Twoxentricx's point is perfect timing for me to suggest everyone with any sort of "adventure van" should frequently check under their hood for issues as he describes. During oil changes etc remove the dog house and any other part of the factory build in order to do a thorough inspection of anything critical to the engine's proper operation or affects reliability.
I myself will remove the dog house and all the air intake ducting (gasoline 5.4) back to the throttle body. I'm looking for chafed, melted, cut or other wiring maladies. Any high heat source that's too close to a wiring bundle has me moving it away and secured in place so normal bumps etc don't allow it to all fall back into a "dangerous" place.
I've seen these sorts of minor issues on my own completely street-driven vans. if its loose batten it down, damaged fix it but assure the cause is remedied too.
It would chap my arse being disabled, towed to a costly repair facility only to learn a bit of preventative maintenance might have avoided it all. We can't or shouldn't fall into that trap thinking since it worked yesterday all is well today.
Been there, done that and hope to NOT re-visit it!