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Topic Review (Newest First)
12-08-2012 10:19 PM
Capp35 The last 4 on each side were not tight.
Lets see if it helps.
12-07-2012 06:52 PM
Old Dogger Before spending your money to get the rear seal changed, check and make sure that the last two pan bolts closest to the seal are tight. My friend had the same problem on his 4.0. We tightened the two bolts and his leak stopped.
Good Luck!
12-07-2012 02:40 PM
Capp35 2001 4.0, 60K
Leaking about 5 drops a week. I'll check the oil pan screw, but pretty sure it is the RMS.

Looks like oil gathering around the thick black rubber, between the oil pan and transmission bell.
That would be under the RMS, correct?

Also do you need to take that thin plate off on the trans bell to get to all the oil pan bolts?
04-10-2012 08:13 PM
RamblinWrangler 96k, leaky RMS! Let me know when you guys make T-shirts, I'll join the club.
04-08-2012 10:51 PM
Carlo Sport 04 [Repair] Rear Main Seal Replacement

Try this site above, it helped me save a lot of money
The only advice I have is when it is time to put the gasket and oil pan back on. My recommendation is to put the gasket onto the engine block first and then put the oil pan in place. Also make sure the gasket seats nice inside the rear bearing cover!!!! That is where I made my mistake and had to do the job all over. I was trying to put the gasket onto the oil pan first and then put them in place together. Doing it that way you will never be able to get the gasket to sit right in the grove (bearing cover). They sell a gasket spray that is sticky that will allow you to place the gasket onto the engine block and then give you time to put the oil pan in place. Also what I found out after the fact is that you can buy these screw clips that screw into the engine block. These clips will allow you to snap the gasket into place and oil pan. Once they are in place you unscrew the clip and replace it with your original oil pan screw.
Good luck
04-07-2012 08:39 AM
Crazyflyingplastics my temporary fix is still holding up!


Quote:
Originally Posted by Crazyflyingplastics View Post
well, I crawled under the jeep to see exactly where it may be coming from. It wasn't the oil sending unit, definitely seemed to be the rear main seal. With a flashlight, I was able to see that it was coming right from the bottom of where it seals. I figured, it was worth a try and put some RTV around the area. So far no leaking. It may not look pretty and may just be a temporary fix, but better than dropping some cash right now.
04-07-2012 07:47 AM
dabolt55 RMS-M&G.... Mine too, prob. a drop every other day..
04-07-2012 07:39 AM
Smitty03
Quote:
Originally Posted by htkrph
no write up on how to fix it?
Go to You Tube and search. I need to replace mine also and I found a few videos on there how to do it. I haven't done it yet but looks pretty straightforward. I am only concerned about how tough it is going to be to break the bolts loose on the exhaust.
04-07-2012 01:27 AM
shockey67 Getting a quote tomorrow to fix mine. 97 4.0 105,00 miles. Doesn't look like fun fix, some things are worth paying for.
04-05-2012 09:21 AM
htkrph no write up on how to fix it?
04-05-2012 08:05 AM
trainsktg I found a leak at the back of the pan too...about two or three drops every few days. In my case all of my oil pan bolts were about 1/3 turn loose. I tightened them and so far the leak seems to have stopped or reduced significantly to where its not marking the floor anymore.

Keith
04-05-2012 07:51 AM
JKlapmeyer can I join the club too...2001 TJ 200,000+ miles it has a small drop just like the first pics so I'm guessin it is my rms too...i've suspected it fora while, and I think it's time to do somethin about it
03-03-2012 08:29 AM
Fortune Try one of the engine oils specifically designed for high mileage engines. One of their ingredients is call seal swell... it's purpose is to infiltrate seals and cause them to swell thereby decreasing oil leaking throught them....
03-02-2012 11:24 AM
Mr_RPM i just let mine leak, theres enough mud in there to act as RTV. LOL
So far i have never had to add oil so its just a slow seepage.
03-02-2012 11:08 AM
sawyert
Quote:
Originally Posted by superdavis78 View Post
I paid $380 for parts and labor, including the oil change, and cleaning the motor up....minus the valve cover gasket, which I bought a few days earlier. I had new spark plugs in the backseat, and they went and put them in too...no charge on the bill. I think I got a decent price for everything.
Ya thats seems like a pretty damn good deal.

Quote:
Originally Posted by R-cman View Post
That doesn't look half bad! I may try that until I save the dough to change it out myself. I was under it last night and it looks like you have to drop the exhaust from the header to the muffler before you can drop the oil pan.
Exactly why i didnt even feel like trying to look myself. Since i got a good deal on it im going to just let the mechanic do it. And replace the valve cover gasket myself after.
03-02-2012 10:27 AM
R-cman That doesn't look half bad! I may try that until I save the dough to change it out myself. I was under it last night and it looks like you have to drop the exhaust from the header to the muffler before you can drop the oil pan.
03-02-2012 10:06 AM
Crazyflyingplastics well, I crawled under the jeep to see exactly where it may be coming from. It wasn't the oil sending unit, definitely seemed to be the rear main seal. With a flashlight, I was able to see that it was coming right from the bottom of where it seals. I figured, it was worth a try and put some RTV around the area. So far no leaking. It may not look pretty and may just be a temporary fix, but better than dropping some cash right now.
02-29-2012 09:20 PM
superdavis78 I paid $380 for parts and labor, including the oil change, and cleaning the motor up....minus the valve cover gasket, which I bought a few days earlier. I had new spark plugs in the backseat, and they went and put them in too...no charge on the bill. I think I got a decent price for everything.
02-29-2012 08:35 PM
Crazyflyingplastics
Quote:
Originally Posted by doolyd View Post
$200 is a good price. Most put 4.5-5 hours labor so about $4-500 I think.
yeah 200 is a great price for a mechanic. At a Jeep shop(not a dealer), I was quoted 450 and the lowest quote was 350. The 350 was based on the mechanic looking it up and the instructions saying 3-3 1/2 hours. I would love to find a place for 200.

I may check the oil sending unit. The first shop who said it was the RMS, said that could also be where the leak is.
02-29-2012 08:13 PM
doolyd
Quote:
Originally Posted by sawyert View Post
I brought my 2001 Sport with 74k in today because it was leaking oil. And my local mechanic told me its the RMS... So guess i can join the club. Told me its going to cost me around $200 to fix it
$200 is a good price. Most put 4.5-5 hours labor so about $4-500 I think.
02-29-2012 08:10 PM
sawyert I brought my 2001 Sport with 74k in today because it was leaking oil. And my local mechanic told me its the RMS... So guess i can join the club. Told me its going to cost me around $200 to fix it
02-28-2012 10:36 PM
Raif I have a 97 with 148k. RMS is leaking, and I am waiting on a sunny day to replace it.
02-28-2012 10:31 PM
ajorosa My oil leak ended up being the oil pressure sender . The brass elbow on it was very loose. I cleaned it up and put new thread sealer on it and was able to make one extra turn from where it originally was. Washed the bottom of the motor and not a leak to be found. Saved my self some cash and time, for now at least.
02-28-2012 10:16 PM
Crazyflyingplastics it definitely seems to be quite common, regardless of mileage. I'll probably just keep an eye on it and watch the oil level. There are a lot of other things my jeep wants right now!
02-28-2012 10:04 PM
doolyd 97, 118K I have the RMS leak.
02-28-2012 06:12 PM
superdavis78 Just had mine done...replaced the valve cover gasket, oil pan gasket, and RMS...problem solved...or at least for now.
02-27-2012 11:06 PM
sonofasailor3 05 with 68K... leaking RMS... we need to start a club!
02-27-2012 10:40 PM
nightop '06 with ~78,000 miles, RMS leak as well. Good times.
02-27-2012 05:58 PM
jefferyfghezzi 05 39,000 miles RMS
02-27-2012 05:46 PM
Crazyflyingplastics thanks all. Its definitely sounding like it is the RMS, since the valve cover was replaced in january. I figure if those additives even work, they are only a quick fix. I'll probably just bite the bullet and get it taken care of.
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