About to drive myself nuts. Wifes tahoe leaking

[93civEJ1]

Ok so a couple of weeks ago her check light came on and I ran a scanner on it and it came up p0523 and p0521 if I remember right. I noticed her oil pressure gauge was going crazy and sweeping back and forth and then not at all. So I replaced her sensor. It started acting normally again but I started noticing oil like crazy on the driveway. So I checked that sensor and sure enough it was loose. I didn't get it good or something. Tightened it up and still the same. So I took it out and looked and the seal on the sensor was bad as the glue was allowing the plastic part to spin around inside the metal. I took it back to the store and got a pressure sensor socket and a new sensor. Made sure I got it in there good and tight / snug and cleaned the oil ujder her carriage with a rag. Checked later and all still looked good after driving etc. Well tonight about a week and a half later I noticed two little drip spots in the garage so I just now climbed under and ill be damned if there isnt oil again on the bottom of the trans bell housing and sway bar and areas under her truck. It appears it is coming from up high but how could it be leaking still from that sensor area. What am I doing wrong? This dang thing is about to drive me nuts. I don't recall any leaking on her tahoe until I changed that sensor the first time and now I can't get it to stop obviously.

 

[denalianyone]

Check the return lines under the splash guard. They tend to leak from the ends.


Sent from my iPhone using Tapatalk

 

[NGAneer]

Worst thing could be the valley cover I guess. Make sure your oil filter is on tight and make sure your drain plug seal isn't worn out. I had a bad drain plug seal when I bought mine and it would cover the lower part of the trans in a film of oil just from running down the road. Instead of drips, you get a mist of oil onto your trans.