I had this same problem. It was intermittent at first but then they stopped working entirely. I went through all the checks others have suggested with no improvement. Eventually I replaced the motor and they've been working great ever since.
2005 CAT Diesel
This doesn't happen all the time, but it does happen often. After starting and running the engine just long enough to get the air pressure up, when trying to accelerate anything over 20% throttle or so, the engine hesitates (doesn't matter if I floor it, it only accelerates VERY slowly).
It stumbles until it seems long enough for the RPM to get high enough for the turbos to kick in and then it takes off. This could take anywhere from 1-2 seconds to as long as 10-15 seconds. Once I'm going its fine. As long as I don't have to stop again before the engine is up to temp, it doesn't happen again. Once the engine is up to temp (my only indicator so far), it runs like a champ. But it has to get ALL the way up to temp. Even at 180+ degrees it still does it.
It seems to be related to either engine temp or possibly the fast idle and idle required to get the air pressure up.
Has anyone had this problem? Any ideas how to avoid it?
- I thought it was fuel filters, but full maintenance including air filter, fuel filters, oil change, you name it... did not make the problem go away (they were not able to replicate the problem at the shop)
Thanks in advance for sharing your experience.
We are going to be starting to take trips in the moho again this weekend with the addition of a second child. We now have a 2 year old and a newborn. Of course, the 2 year old has outgrown the pack and play and our motorhome has the standard floorplan without bunks.
For those of you with multiple young children without bunks - where do they sleep? We'd like to be able to use the living area while they are sleeping in the evening, but that means the kiddos get the master bedroom and we are stuck on the fold-out couch.