About Us

Gary SmithGary Smith

DiagNation.com as a Division of G.S.S. Enterprises, Inc. delivers relevant, advanced diagnostic and sales training to shops and automotive groups, designed around real-world problems seen daily in our shops, keeping technicians and advisors engaged – not sleeping!

Gary brings over 30 years of experience in the automotive training and marine industry and is highly experienced in training technicians in identifying and solving engine and fuel systems problems.

Gary’s unique style of training has built a solid reputation for helping service advisors to perform by helping them to understand how vehicle systems work, and how to use that information to present an honest and credible sale to the consumer.

DiagNation.com specializes in shop profitability and productivity consultations, and has helped many automotive groups to improve their bottom line through process improvement initiatives.

We offer exciting and engaging courses to help you improve service center skills ranging from Advanced Diesel and Gasoline Fuel Control Technologies, to How to Educate Your Customer.

We offer automotive, fleet and marine repair shop consultation and technical training.

Click here to learn more about Training on DiagNation.com site. You can also order a Remote Support session – just purchase one or more Remote Support sessions and our technician will contact you shortly.

Otherwise, Contact Us if you have any questions or you would like to schedule a consultation.  We would be happy to answer all your questions and provide additional information on how to sign up for courses or attend webinars.