Oil Leak (RMS?) Problem
 

Hello,

I am having trouble with an oil leak that comes out the little gap where the bellhousing and the engine meet.I had the rear main seal done in January (clutch had to be done) and found this oil leak within a week. Eventuallly managed to get it to the shop and had them take a look and they speculated it was the lower gasket. I changed the lower oil pan gasket but realized it was just how the oil caught on it as it came out. Put dye in and it is leaking from somewhere above that tiny slot in the bellhousing, no signs of oil leaking anywhere else. Peek through the bellhousing window and don't see any oil slopped around. I can have it idle for 10+ minutes, and hold it reving at 2500rpm and it won't leak. As soon as I drive it (down block and around, nice and slow) it leaks oil very fast. I can do this from a cold sit and leaks right away, or run it for 20 minutes and drive it a block and then it leaks. So it seems to me the leak comes when I engage the clutch.
Thoughts?

Thanks in advance for input.

Knowing what year would be a big help, so we know what engine you have.

Welcome to the forum

Yes, year and engine are needed?


Are you losing clutch fluid, check reservoir?


Park truck facing uphill, so oil level in the back of the pan goes up, see if it leaks more

Is it oil or ATF?
The M5OD-R1 manual transmission uses ATF(automatic transmission fluid), 1988-2011 Rangers used this transmission
Trans front seal can leak into bell housing

Hey all!
It is a 2009 4.0L.
Havent checked clutch fluid levels recently,
This is engine oil. Added UV dye, cleaned everything with break cleaner, and had second set of eyes to try and track the first drip.
I'll break clean it, get front end raised up, and see if any signs of leakage while sitting and at elevation. I've clearly missed a few things, is there anything else in regards to diagnostics I have missed anyone recomends?

Only other place besides the main seal is the Cam/jack shaft core plug, it should be coated with a sealant before installation because it can leak oil, its just above the main seal, so trans must be pulled to access it