oil or ATF on bottom of bell housing.

[zerodevil]

well today i was doing some maint to my truck, thermostat, sensors, oil. and i found the bottom of my bell housing to be coated with still wet oil. the engine oil is aok and i there is pleanty of it. what and where is that oil coming from? there is a pretty substantial ammount on the outside of her. i figured if i had a bad rear main seal i would be losing oil in engine real fast. bad TC? dieing transmission? im not sure what to think here.

 

[jaydez]

If its brown its engine oil. If its red its transmission oil. Only way to tell where it's coming from for sure is to pull the transmission out. do a quick search on how to check the transmission fluid. you need a special adaptor for the drain plug to check/fill it.

 

[2TimingTom]

Or you might be able to clean up everything with liberal amounts of brake cleaner and a rag, drive it for awhile and then crawl back under to see where the leak is.

 

[Spdrcer34]

Oil WILL leak past the rear main seal if you have a lot of miles when you park on a steep incline. It's normal. It's also helping keep your chassis lubricated a little....LOL

If you are having oil pressure issues, or over heating issues I would look at it closer, and possibly address it then.

Ryan

 

[zerodevil]

WELL THEN! i scooped some off and had it checked out by my mechanic and it came back as engine coolant + road grime. replaced manifold gaskets and im AOK. thanks for the ideas guys! was quiet a bit of a scare, as i didnt want to replace the rear main seal, or the transmission / TQ.