Thanks for the responces and input from all of you.
I still feel that there is a under lying problem,both by Coach Cares negligence and Western RV wanting to stick their head in the sand till the weather changes. I had hoped to get this resolved by phone, fax,and E Mail during the four monts in Arizona. But then I wouldnt be sharing this info with you and the problem would not be being discussed in this forum.
In commenting on your input, I had cummins in Sparks check for any leaks,hoses pipe, fittings,turbo, etc and they found none. I performed a simple vachum test on the filter minder when the engine was being rebuilt and it works fine. It is still on the Coach, and it never read over 15. In fact that is what it read when we pulled into Sparks with the problem.The filter minder is looked at and reset every time I check the oil and transmission fluids and drain water from fuel seperator. What makes this problem even stranger is that at no time did we have any signs of the engine running rough,power being less,fuel consumption being more, no whistles, bells or lights flashing etc. One would have to assume that all these safeguards are hooked up and operating. Also when Cummins ran the Dionastic test that can tell you every thing it did not show Zip and this supprised them. So I agree we are not supposed mto pull the filter to look or clean, but if you cant rely on the filter minder or the whistles and bells and the flashing lights due we wait for the Blue Smoke and the Burnt Oil Smell?
I appreciate all your input and help to keep this thing going till we get some answers.