2004 Chevrolet Optra Service and Repair Manual

This factory service and repair manual for the 2004 Chevrolet Optra covers a single engine, a naturally aspirated 2.0L inline-four of 122 cubic inches with double overhead camshafts, fitted to two four-door bodies, a sedan and a hatchback, in Base and LS trim. One engine keeps the mechanical half of the manual short and definite. The body half is where the two shapes part company, with rear structure, glass and the harness routing behind the rear seat differing between them.

Engines covered

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

Body styles covered

• 4-door sedan
• 4-door hatchback

Trims covered

• Base
• LS

Known issues on the 2004 Optra. One owner complaint is on record for this model year, and it concerns the exterior lighting. Lamp circuits are among the more tedious faults to chase on any car, since the failure can sit in a bulb, a socket, a ground, a switch or a splice, and this manual carries the wiring diagrams and circuit tests that separate those possibilities. The rest of the book handles the twin-cam four, its fuel and cooling systems, the transmission, the brakes and the suspension, with torque values and clearances given throughout.