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    • John Kelly

    Contributing Editor

    John D. Kelly is a professor of automotive technology at Weber State University in Ogden, Utah, and a former technician. He specializes in automatic and manual drivetrain and NVH diagnosis and hybrid and electric vehicle technology.

    Operations

    Hybrid Horsepower: Hybrid/EV Racing Technology

    John Kelly
    Jan. 1, 2020
    Electric motors have a distinct advantage in racing. They make all their power instantly or with the push of a button. Hybrid and electric vehicle (EV) power sources are used ...
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    Practical hybrid service tips

    John Kelly
    Jan. 1, 2020
    The following hybrid maintenance items are easily completed, but you must follow the proper procedures to avoid unhappy customers and vehicle damage.
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    Bad automotive vibes

    John Kelly
    Jan. 1, 2020
    A customer brings their vehicle into your shop with a vibration complaint; you hesitate to take the job because you know that the success rate of diagnosing and repairing vibration...
    Operations

    Smartphone-based NVH diagnostics

    John Kelly
    June 1, 2018
    One app can turn your phone into a powerful Noise, Vibration, and Harshness (NVH) diagnostic aid.