Agreed, the smaller return hose and larger "J" hose are common. Another leak source is the high pressure hose at the rubber crimps right above the alternator.nissanfreak12 wrote:Clean it all off, let dry, then turn it on see where its leaking. Its not easy. Another option is replace small things, one at a time and see if it stops. Start with the return hose. Thats the cheapest one and easiest to do.