The Alternator Ripple Effect: How Charging System Noise Corrupts J1939 and Causes Phantom Derates
I remember the call. The fleet manager up in Edmonton had been staring at the shop’s scope trace for 40 minutes. “It’s clean at idle,” he said. “What am I supposed to do with that?” That’s when I booked the flight. Three of his vocational trucks—identical specs, bought six months apart—kept falling on their face […]