Do You Really Need an Oscilloscope? A Cost-Benefit Analysis for Heavy-Duty Fleet Shops

I remember a call from a fleet manager in Ohio three winters ago. His shop had a 2017 Freightliner Cascadia with a sporadic crank-no-start. No codes, no MIL, and the thing would fire up perfectly every time they towed it into the warm shop. Two different mobile techs had thrown a cam sensor, a crank sensor, […]