Tracy Martin

Tracy Martin writes for Motor Age, Aftermarket Aviation Defense, Contact! and Turbo Diesel Register magazines. As an ASE certified master technician and consultant, he has worked in the automotive aftermarket for over 25 years and has provided consulting services for Snap-On Tools, Sun Electric, Chevron Oil and Nissan of North America. He has developed automotive/powersports curriculum and taught courses including: engine performance, automotive electronics, fuel injection, ABS braking systems and advanced motorcycle riding techniques. He has also provided consulting services as an expert witness for automotive and powersports-related court actions.

He is the author of five books: How to Diagnose and Repair Automotive Electrical Systems, Motorcycle Electrical Systems–Troubleshooting and Repair (two editions), How to Use Automotive Diagnostic Scanners (two editions) and How to Modify Motorcycle Fuel Injection, all published by Motorbooks International. 

Photo from Mikes-Photography on Pixabay
Vehicle A/C

A look at alternative refrigerants to R-134a

Feb. 4, 2022
New EPA regulations require 2021 MY and later vehicles to use a refrigerant other than R134a.

A look at diesel SCR service

Nov. 2, 2020
It’s just good business to be prepared to work on these vehicles and to educate your customers about diesel engine ownership.

New automotive lighting technologies continue to help improve safety

Sept. 1, 2020
Just as the latest driver-assist technology (like automatic braking, stay-in-lane, or pedestrian warning systems) use an array of cameras and sensors, future high-tech headlight...

Understanding horsepower and torque

April 1, 2020
Understanding the two terms is dependent on understanding the history behind them