Ehh

I just bought a 1993 Cherokee for 800 last week and I was told of an oil leak so I kept and eye on it and one came up 4 days later but it's not dripping back far enough to be the rear main seal, and also my power steering pump is leaking somewhere the cap I think. But I was wondering where it would be more common for these leaks and work from there.

tjwalker

1. Valve cover
2. Oil pressure sending unit
3. Oil filter adapter rings

Clean those areas a bit and observe

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, 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: “Crap 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.

jmrec100

whats the torque specs for the valve cover.

freegdr

Use Fel Pro and be done with it.