Tim Gilles

Tim Gilles

Tim Gilles is the author of several textbooks with Cengage Learning. He recently retired after teaching automotive technology for 38 years at Santa Barbara City College.

Downloads from this site are available to classroom teachers at no cost.  If you would like to download them, e-mail TimGilles@timgilles.com  for a login and password.

Instructors can download supplemental materials for my textbooks at the Cengage website:


Downloadable files include:

  • Image galleries by chapter. You can use these to customize PowerPoint presentations to fit your needs.
  • End of chapter review questions and test questions in Word, Angel LMS, Blackboard LMS, Canvas, Desire2Learn, and Moodle.
  • Downloadable instructor manual including answer keys to text questions, sample lab tasks and tests, lesson plans, and answers to lab manual activity sheets.
  • Downloadable test banks in several formats, including Word, Angel, Blackboard, Canvas, Desire2Learn, and Moodle.
  • A set of grids, in Excel format, that correlate the NATEF MLR, AST, MAST, and required supplemental task lists to the fifth edition of Automotive Service.
  • A crossover correlation guide is an Excel grid that summarizes changes in the fifth edition and correlates all content to ease transition from the fourth edition.

Automotive Service, Inspection, Maintenance, and Repair

Automotive Service: Inspection, Maintenance & Repair covers the fundamentals of operation and repair for all major systems of the modern automobile. This comprehensive text introduces ...


Automotive Engines, Diagnosis, Repair, and Rebuilding

Updated to reflect current trends and industry concerns, the seventh edition of Automotive Engines aids readers as they develop the technical expertise and critical thinking skills needed to effectively diagnose and troubleshoot worn and failed parts.




Automotive Chassis

This user-friendly resource will thoroughly prepare readers to work in the important area of automotive technology known as chassis systems. It features coverage of both brakes and suspension/steering in one complete volume.

About Tim Gilles

Tim was a teacher at the high school and college level for thirty eight years and has been a writer for over 30 years. He is the author of several textbooks with Cengage Learning. This web site is a source of many photographs and teaching aids to accompany his texts.

Tim is a past-president and long-time board member of the California Automotive Teachers Association. He has been a member of the North American Council of Automotive Teachers since the early 1980s. He has served on the NACAT Board of Directors and was chair of the election committee for many years.

Tim has a Master's Degree in Occupational Education, a Bachelor’s Degree in Industrial Arts, and a Community College Life Teaching Credential, with four years of industry work experience prior to his teaching career. He was an ASE Certified Master Automotive Technician and ASE Certified Master Engine Machinist.