Just purchased a 2006 PC 2551 with a 6.0L diesel engine. The engine noise level in the cab is almost unbearable and I'm deaf. My lady friend isn't and can't stand being in for too long. Imagine how it is for the cats.
I have reduced the noise level by adding Dynamat to all surfaces within the cab and also in the engine compartment applied noise dampening material. The engine noise is slightly reduced but we are wanting to know if anyone has any other ideas or has also experience this noise problem.
The cats have noticed what a rough ride it is aft. This is my third motor home and it's the best looking of all...now if only I can solve these problems.