Questions about Vapor Lock

Vaporlock is the 3rd most common cause of car breakdown. This is our band's motto. We got off a simpson's episode where bart is quaterback for the football team. He needs help and all of a sudden, Joe Montana comes because his car broke down. He was going to show bart some tips on playing but then his wife figured out that it was just Vapor Lock that made his car stall and that is how the story got started.