1990 Subaru Legacy Service and Repair Manual

This factory service and repair manual for the 1990 Subaru Legacy follows the car in both of its shapes, the 4-door sedan and the 4-door wagon, each powered by a 2.2L flat-four. That horizontally opposed engine uses a single overhead camshaft layout, breathes without a turbocharger and runs on gasoline. Three trims are listed for the year: Base, L and LS. Procedures, specifications, torque values and wiring diagrams address the engine, fuel and ignition systems, the transmission and drivetrain, the brakes, suspension and steering, and the body.

Engines covered

• 2.2L flat-four — SOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan
• 4-door wagon

Trims covered

• Base
• L
• LS

Known issues on the 1990 Legacy. The federal record holds 4 recalls for the 1990 Legacy. One covered certain all-wheel-drive cars with the 5-speed manual registered in certain states: in prolonged deep cold and humidity, ice could plug the gearbox vent, pressure could force out a rear seal, and the unit could lose its oil and seize. Another reached certain cars with the 4EAT automatic, whose park gear could be slow to let go when shifted toward reverse. A third, covering 81,000 certain sedans and wagons, fixed a defroster door pin that could slip loose. Owners filed 81 complaints; 4 reported a crash and 4 an injury. The manual gives procedures, specifications and diagnostics for the transmission, body and defroster.