Complete overhaul, component removal/installation, timing belt replacement, cylinder head service, piston/ring inspection, crankshaft/rod bearing service
Engine Electrical:
Ignition system, fuel injection system, starting and charging system, sensors and actuators, ECU diagnosis, wiring diagrams
Diagnostic trouble codes (DTCs), symptom-based troubleshooting charts, electrical system diagnostics
Repair Procedures:
Step-by-step instructions for all major component repairs and replacements
Diagnostic Procedures:
Use of scan tools, multimeter testing, pressure testing, circuit tracing
Alignment Procedures:
Front and rear wheel alignment specifications and adjustment procedures
Torque Specifications:
Detailed torque values for all critical fasteners
Technical Depth
Depth:
Comprehensive (from basic maintenance to complete engine rebuilds and complex diagnostics)
Detail Level:
Expert-level, factory-accurate procedures and specifications
📊 Manual Specifications
File Format
File Type:
PDF
Searchable:
Yes (text-searchable)
Printable:
Yes
Print Quality
Quality:
High-resolution, clear diagrams and text
Binding Type
Binding:
N/A (Digital Format)
Paper Type
Paper:
N/A (Digital Format)
⚙️ Engine Specifications
Primary Engine
Engine Code 1:
EJ251
Engine Type 1:
2.5L SOHC EJ-Series Boxer 4-Cylinder
Displacement 1:
2457 cc (149.9 cu in)
Bore X Stroke 1:
99.5 mm x 79.0 mm (3.92 in x 3.11 in)
Compression Ratio 1:
9.7:1
Horsepower 1:
165 hp @ 5600 rpm
Torque 1:
162 lb-ft @ 4000 rpm
Fuel System
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded Gasoline (87 Octane Recommended)
Engine Alternatives
Engine Code 2:
EJ204 (JDM)
Engine Type 2:
2.0L DOHC EJ-Series Boxer 4-Cylinder
Horsepower 2:
Approx. 140-155 hp (Varies by market)
🔧 Transmission
Standard
Transmission Type Standard:
5-Speed Manual
Optional
Transmission Type Optional:
4-Speed Automatic (with overdrive)
Features
AWD System:
Active All-Wheel Drive (AWD)
Manual Gear Ratios:
Detailed in manual (specific ratios vary by model)
Automatic Features:
Electronic control, Sportshift functionality (on some models)
Fluid Specifications
Manual Transmission Fluid:
API GL-5, SAE 75W-90 (Subaru Genuine Gear Oil recommended)
Automatic Transmission Fluid:
Dexron III or equivalent (Subaru Genuine ATF recommended)
📐 Dimensions
Exterior
Length:
Approx. 187.4 inches (Sedan)
Width:
Approx. 68.5 inches
Height:
Approx. 55.7 inches (Sedan)
Wheelbase:
Approx. 104.1 inches
Ground Clearance:
Approx. 6.1 inches
Weights
Curb Weight:
Approx. 3100-3300 lbs (Varies by trim and transmission)
Gross Vehicle Weight Rating:
Refer to vehicle VIN plate
Cargo
Trunk Volume:
Approx. 14.4 cu ft (Sedan)
🛡️ Safety Features
Ratings
NHTSA Frontal Impact:
Good (for both driver and passenger)
NHTSA Side Impact:
Acceptable (driver), Good (passenger) - varies by specific test year
Active Features
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Optional
Passive Features
Airbags:
Front airbags (driver and passenger), side airbags (optional on some trims)
Seatbelts:
Three-point seatbelts with pretensioners
Child Seat Anchors:
LATCH system
💡 Technology Features
Infotainment
Audio System:
Standard AM/FM/CD player, optional premium audio systems available
Display:
Basic digital display for climate and audio, no central touchscreen
Driver Assistance
ABS:
Standard
Cruise Control:
Standard
Connectivity
Bluetooth:
Not standard, aftermarket solutions available
Usb:
Not standard, aftermarket solutions available
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,750 - 7,500 miles or 3-6 months (depending on driving conditions and oil type used, refer to manual for specifics)
Timing Belt Replacement:
Every 90,000 - 105,000 miles or 7-10 years (critical for EJ engines, refer to manual for exact interval)
Coolant Replacement:
Every 30,000 - 60,000 miles or 2-4 years
Transmission Fluid Change Auto:
Every 30,000 - 60,000 miles
Transmission Fluid Change Manual:
Every 60,000 - 100,000 miles
Fluid Specifications
Engine Oil Capacity:
4.7 US quarts (4.4 liters) with filter (for 2.5L)
Engine Oil Viscosity:
5W-30 or 5W-40 (API certified, synthetic blend or full synthetic recommended)
Coolant Type:
Subaru Super Coolant or equivalent (50/50 mix with distilled water)
Known Issues
Head Gaskets:
While less prone than earlier generations, head gasket leaks can still occur, especially if maintenance is neglected. The manual details diagnostic and replacement procedures.
Automatic Transmission:
Some transmissions may experience shifting issues or solenoid failures. The manual covers diagnosis and repair for these.
Suspension Components:
Wear on bushings and struts is common due to mileage; the manual provides replacement guides.
Rear Differential Leaks:
Occasional seal leaks can occur.
📚 Vehicle History
Brand Heritage
Heritage:
Subaru is known for its distinctive boxer engines and Symmetrical All-Wheel Drive system, originating from Fuji Heavy Industries.
Model Evolution
Generation:
This is the fourth generation of the Subaru Legacy (1998-2004).
Design Changes:
The fourth generation introduced a more aerodynamic design, a refined interior, and updated powertrains compared to the previous generation.
Production
Assembly Location:
Gunma, Japan
🏆 Awards & Recognition
Recognitions
IIHS Top Safety Pick:
The 2000 Legacy generally performed well in IIHS crash tests, often earning 'Good' ratings.
Consumer Reports:
Often praised for AWD capability and reliability, though some years had noted issues with head gaskets or transmissions.
Certifications
Emissions Certification:
Meets EPA and California Air Resources Board (CARB) emissions standards for the model year
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