Contributing Writers for
Underhood Service

Larry Carley, who is recognized as one of the top automotive technical writers in his field. Carley started in this industry working as a mechanic in high school before earning degrees in both journalism and engineering. He has authored more than a dozen books and more than a thousand articles on automotive repair.
Gary Goms, who is the owner of Midland Engine Electronics and Diagnostics in Buena Vista, CO. Goms, with more than 20 years of experience as a technician and vocational trainer, helps readers tackle even the toughest repair diagnostic problems as a co-author of the "Diagnostic Dilemmas" column.
John Thornton, who is the co-owner of Pro-Tec Auto Repair in Naperville, IL. Thornton co-writes the "Diagnostic Dilemmas" column, and specializes in driveability/engine performance, engine controls and electronics. His technical expertise and informative articles have earned him the respect of fellow technicians.
Brian Manley, an ASE-triple-certified auto technician and vocational instructor in Aurora, CO. Manley, who authors the "Servicing Solutions" column and other technical and management features, has a friendly writing style that readers have come to enjoy.
Corey Glassman, who is an ASE-certified technician, L-1 auto technician and Automotive Training Managers Council (ATMC) member. Glassman has co-authored the automotive textbook "Advanced Engine Performance Diagnostics" and assists with the test writing sessions for ASE.
Ken Hanna, who is the owner of Ken Hanna's Automotive in Mexico, MO. Hanna, one of the newest contributors to Underhood Service, shares with readers a wealth of valuable tips that he has come across in his many years as a technician and shop owner.