Wow that sucks, when he ran over the puddle did the car stall and hasnt started since? did he hear an explosion?Usually, the engine is destroyed, and has to be replaced I just got done helping a friend replace his girlfriends integra ls motor. She drove over a deep puddle with an AEM cold air intake, sucked water into her block, blew a rod and a large hole in her block, and caused enough damage to have to replace the entire motor. The tranny was ok but other than that there were not enough salvageable parts for a rebuild to be worth it.