Originally Posted by coxj93
DW and I just returned from a trip from Pa to Fl and back. We had visits from tropical storm Isaac along the way. Our Workhorse chassis performed flawlessly during the dry days but spit and sputtered in the rain. Anyone else had this problem and if so how did you deal with it. (other than staying home in the rain)?
Welcome to iRV2.com! You've come to the right place for all things RV. You will find a huge resource here down below in the Chassis Club section, and the Workhorse forum in particular. I suggest you search there, and I am sure you will find plenty of info about your issue. Most of those will be older threads, but they contain many solutions.
Since your missing problem occurs only when driving in rain, IMO your air filter box is probably not completely sealed, allowing a fine mist to be sucked in until the air filter becomes so saturated that the moisture is affecting the MAF, and that is causing the ECM to mis-behave. I think you will find some pictures HERE:http://www.irv2.com/photopost/showph...ser=19091&sl=e
that I posted years ago showing how I fixed mine.
Good luck, and again WELCOME!