Tunedude

After replacement of the failed EGR cooler (the cooler was pushing coolant out through the exhaust system at the rate of all of it at once) we tried to get back on the road but the Turbo gear stuck. This caused check engine and turn off engine. The Tech showed me the stuck gear before replacing. He also said the actuator valve was not reading to specs when tested. The DP filters were saturated but we were able to have them cleaned. The repairs consisted of a new EGR cooler system (Cummins does not make replacement parts for the one that was installed), replacement of the Turbo and actuator valve, and cleaned reused DP filters.

This is an ISL 2008 Cummins pusher. The cooler was an EGR cooler which had to be replaced with a new system.. That failure lead to having to clean both filters, replace my Turbo, and other components, Very expensive.

I am stuck in a repair shop dealing with the EGR cooler failure. I have a 2008 Monaco Diplomat 400Hp Cummins motor with 64K miles. My cooler failed and pushed coolant into other parts of the engine. When we had the repairs done we found out Cummins stopped making parts for that cooler. We had to pay for a new cooler system which was not cheap. Is anyone else having these problems? After the repair we got 70 miles away from the repair shop and had to stop for other problems due to the coolant getting into other parts. I have not seen any recalls but this seems to me to be a manufactured problem, not operator error.