The 2004 Concorde, a full-size sedan from the second generation of the LH platform, offers a spacious and comfortable interior within its distinctive cab-forward, aerodynamic design. This model is equipped with powerful V6 engine options, including the 3.5L EGJ producing 232 hp and the 2.7L ECL with 200 hp, both paired with a 4-speed 42LE automatic transmission. Known for its refined ride and ample passenger volume, the Concorde was designed to compete in a segment that valued comfort and interior packaging. The brand's heritage in producing feature-rich sedans is evident in the Concorde's blend of style and practicality. This comprehensive workshop manual provides in-depth information for the full service and repair of the 2004 Concorde. It covers essential areas such as engine and transmission diagnostics and overhaul, suspension and brake system maintenance, electrical system troubleshooting, and body and interior repairs. The manual includes detailed procedures for scheduled maintenance, common repairs, and technical specifications, along with diagnostic charts and troubleshooting guides. Its purpose is to empower owners, independent repair shops, and professional mechanics with the knowledge needed to effectively maintain, diagnose, and repair the vehicle, ensuring optimal performance and longevity.