Target Audience:
Vehicle owners, DIY enthusiasts, independent repair shops, and automotive technicians.
Differentiation:
This is a complete FACTORY Service Manual, distinct from generic repair guides. It is vehicle-specific and mirrors the information used by dealership technicians.
Authenticity:
Original Factory Service Manual (FSM) used by dealership technicians.
Completeness:
Covers all parts, models, and repairs A-Z for the specified production year.
Usability:
Single, easy-to-use digital format (PDF) for efficient access to information, unlike multiple physical books.
Illustrations Diagrams:
Abundant illustrations, diagrams, and schematics to aid in comprehension and repair.
Engine Mechanical:
Engine removal/installation, cylinder head/valve train, engine block, engine lubrication, intake manifold/exhaust system, engine repair, valve timing procedures, chain & gear replacement, tensioner adjustments, tightening torques, timing marks, valve timing instructions, tensioner release & reset methods, chain routing & sprocket/gear valve timing marks
Engine Systems:
Cooling and heating, fuel and emissions, emissions control, ignition, air conditioning
Drivetrain:
Transaxle, clutch, manual transmission, automatic transmission, differential, driveshaft
Chassis:
Steering, suspension, brakes (including ABS)
Body And Interior:
Body, heater and air conditioning, automatic climate control
Electrical And Safety:
Electrical (including SRS), Supplemental Restraint System (SRS), wiring diagrams
Emissions Control Details:
Covers evaporative emissions control systems, catalytic converters, oxygen sensors, and related diagnostic procedures.
Steering System Details:
Power steering pump, rack and pinion assembly, tie rods, and alignment specifications.
Suspension System Details:
Front struts, rear shock absorbers, control arms, sway bars, and wheel bearing replacement.
Brake System Details:
Front and rear disc brake systems, brake pad and rotor replacement, caliper service, brake line bleeding, and ABS component diagnostics.
Maintenance:
Routine maintenance, tune-up procedures
Repair:
Complete repair of all components and systems, diagnostic procedures
Diagnostics:
Troubleshooting common issues, diagnostic flowcharts (implied by comprehensive coverage)
Special Procedures:
Special tools usage, valve timing, tensioner adjustments and resets
Ignition System Service:
Spark plug replacement, ignition coil testing, and ignition control module diagnostics.
Body Repair:
Door panel removal, bumper replacement, glass service, and basic body panel alignment.
Climate Control Service:
HVAC system diagnosis, refrigerant handling (for AC), blower motor, heater core, and evaporator core replacement.
Depth Of Coverage:
Comprehensive, factory-level detail covering all repairs from basic maintenance to complete overhauls, including diagnostic and electrical schematics.
Instruction Detail:
Complete step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications.
Electrical Diagrams Type:
Comprehensive wiring schematics for engine control, lighting, accessories, power distribution, and SRS system.
Engine Options:
Details for EJ25 SOHC and DOHC engines (common for 1999 Legacy). Specifics on displacement, bore, stroke, and compression ratio are contained within the manual.
Horsepower Range:
Typically ranging from 165 hp (SOHC) to 190 hp (DOHC), with specific figures available in the manual.
Torque Range:
Approximately 166 lb-ft (SOHC) to 177 lb-ft (DOHC), with precise specifications in the manual.
Fuel Delivery:
Sequential Multi-Point Fuel Injection (MPI) is standard across the EJ series engines for this period. Manual details fuel system components, pressure, and diagnostics.
Engine Type:
Horizontally opposed (Boxer), naturally aspirated or turbocharged (GT models, though less common for base 99 Legacy).
Oil Change Interval:
Typically every 3,750 to 7,500 miles or 6 months, depending on driving conditions and oil type used. Manual will provide definitive recommendations.
Timing Belt Replacement:
For EJ25 engines, the timing belt is typically recommended for replacement every 90,000 to 105,000 miles or 7 years. The manual will detail the procedure and associated components like tensioners and idler pulleys.
Engine Oil Type:
For the 1999 Legacy, SAE 5W-30 or 10W-30 viscosity is typically recommended, with full synthetic oils offering enhanced protection. The manual will specify API service classification (e.g., API SG or higher) and capacities.
Coolant Type:
Subaru's blue-colored Super Coolant or a compatible Asian-vehicle specific long-life coolant (ethylene glycol based) is recommended. Capacity is approximately 6.7-7.5 quarts. Manual will confirm.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid is typically specified. Manual will confirm exact specification and capacity.
Transmission Fluid Manual:
API GL-5 gear oil specification for manual transmissions. Manual will list specific viscosity (e.g., 75W-90).
Head Gasket Failure:
While less prevalent in the third generation compared to earlier models, head gasket sealing can still be a concern. The manual provides detailed procedures for inspection and replacement.
Automatic Transmission Failures:
Some instances of automatic transmission overheating or premature wear can occur, particularly with heavy use. The manual offers diagnostic and repair guidance for the 4EAT.
