Systems Covered:
General Information, Maintenance, Engine Mechanical, Engine Lubrication & Cooling Systems, Engine Fuel & Emission Control System, Accelerator Control, Fuel and Exhaust Systems, Clutch, Manual Transmission, Automatic Transmission, Propeller Shaft & Differential Carrier, Front Axle, Rear Axle, Front Suspension, Rear Suspension, Brake System, Steering System, Restraint System, Body and Trim, Heater, Air Conditioner, Electrical System, Wiring Diagrams
Engine Mechanical:
Cylinder head assembly, cylinder block assembly, crankshaft, pistons, connecting rods, camshafts, timing belt/chain (depending on specific EJ variant), valve train, engine mounts, flywheel/flexplate.
Engine Lubrication Cooling:
Oil pump, oil filter, oil pan, oil cooler, radiator, coolant reservoir, water pump, thermostat, cooling fan system, hoses, lines.
Engine Fuel Emission Control:
Fuel injectors, fuel pump, fuel filter, fuel tank, throttle body, mass airflow sensor (MAF), oxygen sensors (O2), catalytic converter, exhaust manifold, muffler, charcoal canister, EGR system (if applicable).
Drive Shaft Differential:
Propeller shaft, front drive shaft, rear drive shaft, front differential carrier, rear differential carrier, CV joints, axle shafts.
Suspension Steering:
Front suspension arm, front suspension strut, rear suspension control arm, rear shock absorber, coil springs, stabilizer bars (front and rear), steering column, steering rack, power steering pump, power steering hoses, wheel hub, wheel bearing.
Brake System:
Brake master cylinder, brake booster, brake caliper, brake pads, brake discs/rotors, brake lines, brake hoses, parking brake cable, ABS actuator, wheel speed sensors.
Restraint System:
Airbag modules (driver, passenger, side, curtain), seat belts, seat belt pretensioners, airbag sensors (front, side, rear), occupant detection systems, seat belt warning system.
Body Trim Interior:
Body panel repair, door glass, window regulators, power windows, door locks, mirrors, bumpers, fenders, hood, trunk lid, interior trim panels, headliner, seats, dashboard, instrument panel, console.
HVAC Electrical:
Heater core, A/C compressor, condenser, evaporator, blower motor, A/C control panel, refrigerant lines, HVAC system diagnostics, alternator, starter motor, battery, ignition system, lighting system (headlamps, tail lamps, interior lamps), combination meter, wiring harnesses, fuses, relays, sensors.
Procedures Included:
Service, repair, diagnosis, maintenance, troubleshooting, component replacement, system inspection, wiring repair
Procedures Included Engine:
Engine overhaul, cylinder head gasket replacement, timing belt replacement, oil pump inspection and replacement, water pump replacement, thermostat replacement, fuel injector cleaning and replacement, spark plug replacement, engine diagnostics and troubleshooting.
Procedures Included Transmission:
Manual transmission clutch replacement, transmission fluid change, automatic transmission fluid change and filter replacement, transmission removal and installation, torque converter replacement, drive shaft and axle shaft repair/replacement.
Procedures Included Brakes Suspension Steering:
Brake pad and rotor replacement, brake fluid flush, caliper and master cylinder replacement, suspension component replacement (shocks, struts, control arms, ball joints), wheel alignment specifications, power steering system repair, steering rack replacement.
Procedures Included Electrical HVAC:
Wiring harness repair, component testing (sensors, actuators), starter and alternator testing, battery charging and replacement, HVAC system diagnosis and repair, A/C system recharge and leak detection.
Technical Depth:
Complete FSM, suitable for technicians and advanced DIYers; covers everything from basic maintenance to in-depth diagnostics and major component overhauls
Service Intervals:
Oil changes: 3,750 miles (severe) or 7,500 miles (normal). Other intervals for air filter, cabin filter, spark plugs, coolant, brake fluid, transmission fluid, and differential fluid are detailed in the manual, typically ranging from 15,000 to 60,000 miles depending on the component and driving conditions.
Engine Oil Spec:
SAE 5W-30, API Certified. Check manual for specific viscosity based on climate. Synthetic oil recommended.
Coolant Spec:
Subaru Super Coolant (Blue) or equivalent ethylene glycol-based coolant with long-life additives. Capacity approx. 7.4-7.7 US quarts.
Transmission Fluid Manual:
API GL-5, SAE 75W-90 Gear Oil. Capacity approx. 2.0-2.5 US quarts.
Transmission Fluid Automatic:
Subaru ATF-HP (High Performance) or equivalent. Capacity approx. 4.0-4.5 US quarts for drain/refill.
Differential Fluid Front:
API GL-5, SAE 75W-90 Gear Oil. Capacity approx. 1.0 US quart.
Differential Fluid Rear:
API GL-5, SAE 75W-90 Gear Oil. Capacity approx. 1.2 US quarts.
Known Issues:
Head gasket leaks (particularly on earlier EJ25 engines, though less common on this generation than previous ones), oil consumption, catalytic converter issues, suspension component wear (bushings, ball joints), turbocharger issues on XT models (if applicable), ignition coil failures.
Known Issues Headgasket:
While Subaru addressed head gasket issues in later models, the EJ25 engine can still be prone to external oil leaks from the head gaskets. Internal coolant leaks are less common but possible. The manual details inspection procedures and torque specifications for proper reinstallation.
Known Issues Oil Consumption:
Some EJ25 engines can exhibit oil consumption, often due to worn piston rings or valve stem seals. The manual provides specifications for checking oil level and diagnosing potential causes.
