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    Figure 1: The relative compression test is featured frequently in the pages of Motor Age magazine as it is a very efficient test that yields a lot of information about engine mechanical integrity.
    Diagnostics and Drivability

    Compression testing a Ford F-150

    Brandon Steckler
    Sept. 12, 2024
    Cylinder integrity refers to its ability to harness its contents. But if it won’t fill, is there really anything to squeeze?
    Photo courtesy of Rick Urso
    Digital inspection tools allow technicians to complete jobs quicker and more efficiently.
    The Garage

    The benefits of digital inspection tools

    Rick Urso
    Sept. 10, 2024
    A good diagnostic tool arsenal should help you complete jobs faster and more efficiently.
    Photo courtesy of Scott Brown
    Diagnostics and Drivability

    The impact of electric vehicles on the automotive market

    Scott Brown
    Aug. 28, 2024
    Steps to help prepare your shop for electric vehicles.
    Clay Cowell
    Service Repair

    Why this Ford F-150 won't start

    Brandon Steckler
    Aug. 1, 2024
    Many times driveability symptoms surface without associated DTCs.
    Chris Martino
    Service Repair

    Why it's important to build and trust your diagnostic process

    Chris Martino
    Aug. 1, 2024
    The story of a 2018 Land Rover Discovery, an engine rebuild, and a lingering list of diagnostic questions to solve.
    Tire Rack
    Service Repair

    Tire match mounting tips

    Mike Mavrigian
    Aug. 1, 2024
    Tire-to-wheel match mounting is an effort to minimize the effects of either imbalance or radial force variation (RFV).
    Brandon Steckler
    Diagnostics and Drivability

    Powerstroke Engine Choked Under Pressure

    Brandon Steckler
    July 18, 2024
    The in-cylinder compression waveform is an easy way to see engine-mechanical faults without disassembly. But what if the breathing issue isn’t an engine issue at all?
    Brandon Steckler
    Diagnostics and Drivability

    Solved: A Mazda 6 that underperforms

    Brandon Steckler
    July 17, 2024
    This 2006 Mazda 6 idled just fine, but the 2.3L turbo engine barely performed and exhibited poor power output under cruise and acceleration. The same DTC seemed to show up, but...
    Diagnostics and Drivability

    Top 10 diagnostic products: Q2 2024

    Elli Carder
    July 1, 2024
    Check out the most popular diagnostic products added to Vehicle Service Pros in the last three months.
    Diagnostics and Drivability

    2024 Scan Tool Spec Guide

    VehicleServicePros.com Staff
    June 14, 2024
    A comparative list of functions and features for a large selection of aftermarket scan tools.
    Diagnostics and Drivability

    Toyota's Dynamic Force Engines

    Jeff Taylor
    June 7, 2024
    Toyota introduced the Dynamic Force Engine family, featuring I3, I4, and V6 engines with turbo and non-turbocharged applications. The engine prioritizes thermal management to...
    Image by Brandon Steckler
    Diagnostics and Drivability

    Analyzing an underperforming Mazda 6

    Brandon Steckler
    June 6, 2024
    This 2006 Mazda 6 2.3L turbo was exhibiting poor power output under cruise and acceleration. The vehicle seemed to idle just fine, but barely performed, even under low load conditions...
    137913561 © OPZ Creative | Dreamstime.com
    Diagnostics and Drivability

    Diagnosing from different angles

    Brandon Steckler
    June 5, 2024
    Being a technician under pressure to get the job done quickly is not a stress-free position. This intensity is multiplied when you factor in a flat-rate pay scale. With that, ...
    Photo courtesy of Scott Brown
    Diagnostics and Drivability

    Electrical circuit testing techniques for service technicians

    Scott Brown
    May 29, 2024
    Understanding your tools and equipment for electrical circuit testing is crucial to performing competent diagnostics.