cclark1788

I have a 94 cherokee 2 door sport with the 4.0. I have an oil leak from somewhere on the paainger side. I have already replaced the valve cover gasket and the oil filter adapter o rings. I cant seem to figure out where the oil is leaking at. If i run it, it covers everything on the passinger side so i cant figure out exactlly where its coming from. Im pretty sure its not the rear main and its not the distributor leaking. Where else could it be coming from? Any help will be appreciated. Thanks

BillardCrow

can you post any pictures?

RTorrez1

Double check your oil filter adapter, oil filter and make sure to check the oil sending unit.

s346k

clean it off, start it up and watch it run.

cclark1788

I'll try to get a picture today

cclark1788

I did double check the oil filter and adapter and the oil sending unit is new as of yesterday. I dont see any leaks around them that's why I'm confused. I don't know what else on that side that can. Be leaking

cclark1788

I have washed it off a few times and I can't find any leaks while its sitting still. But after I drive for a little bit there is oil everywhere. Its really irritating

XJriot

Distributor is on the passenger side and that is prone to leaking too. Did you check that?


Edit; never mind I see you checked it now.

s346k

I dealt with a problem similar to this on a lt1 swapped 1972 el camino. it had an obvious oil leak, but wouldn't leak while sitting (idle or constant above idle rpm). turns out it was one of the pcv valves leaking. it covered the pass side of the engine in oil. was a real pita to diagnose. correcting it was easy, as we had different plans for the pcv setup anyway. hope this helps.

cclark1788

Here is the pic of my oil leak. I rechecked my valve cover gasket, oil sending unit, oil filter adapter and the oil is too high to be coming from the rear main. Is there 2 PCV valves on the valve cover? i replaced one but im not sure what the one in the back is. Also could it be possible that its clogged and blowing out the dipstick? or that i have a transfer case drop that the motor is tilted too far back and blowing out that way?? im lost and irritated i cant figure this out.

RTorrez1

Your pic doesn't work.

traver8

Check your CCV system - it sounds like it is not working correctly and you are blowing oil out of the dipstick hole. The rear valve should be connected to the airbox and pulling air from the valve cover. The front elbow is an inlet. This is somewhat different than many other vehicles.

cruiser54

　

I'd be looking up ABOVE first, and VERIFYING the source of the oil leak YOURSELF.

Everybody, who doesn't own or have to pay for or perform your vehicle repairs, loves to poke their noggin UNDER the Jeep and come out bearing the false bad news that your RMS is leaking.

Many mechanics, friends, people on Jeep forums who can’t see your Jeep from where they’re at, and good old Uncle Bob seem to enjoy telling you it’s the rear main seal. Has a catastrophic ring to it, doesn’t it?

A simple leak at the back of the valve cover or other source could produce the same symptoms. You don’t need to be a mechanic to figure this out. If you have good eyesight and a dim flashlight, you’re good to go on your own. Don't jump on the RMS/oil pan gasket bandwagon right off the bat.

Almost any oil leak on your 4.0 is gonna drip from the RMS area for two simple reasons.

First off, the engine sits nose-up and any oil will run back to the RMS area. Secondly, the RMS area is also the lowest point on the engine. Simple physics and the old plumber's adage apply here. "$hit flows downhill".

Valve cover gasket, oil pressure sending unit, oil filter adapter seals and distributor gasket, in that order, have to be eliminated as possibilities first.

Revised 02-26-2013