[Silver_Dodge]

I have personally seen a truck die because the tail pipe was submerged. This guy was backing a boat into the water, and went a little too far, far enough that the rear wheels passed the end of the paved boat ramp. The tires sunk down into the the sandy lake bottom beyond the end of the paved ramp. The front end was sufficiently above water because the front tires where still on the ramp, but the whole rear was pretty well submerged. It acted the same as if you had put a potato in the tail pipe. Granted, it was pretty deep water at that point, and the vehicle was sitting still, not moving. It bubbled for a while, then it could no longer keep up and died. The intake and ignition electricals up front were free of water though since it was higher up on the inclined ramp, so it was indeed due to tail pipe being submersed.