Original 1993 Ford Ranger Electrical & Vacuum Trouble-Shooting Shop/Service Manual. This manual was used by the factory dealership to diagnose and identify electrical and vacuum problems, and includes many diagrams.  It contains a wealth of information and will provide invaluable in-service procedures on this model. This is a used manual from a dealership (not new). It shows normal wear and blemishing from use in a Dealership [see photos].