Wjohns02 wrote:
Thought I would come back with an update. So we were able to find a mechanic to check out the motorhome. Recommended changing the air filter (again). Explained that we had just done that two weeks earlier but followed his advice and changed it again. Seemed to correct the problem but really seems odd it could need to be changed so soon.
I'd have to guess the shop "said" they changed it, but either forgot, or didn't try to change it. Sorry, if the "shop" was you. If so, my comment doesn't make any sense. However, not all air filters are equal. Some engines put a lot of pressure on the filter and can collapse lessor filters. I only run the OEM types on my diesels. If the filter is not an OEM one, you might try that as well.
I'm also a big believer in additives like Sea Foam and Diesel Kleen. I find they help make my diesels run better although some say it is snake oil. YMMV.