I have a 2001 2 wheel drive 3.5 pathfinder. In the past few weeks I have noticed a small red oil stain on my driveway. The stain is not under the engine nor is it under the transmission. The drip is midway on the outside right hand side of the vehicle below the passenger seat along the chasis. I removed 2 heatshields and just found a 4-way wiring harness, no hoses. So I think that maybe the leak is coming from somewhere up high and working it's way down the channel of the chasis to the low spot of the chasis. However, I can not see any obvious leaks from any hoses from what I can see under the hood and from under the vehicle. Any ideas? thanks