@AlakAuto, based on what I know about the VQ35DE engine in your 2002 R50 Pathfinder, there are a few potential sources for your coolant leak. One possibility is the water control valve, which is located under the lower intake plenum at the rear of the engine. My guess is that the rubber hose connected to it might have failed. I hope I’m wrong about that, as it can be quite a job to access. Regardless, I recommend starting with a coolant system pressure test. Another area to check is the rubber heater hoses that connect to your heater core on the passenger side firewall of the engine bay. If this were the issue, I think you would have noticed that leak by now. In my experience, when those heater hoses leak, it usually doesn’t run down the oil pan. Doing a pressure test may also help you pinpoint the leak.
Chris.