, wheel bearings.
        
     
    
        
            Steering:
        
        
            Power steering system, steering rack, column, linkages.
        
     
    
        
            Brakes:
        
        
            Hydraulic brake system, ABS, disc brake systems (front/rear), brake pads, rotors, calipers, master cylinder.
        
     
    
        
            Electrical System:
        
        
            12V battery, charging system (alternator), starting system (starter motor), lighting system, wiring diagrams.
        
     
    
        
            Body And Chassis:
        
        
            Body construction, frame, doors, hood, trunk lid, exterior trim, interior trim.
        
     
    
        
            HVAC:
        
        
            Heating, Ventilation, and Air Conditioning (HVAC) system, refrigerant, components.
        
     
    
        
            Restraints:
        
        
            Airbag system, seat belts.
        
     
    
        
            Diagnostics:
        
        
            Troubleshooting charts, diagnostic procedures, common issues, diagnostic trouble codes (DTCs).
        
     
    
    
        
            Routine Maintenance:
        
        
            Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection/replacement.
        
     
    
        
            Component Removal Installation:
        
        
            Step-by-step guides for removing and installing major and minor components.
        
     
    
        
            Troubleshooting:
        
        
            Systematic diagnosis of common and complex problems with diagnostic flowcharts.
        
     
    
        
            Specifications And Tolerances:
        
        
            Detailed torque specifications, clearances, and critical measurements for repairs.
        
     
    
        
            Wiring Diagrams:
        
        
            Comprehensive electrical wiring diagrams for all vehicle systems.
        
     
    
        
            Special Tools:
        
        
            Identification and usage instructions for specialized tools required for certain repairs.
        
     
    
    
        
            Depth:
        
        
            Factory-level repair and diagnostic procedures.
        
     
 
    
    
    
        
            Engine Code And Type 1:
        
        
            EJ251 (2.5L SOHC Flat-4)
        
     
    
        
            Engine Code And Type 2:
        
        
            EJ204 (2.0L DOHC Flat-4, primarily for export markets)
        
     
    
    
        
            Horsepower Ej251:
        
        
            165 hp @ 5,600 rpm
        
     
    
        
            Torque Ej251:
        
        
            166 lb-ft @ 4,000 rpm
        
     
    
    
        
            Horsepower Ej204:
        
        
            140 hp @ 6,000 rpm (approximate, varies by market)
        
     
    
        
            Torque Ej204:
        
        
            135 lb-ft @ 4,000 rpm (approximate, varies by market)
        
     
    
    
        
            Fuel Delivery:
        
        
            Electronic Fuel Injection (EFI)
        
     
    
        
            Fuel Type:
        
        
            Unleaded Gasoline
        
     
    
    
        
            Coolant Type:
        
        
            Subaru Super Coolant (or equivalent ethylene glycol-based coolant)
        
     
    
    
        
            Spark Plugs:
        
        
            NGK PFR5B (or equivalent)
        
     
 
    
    
    
        
            Transmission Type:
        
        
            5-Speed Manual Transmission
        
     
    
    
        
            Transmission Type:
        
        
            4-Speed Automatic Transmission
        
     
    
    
        
            AWD Operation:
        
        
            Symmetrical All-Wheel Drive with viscous coupling center differential.
        
     
    
        
        Fluid Specifications Auto
    
 
    
        
            Automatic Transmission Fluid:
        
        
            Subaru ATF-HP (or equivalent Dexron III/Mercon)
        
     
    
        
        Fluid Specifications Manual
    
 
    
        
            Manual Transmission Fluid:
        
        
            API GL-5, SAE 75W-90 Gear Oil
        
     
 
    
    
    
        
            NHTSA Front Impact:
        
        
            4/5 stars (driver and passenger)
        
     
    
        
            NHTSA Side Impact:
        
        
            N/A (not tested extensively or reported for this year)
        
     
    
    
        
            ABS:
        
        
            Standard Anti-lock Braking System (ABS).
        
     
    
        
            Traction Control:
        
        
            Not widely available as a standard feature on all trims.
        
     
    
    
        
            Airbags:
        
        
            Dual front airbags. Optional side airbags on some trims.
        
     
    
        
            Seatbelts:
        
        
            3-point height-adjustable front seat belts with pretensioners, rear seat belts.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 3,750 miles or 3.75 months (under severe driving conditions); 7,500 miles or 7.5 months (under normal driving conditions).
        
     
    
        
        Service Intervals Filters
    
 
    
        
            Air Filter Replacement:
        
        
            Every 15,000 miles or 15 months.
        
     
    
        
            Cabin Air Filter Replacement:
        
        
            Every 15,000 miles or 15 months (if equipped).
        
     
    
    
        
            Coolant Flush:
        
        
            Every 30,000 miles or 30 months.
        
     
    
        
        Service Intervals Spark Plugs
    
 
    
        
            Spark Plug Replacement:
        
        
            Every 60,000 miles (NGK Platinum).
        
     
    
    
        
            Engine Oil:
        
        
            API SJ, SAE 5W-30, API SL, SAE 0W-20 (preferred for fuel economy, but 5W-30 is common)
        
     
    
        
            Engine Oil Capacity:
        
        
            4.8 US quarts (with filter change)
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4.
        
     
    
        
            Power Steering Fluid:
        
        
            Subaru Genuine Power Steering Fluid (or equivalent DEXRON type).
        
     
    
    
        
            Head Gaskets:
        
        
            While the 2001 model year is generally better than earlier generations, head gasket leaks are still a potential concern for EJ-series engines.
        
     
    
        
            Rear Main Seal:
        
        
            Leaking rear main crankshaft seal is a common issue requiring transmission removal.
        
     
    
        
            Awt Clutch Wear:
        
        
            Some AWD systems, particularly automatics, may experience wear in the viscous coupling over high mileage.
        
     
    
        
            Evap Emissions System:
        
        
            Issues with the evaporative emission control system (e.g., charcoal canister, vent valve) can cause check engine lights.