I have a 1985 caddy fleetwood brougham with the infamous 4.1 liter engine and I have a major water leak at the rear of the engine. The leak looks to be coming from the intake. It is above the heads so I do not think it is a head gasket. There is no water in the oil so it is not mixing with the oil. I am wondering after I take the intake off should I check the head gasket for leaks also.