Jeep 4.0L Oil Pan Gasket & Rear Main Seal Replacement

Автокөліктер мен көлік құралдары

This week we are back to work on the 1999 Jeep Cherokee XJ. Today I will be dropping the oil pain to fix a much needed leak. Today we will be replacing the oil pan gasket, rear main seal, and engine oil pump. This Job will be identical to all Jeep 4.0L found in Wranglers, Grand Cherokees and Cherokees. Today I will show you how to do the whole job from start to finish by prepping the Jeep for the install and welding them in place. If you have any questions that the video does not cover, make sure to leave them below.
OutJeeping Merch Store: outjeeping.com
All Parts listed below are for a 1999 Jeep Cherokee 4.0L model year. Your year and engine design may vary.
Oil Pan Gasket: FEL-PRO OS34308R
Oil Pump: MELLING M81A
Oil Pump Pickup: MELLING 242S
Rear Main Seal: FEL-PRO BS40612
Music Credit:
The Wrong Way by Silent Partner
Pickup Truck by Silent Partner

Пікірлер: 71

  • @Soysauce315
    @Soysauce31511 ай бұрын

    Just want to say thanks for making such a great step-by-step tutorial on how to do this. Finished the job on my stock ‘01 XJ last night and couldn’t have done it without this video.

  • @OutJeeping

    @OutJeeping

    11 ай бұрын

    Glad it helped!

  • @jonathanortiz1411
    @jonathanortiz14117 ай бұрын

    This took me three days to complete, the oil pan was by far the most difficult part getting it back in. I can't imagine documenting that process, awesome job on the video!

  • @Skiridr22
    @Skiridr22 Жыл бұрын

    I had both done to my 00 XJ a year ago, she’s still running with no leaks 236,000+ miles 👍🏾😎

  • @swatscorner
    @swatscorner Жыл бұрын

    Getting ready to do this right now! All the parts are in - thanks for the video!

  • @als.688
    @als.688 Жыл бұрын

    Dude hellyes this the one we been waiting for!! haha but fr wish this was up when i had my 99'. Your vids were always the closest i could relate to when fixing my 99' xj and helped me thru A LOT bro 🤙

  • @yipeeiaye
    @yipeeiaye8 ай бұрын

    Recently bought an XJ and have been working on it for a couple months - gotta say that your videos have been a HUGE help! Thanks for sharing great content

  • @drgil65
    @drgil65 Жыл бұрын

    Always great Jeep XJ instructional videos from you Austin. Had done this last summer on my stock 99 XJ, had to use a small 1 ton bottle jack to get enough clearance to get my oil pan out and back in. Now doing my cat back exhaust. Thanks again for your videos.

  • @Cantinatollo1
    @Cantinatollo1 Жыл бұрын

    Young man, great video with lots of detail. Thank you for sharing.

  • @watsonswindowtinting
    @watsonswindowtinting6 ай бұрын

    Thank you bro!!! I just finished my 2001 xj, exactly to your plan and no leaks on the oil pan gasket and the rear main. You got this my dude, really good instruction. keep on!

  • @watsonswindowtinting

    @watsonswindowtinting

    6 ай бұрын

    you got any tint questions just let me know lol

  • @Mrshibbs3291
    @Mrshibbs32918 ай бұрын

    Excellent video just got done with this job yesterday with the help of your video and oversight from a experienced mechanic at work. The bottle jack trick did not give me enough clearance on stock height with my 99'. Ended up having to lift the motor AND disconnect the upper control arms. This is one of the best videos on KZread explaining this process, thank you for posting this!

  • @winder390
    @winder390Ай бұрын

    Great video. Just did this on my 89 comanche. 2 comments: 1. To get the pickup on the oil pump, I found it easiest to clamp the pickup in a vise with wood blocks and hit the pump rather than trying to hit the pickup. I also covered both mating surfaces in gear oil. 2. Fel-pro gaskets are not supposed to be installed with RTV, so I elected not to. My comanche is a project car, so I won't know if this was a good decision or not for awhile when I finally get around to starting it.

  • @GF_Burke
    @GF_Burke Жыл бұрын

    Nice man. I've had all the parts ready for my 98... just haven't done it yet. ha. But I'm sure I will use this vid again this summer.

  • @chrispurzer9461
    @chrispurzer94616 ай бұрын

    ...clever idea to zip tye the gasket. Many thanks!!

  • @dalebailey1844
    @dalebailey184414 күн бұрын

    Thank you for the INFO.

  • @zakiramjan9822
    @zakiramjan98222 ай бұрын

    Awesome video bro, exactly what i was looking for.

  • @ethansikora6524
    @ethansikora6524Ай бұрын

    in order to get my oil pan out on a completely stock xj I had to take off both shocks, the steering damper entirely(which I had to drill out as well), then take off the passenger side upper control arm bolt(only the 1 by the axle). this still wasn't enough for me to get it all out, so I used 2 bottle jacks and placed them near where the shocks would go and forced the axle down an inch or so more. then the pan just fell out. getting the oil pan in and out was easy with this, especially with bungee cords to hold back the trans lines in the front.

  • @dsgaragedavid1987
    @dsgaragedavid19873 ай бұрын

    Thanks bro I enjoy your videos always very helpful. Keep up the good work I have a 1998 Jeep Cherokee sport 4.0.

  • @kingarthur9157
    @kingarthur9157 Жыл бұрын

    Same, get on it this weekend! Including the starter replacement. 99' btw

  • @JBenedict02
    @JBenedict02 Жыл бұрын

    I've had this problem since I bought my jeep 3 years ago at 156k miles. Now at 204k I think I should just get it done and over with. Putting about 3 quarts of oil in a month at this rate. This video will be helpful when I get around to doing it!

  • @Theadventurecollective
    @Theadventurecollective Жыл бұрын

    This is a job I have done, I went through and god I never ever want to do it ever again. It doesn’t leak a drop anywhere since and I hope it stays that way, though I still say it’s worth it even to just see the health of the engine from inside

  • @tonythomas5068
    @tonythomas5068 Жыл бұрын

    I use my engine hoist and I chain the axle to the legs to spread it enough to get the pan out

  • @citizen4power
    @citizen4power2 ай бұрын

    Don't need the zinc additive with the Rotella. Got over 350k on my 98 XJ,been running T5 for the last 100k or so. Love your videos , gonna do my pan ,pump n seal soon.

  • @BUKWulfSh0t
    @BUKWulfSh0t Жыл бұрын

    Im doing this after I replace both my 02 sensors on my 97XJ but might take me a day or 2 lol

  • @officialWWM
    @officialWWM Жыл бұрын

    I need to do this too but it’s such a hassle 😂

  • @mrkultra1655
    @mrkultra16556 ай бұрын

    Thanks. Try doing this with a stock height XJ. Pain in the ass. I did it about 6 weeks ago. Was up on the lift at my shop, though. Still, I had to remove the oil pump before there was clearance enough to remove the old buggered up pan. Did the pump as well as the rod bearings, because my oil pressure was pretty low at idle once the engine got warmed up. Guess who has to do the rear main again tomorrow? This guy. I don’t think I remembered to put any RTV on the rear main cap before I put it back on. I have an ‘01, my rear main seal doesn’t have the ears on the cap side, just two half moons.

  • @OutJeeping

    @OutJeeping

    6 ай бұрын

    Yup in 2001 they changed up the rear main design. That's one thing I wish I would have changed as well was the rod and main bearings since it would be so easy to get to.

  • @moejr14
    @moejr142 ай бұрын

    Did you use the little piece of paper to get the upper seal started?

  • @michelantoniomorin2201
    @michelantoniomorin2201 Жыл бұрын

    💯💯

  • @ryanwest5804
    @ryanwest58046 ай бұрын

    Does the cotter pin come out of the pump??

  • @matthewzoelle9149
    @matthewzoelle9149 Жыл бұрын

    So for your next video can you do the “O” ring inside the oil filter housing? I hear it’s a pain to get that housing off.

  • @OutJeeping

    @OutJeeping

    Жыл бұрын

    Yup plan to do that next. That is the only place I'm leaking oil from now.

  • @williamdomey7584
    @williamdomey7584 Жыл бұрын

    I replaced the oil pan and oil pump and pickup tube on my 2000 Jeep XJ. The pump was filled with sludge and my oil pressure had dropped to 0. The new pump when the engine is idling is at 10 psi. Do you recommend running a cleaner thru the the engine to try and clear up the sludge? Your videos have always been very helpful.

  • @OutJeeping

    @OutJeeping

    Жыл бұрын

    Maybe some Berryman, seafoam, or a quart of atv and then change the oil soon after. That is what I would try first but there are many other brands of engine flushes to choose from.

  • @nalgene247
    @nalgene247 Жыл бұрын

    I'm thinking you must have a lift on that XJ for the pan to drop out so nicely. I have changed the gasket on a 2" lifted and a stock height XJ and the latter is a royal pita. Anyway, just clicked here because you have good tutorials and I needed to know where the studs go. Nice vid.

  • @OutJeeping

    @OutJeeping

    Жыл бұрын

    Yup I mention that my Jeep was lifted. Still struggles a little bit with a 3" lift.

  • @nalgene247

    @nalgene247

    Жыл бұрын

    @@OutJeeping I must have missed it by skipping around.

  • @happycommentator6773
    @happycommentator6773 Жыл бұрын

    I was always told if I was going to tackle this job to use a specific sealant from Mopar for the rear main seal. I don't remember the technical name for it but,it would seal in oxygen less environments. Did you ever hear the same thing?

  • @OutJeeping

    @OutJeeping

    Жыл бұрын

    Nope, any heat and oil resistant rtv brand should work just fine for this job.

  • @ky0611
    @ky06118 ай бұрын

    I replaced my rear main seal and starting leaking worse. Im not sure what i may have done wrong??

  • @TheChillBison
    @TheChillBison5 ай бұрын

    Fantastic video; my 98 looks very similar underneath despite only having 115k miles, so probably going to do all these seals and gaskets. Quick question: why snap the oil pan gasket to the block instead of to the pan since you're using RTV anyway? Is it just because you have to finagle the pan so much and the gasket may slip out of place? Also, for a stock-height Jeep, would it be easier to remove the sway bar, shocks and anything else that would allow the axle to drop lower? Or is that a bigger pain than the alternative?

  • @OutJeeping

    @OutJeeping

    5 ай бұрын

    It can be done either way. But like you said the pan gets finagled in place and has a less chance of getting broken or dirty when it's on the block. For a stock ride height Jeep, I agree to drop that sway bar and maybe drag link too, to get that axle as low as it can be.

  • @Rmehki
    @Rmehki Жыл бұрын

    I did this awhile ago in my 98 except for the oil pump. What was your oil pressure before and after the oil pump? I’m at 15-20 psi HOT idle, and always about 50 psi when on the throttle.

  • @OutJeeping

    @OutJeeping

    Жыл бұрын

    It increased the overall pressure about 10-15 psi

  • @RandolphKim
    @RandolphKim6 ай бұрын

    Thank you so much for all your instructional videos! Also, where is your Exhaust Downpipe from? Thank you!

  • @OutJeeping

    @OutJeeping

    6 ай бұрын

    I got mine from Walker, but it's junk and doesn't last, so next I'm going to buy a Northeastern stainless one from ebay.

  • @RandolphKim

    @RandolphKim

    6 ай бұрын

    Thank you so much for the response! To be honest, I've been stressed out, haha. I got a walker exhaust kit and a new intake/exhaust gasket to swap out my downpipe, but after hearing that, I think I'll wait and order the one you mentioned as well.

  • @OutJeeping

    @OutJeeping

    6 ай бұрын

    @RandolphKim Well the walker front pipe has lasted 4 years so far. The issue I have with it is that the exhaust mount was not bent correctly and rubbed on the exhaust crossmember. I tried to rebend it, and it cracked the weld and put a small hole in the pipe that is a noticable exhaust leak.

  • @RandolphKim

    @RandolphKim

    6 ай бұрын

    @OutJeeping oh 4 years?! I see. In your opinion, what direction should I take? - I currently have my entire walker system. -My old factory downpipe, which is in decent condition, but the PO cut it short, and now I have about 1-2 inches from the cross member 😅 so adding a cat is much harder. -Or should I go to the exhaust shop and get a custom stainless steel? I really appreciate your help and response!

  • @OutJeeping

    @OutJeeping

    6 ай бұрын

    @RandolphKim It all depends on your budget. If you got the funds, I would go to a shop for a custom stainless exhaust. Walker would get the job done, but if you live in winter climate like me, it may rust out faster. Northeastern stainless from eBay is decent for a cheap replacement that will hold up better than walker. However, it's only 304 stainless and not 316. 316 stainless will last a very long time.

  • @johnevangelista3528
    @johnevangelista35287 ай бұрын

    Do you need to wait 24 hours for the RTV to cure before you add the oil? Thanks for the video

  • @OutJeeping

    @OutJeeping

    7 ай бұрын

    I don't usually, by the time the jeep is put back together, it's usually a couple hours later before I put in oil.

  • @AJFRAN3
    @AJFRAN36 ай бұрын

    Do all xjs need that zddp stuff. I have a 95 xj sport

  • @OutJeeping

    @OutJeeping

    3 ай бұрын

    Its recommend since not a lot is found in modern day motor oils.

  • @pedroarroyo9684
    @pedroarroyo96846 ай бұрын

    The plastic cover you removed onder the motor i can't bay that cover on line like autopart ebay

  • @OutJeeping

    @OutJeeping

    6 ай бұрын

    I think they are discontinued.

  • @moserbuilt8936
    @moserbuilt89367 ай бұрын

    Did you prefill the oil pump before install?

  • @OutJeeping

    @OutJeeping

    7 ай бұрын

    I did not. It would all drain out in the I install anyway. It's the antidrain back valve in the oil that prevents oil from draining after each run.

  • @moserbuilt8936

    @moserbuilt8936

    7 ай бұрын

    I already installed mine but I didn’t prefill so I just making sure it would still prime.

  • @Spruce-Bug
    @Spruce-Bug Жыл бұрын

    Does that have zink in it? the oil?

  • @OutJeeping

    @OutJeeping

    Жыл бұрын

    More than normal engine oils plus I put in a zddp additive.

  • @gerogianoffroader4278
    @gerogianoffroader427810 ай бұрын

    I have changed it 3 times, but the oil is still leaking, why?

  • @OutJeeping

    @OutJeeping

    10 ай бұрын

    Could be a number of things. What side is the leak coming from?

  • @gerogianoffroader4278

    @gerogianoffroader4278

    10 ай бұрын

    @@OutJeeping Engine oil flows from the transmission sump

  • @kenlowe8659
    @kenlowe865911 ай бұрын

    I love to see Melling products. I used to set up and operate 6 spindles screw machines back in the early 1990s. I machined a ton of different oil pump shafts. Melling produces great products.

  • @gersonruiz1714
    @gersonruiz1714 Жыл бұрын

    What wheels are those?

  • @OutJeeping

    @OutJeeping

    Жыл бұрын

    Rubicon Extreme Wheels by Quadratec

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