1978 Ford Fiesta Troubleshooting Electrical Manual & Car Shop Manual

The 1978 Fiesta Electrical & Vacuum Troubleshooting Manual was written for Ford dealership mechanics, this book will help you troubleshoot or diagnose electrical and vacuum problems. You will find electrical and vacuum diagrams broken down so that you can perform specific tests. Look for troubleshooting maps and/or diagnostic trees designed to take you through the process of finding your problem(s) step by step. The specifications in this book will help you to understand connector configurations, and locate & identify harnesses, circuits, relays, and grounds. The vacuum diagrams indicate flow, valve & sensor locations, hose colors, and vacuum distribution. In many cases, this type of book can be used in place of a wiring and/or vacuum diagram. However, you will need a separate book for emissions related vacuum repair instructions and diagrams. Covers all 1978 Ford Fiesta models.