Heavy duty diesel engines are very reliable and, if properly maintained, will last over 1 million miles. In some cases, gaskets will fail over time. For example, external coolant leaks at head to block or oil seepage are indications of a failed head gasket. When that happens, it is very important to get your truck
An internal or external loss of coolant on your Cummins ISX 15 must be checked correctly in order to determine the root cause. Before troubleshooting, it is important to also determine the exact complaint by interviewing the driver and looking at the ECM information. Coolant loss is a major issue and must be repaired at