This comprehensive 1989 Ferrari 308 Quattrovalvole, 328 GTB, 328 GTS Workshop Service Repair Manual provides detailed instructions and high-quality diagrams to guide you through servicing and repairing your Ferrari. It's an essential resource for any DIY enthusiast, allowing you to save money on service and maintenance costs. The manual covers a wide range of topics, including engine overhaul and rebuilding, troubleshooting and diagnostics, computer diagnostic trouble tree charts, engine performance, front end and alignment procedures and specifications, suspension, transmission removal and installation, air conditioning service and capacities, transmission in-car servicing, firing orders, detailed specifications, timing belt service procedures, brake servicing procedures, complete torque specifications, U-joint and CV-joint service procedures, repair procedures, complete wiring diagrams, and vacuum diagrams. This manual is your complete guide to keeping your Ferrari running smoothly and efficiently.

The 1989 Ferrari 308 Quattrovalvole, 328 GTB, and 328 GTS are iconic sports cars that represent the pinnacle of Italian automotive engineering and design. The 308 Quattrovalvole, introduced in 1985, was a significant evolution of the original 308, featuring a new 3.0-liter V8 engine with four valves per cylinder, hence the name "Quattrovalvole" (four valves). This engine produced a significant power increase over its predecessor, reaching 240 horsepower. The 328 GTB, launched in 1985, took the 308 Quattrovalvole concept further, introducing a new, lighter chassis and a more aerodynamic body. The 328 GTS, a targa-top version of the GTB, was released in 1986, offering a more open-air driving experience. All three models were known for their powerful engines, sleek styling, and exceptional handling characteristics.

The 1989 versions of these cars continued to exemplify Ferrari's commitment to performance and luxury. Featuring a 3.2-liter V8 engine with 270 horsepower, these models offered blistering acceleration and a thrilling driving experience. The 328 GTB and GTS were particularly popular, with their sleek and aerodynamic design, sculpted lines, and distinctive pop-up headlights. The interior was equally luxurious, featuring leather upholstery, a classic Ferrari steering wheel, and a comprehensive instrument panel. These cars were renowned for their excellent build quality, precision engineering, and meticulous attention to detail, reinforcing their reputation as desirable and collectible vehicles.