Oil leak ?? Need a little help

[txarkitekt]

Oil sensor leak. That many miles of vibration has most likely desolved/killed the seal in it. Poke a flashlight and mirror down there and check it out. Better yet, pull the intake off and get direct access to it.

My thoughts exactly. It would be wise to take off the intake to replace this sensor. Since it does have 170K, the underside of the intake manifold will be quite dirty. This will not only give you better access to everything, but it will give you a chance to clean everything well. As you know, the intake manifold gaskets are reuseable. Make sure to clean those well also.