During our most recent camping trip to Summersville Lake, WV, we encountered heavy rain on the interstate. My 2002 Adventurer 35U Workhorse (Alyce)seems to get a fair share of moisture in the air intake due to its location. Enough moisture will get into the air box to cause the engine to stumble. I have even had it set the CEL light. Has anyone with a similar motorhome made an adapter to the intake horn to minimize water ingress? Would you care to share your solution with a fellow Adventurer owner?