For courses in Automotive Engine Performance, Automotive Principles, Engine Performance and Driveability, and Automotive Electricity and Electronics Systems. Written in and for the 21st century, Automotive Engine Performance features a diagnostic approach, multimedia approach, and Internet approach. This comprehensive textbook is divided into chapters that correspond to the content area of certification as specified by the National Institute for Automotive Service Excellence (ASE) and the National Automotive Technicians Education Foundation (NATEF). The content area of all ASE material certification is listed in the objectives at the beginning of each chapter and all laboratory worksheets are correlated to the NATEF Task List. Terminology throughout reflects the SAE J-1930 standard. Written to satisfy the need for problem diagnosis as its primary focus, this text features diagnostic stories throughout to help illustrate how real problems are solved. Each new topic covers the parts involved plus the purpose, function, and operation, as well as how to test and diagnose each system. All information on any given topic is discussed as a unit, not scattered throughout the text as in other books.