Watched a master tech cut his diag time from 3 hours to 40 minutes with one cheap tool
Last Tuesday a guy named Ray was chasing a misfire on a 2014 Silverado that two of us had already spent 3 hours on. He hooked up a $40 scope to the coil and saw the spark pattern was weak on cylinder 4, bad ground strap the whole time. How many of you are actually using a scope in your day to day, or is it still just me and the old timers?