This is a 7.5L (460) in a 1986 e350 Econoline Cutaway RV. Just before we had it towed, there was a loud pop and hiss from that capped vacuum port. For the
1986 Ford E350 RV in Beatrice, NE | Item DK8535 sold | Purple Wave
E350 Motorhome Stalled out - Ford Truck Enthusiasts Forums