The 1998 Buick Park Avenue is a full-size luxury sedan renowned for its spacious interior, comfortable ride, and refined styling, making it a strong competitor in its segment. Built on the front-wheel-drive W-body platform, it offered a choice between the naturally aspirated 3.8L V6 (L36) producing 205 horsepower and 230 lb-ft of torque, or the more powerful supercharged 3.8L V6 (L67) delivering 240 horsepower and 280 lb-ft of torque. Key features included advanced technology for its time, such as optional premium audio systems, automatic climate control, and an optional telematics system. The vehicle's commitment to comfort and reliability is further underscored by the 3800 Series II V6 engine's multiple accolades, including 10 Best Engines awards. This comprehensive Workshop Service and Repair Manual provides extensive guidance for the 1998 Buick Park Avenue. Covering all major systems including powertrain, chassis, electrical, and body, the manual details scheduled maintenance, diagnostic procedures, and complete repair instructions for component removal, overhaul, and installation. It is an invaluable resource for owners and technicians alike, offering detailed troubleshooting guidance, diagnostic flowcharts, and technical specifications, including torque values and wiring diagrams. With over 2000 pages of information, this English-language manual empowers users to effectively maintain and repair their vehicle, ensuring optimal performance and longevity.