89 xj 4.0 auto. So the other day I noticed a bad oil leak coming from the rear main seal area. Today I replaced the rear main seal and put a new one piece gasket on. I then drove around for a while and noticed it's still leaking, but it's def. not the rear main. The oil seams to be coming from the back of the engine up higher but it's not the valve cover either (new and dry as a bone). Is there anywhere else oil can come from????????? Thanks.

 

YES the oil filter bracket has o rings that may leak...Tj

 

yes there are 3 o-rings for the adapter bracket

 

Sorry forgot to mention those are also new and still dry.

 

distributor gasket,or oil pressure sending unit would be the next place to check

 

Just checked the distributor and oil sending unit and they are both dry. Could it be a freeze plug??? It almost looks like it's coming from the CPS??????? Is this possible???????????

 

freeze plug would be antifreeze,what about dip stick tube,not sure on the CPS,valve cover gasket is thats left but youchecked that.What about CCV or oil cap,head gasket.

 

It looks like its coming from the access plate for the CPS but I've never changed one so I'm not sure if there is oil in there or not??????

 

I haven't changed one either,so I don't know.

 

If it was a head gasket I would think anti-freeze would come out. Thanks for the help. Hopefully someone knows about the CPS.

 

just throwing ideas,my leaks were all around the oil filter adapter and distributor base,oh and my valve cover

 

Yea I checked all those common areas, I just can't figure this one out. I'm gonna clean the engine off then check again.

 

I replaced my cps and boy was that pita. There isn't any oil near the cps, I have leak too and it didn't even reach over there. The only gunk I had near my cps was mud. So no I don't think you cps is your problem.

 

i had the same problem . so i started the motor and found a nice little stream coming out of the end of the oil sending unit . didnt even get the sending unit dirty . might not be it but you might give it a try

 

2 years since 1st post guys....