I have a 2001 330 Cummins that did same thing twice. Almost feels if the transmission has a hick up, very intermittent. First time last spring for about 40 miles. After stopping for lunch it was fine. When we got home I dropped the tank and cut it open, cleaned, sealed and reinstalled. (huge messy pain in the a## job-- 6 days work) I changed fuel filters and all was good for the rest of the summer. Started out on a trip in October when it happened again. We drove for a while then pulled into a rest area and shut it down for a few minutes. Started it up and all was good the rest of the trip. Strange that both times it went away after shutting down and restarting.
Eddie and Carol
2001 Monoco Diplomat