28/01/2016

Mercedes MBE EGR Cooler

The EGR cooler on this MBE 900 diesel engine developed a massive exhaust leak. The cause was the rear elbow at the cooler had worked it’s way out of the housing which caused the problem. This produced a lot of wear at the EGR cooler housing where the steel sealing rings sit. There’s not going… Continue reading Mercedes MBE EGR Cooler

Cummins ISC Diesel Engine Code 1899

This particular problem is on a 2009 Cummins ISC diesel engine. This model is an inline 6 8.3 Liter running in a Thomas HDX pusher school bus. The amber light presented itself on a field trip but did not cause any running problems mainly because it was an emission code. When the onboard computer does… Continue reading Cummins ISC Diesel Engine Code 1899