iv About the Author James E. Duffy has devoted much of his professional life to developing educa- tional materials that help people understand vocational and technical subjects. Mr. Duffy earned a Bachelor of Science degree in Industrial Technology and an Associate of Science degree in Industrial Electronics from Indiana State University. After college, Mr. Duffy worked as an automotive instructor at Brandon High School in Brandon, Florida, and at Hillsborough Adult Education Center in Tampa, Florida. After teaching for several years, Mr. Duffy joined Goodheart- Willcox Publisher as a technical editor and eventually began writing textbooks. In addition to Modern Automotive Technology, Mr. Duffy’s books include Auto Electricity and Electronics, Auto Engine Repair, Automatic Transmissions and Transaxles, and Manual Drive Trains and Axles. New to This Edition This edition of Modern Automotive Technology contains several enhancements to help students succeed. • Content has been updated throughout the textbook to ensure adequate coverage of the latest ASE Education Foundation tasks and emphasize current technology and industry practices. • Content has been edited with an eye toward relevancy for a focused, up-to-date product that provides students with knowledge and skills needed for entry-level employment. • Workplace Skills features have been expanded to emphasize ASE Education Foundation Workplace Skills requirements. • Photos and illustrations have been updated throughout the textbook to show late-model vehicles, current technology, and appropriate work/shop conditions.