The 1988 GMC light duty truck fuel and emissions including drivability service manual is a paper-based manual specifically designed for GMC trucks from the year 1988. This manual provides detailed information on fuel and emissions systems, as well as drivability aspects of the vehicle. It is a valuable resource for owners and mechanics looking to service and repair GMC light duty trucks from the late 1980s, offering insights and guidance on maintaining and troubleshooting these specific vehicles.