2003 Chevrolet Vectra Service and Repair Manual

This factory service and repair manual for the 2003 Chevrolet Vectra covers a four-door sedan sold in three trims, with two gasoline engines that share a twin-cam layout and little else: a naturally aspirated 3.2L V6 of 197 cubic inches and a naturally aspirated 2.2L inline-four of 132 cubic inches. Because the four and the six differ in cylinder count, block and accessory drive, the engine sections carry separate specifications and torque values for each, while the chassis, body and wiring material runs common to Base, Comfort and Elegance cars.

Engines covered

• 3.2L V6 (197 cu in) — DOHC, naturally aspirated, gasoline
• 2.2L inline-four (132 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base
• Comfort
• Elegance

Known issues on the 2003 Vectra. The manual gives the diagnostic routines, specifications and torque values for both twin-cam engines, the fuel and ignition systems that feed them, the transmission and driveline, the brakes and suspension under the sedan body, and the wiring diagrams for lighting, charging and body circuits.