Ground Offset: The Two Thousand Five Hundred Dollar ECU Replacement You Didn’t Need (And How to Avoid It)
Last winter I took a call from a fleet maintenance supervisor who had a Freightliner Cascadia with a Cummins ISX12 sitting dead in the yard, a stack of repair orders already totaling over two thousand dollars, and a dealership insisting the only path forward was a second engine ECU. A month earlier, their first ECU replacement had been diagnosed based on a […]