ok so i replaced my rear main seal a bit ago and then on the way to my last vacation going down the freeway, which was flat, at around 70 ish, i see oil smoke going out the back once again and after a tow (thankfully AAA covers 100 miles and i was 95 from home) i took my dads truck, im gonna sell it now cuz im just over it and gonna try and build up my other one, but i need to fix it to sell it, im thinking the pcv hose is clogged and its building up to much pressure, so im wondering if this could be the cause of it blowing out?

 

What is a rear mail seal?

 

lol ment main :P shh its hot and im tired from working :P

 

Might also be the front transmission seal. I would get under there and check what color the fluid is.

You could always hood fab a shield to keep it from dripping on the exhaust.

 

from looking around its defiantly oil, it doesn't leak at all, not 1 drop when driving it around town, but once it gets going down the freeway for like 10 min or so it just blows a bit of oil out all over everything :-\ im gonna just take off the lift and sell it and put it on my other Cherokee but i couldn't live with myself selling it to some unsuspecting person :P i figure if its to much to fix i could at least tell them whats wrong with it :P

 

Yes it sounds like you have a clog in you pcv system possible.

Another good way to tell is if you have the stock air box is to take a look at the air filter and see if oil has been spraying on the filter.

If so then you have a a clogged hose of pcv valve.

 

thats the crazy part, when my other one`s clogged the air filter got splashed with oil so i knew there was a problem and fixed it right off, but this one doesnt leak any oil into the air box which is why i dont think i ever noticed it till it blew out again

 

Is the oil filter adapter leaking down the block and blowing back at highway speeds?

 

not that i noticed, but ill defiantly check it out more when i see it again this weekend, its being stored at my dads house atm :P i dont recall seeing it tho but wont hurt to check again