1991 Mitsubishi Eclipse Service and Repair Manual

This factory service and repair manual for the 1991 Mitsubishi Eclipse deals with a two-door hatchback sold in Base, GS, GST and GSX trims. Its engine lineup runs from a naturally aspirated 1.8L single-overhead-cam four of 107 cubic inches to a pair of 2.0L double-overhead-cam fours displacing 122 cubic inches, one breathing on its own and one turbocharged; all burn gasoline. Specifications and torque values are given for the three engines, alongside procedures for the fuel, ignition, cooling, transaxle, drivetrain, brake, suspension, steering and electrical systems.

Engines covered

• 1.8L inline-four (107 cu in) — SOHC, naturally aspirated, gasoline
• 2.0L inline-four (122 cu in) — DOHC, naturally aspirated, gasoline
• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline

Body styles covered

• 2-door hatchback

Trims covered

• Base
• GS
• GST
• GSX

Known issues on the 1991 Eclipse. Seat belts are the second-largest group among the 54 owner complaints for the 1991 Eclipse, at 12, behind the power train at 19; engine and engine cooling follow with 8, suspension with 6 and hydraulic service brakes with 4. Of those complaints, 4 reported a crash, 4 an injury and 2 a fire. The federal record holds 2 recalls. One concerned certain 1991 Eclipse vehicles with Takata-made safety belts, whose red front release buttons could crack and drop fragments into the buckle so it no longer worked properly. The other covered certain 1991 Eclipse vehicles whose transfer case could lock up for lack of lubrication. Seat belt, drivetrain and suspension procedures and specifications here apply.