How to Fix a Transmission Leak in Your Car (Output Shaft Seal)
How to Fix a Transmission Leak in Your Car (Output Shaft Seal)

one, two, three, four! Rev up your engines! It’s time for the Scotty Kilmer Channel if your car’s leaking transmission fluid, then stay tuned because today I’m
going to show you how to fix a leaking transmission, and of course the first
thing is finding where the leak is, so you got to jack it up in the air see, and
in this case we can see that there’s transmission fluid all on the bottom
here, and when we go in where the shaft is, it’s all shiny and you can see the
fluid dripping where the shaft fits into the transmission, now that’s called the
output shaft seal, so we’re going to replace the output shaft seal on the
transmission, now here’s the seal this is no big deal, but you kind of pull the
drive shaft off to get it in, so here goes,
so take off wheel and take off the axle nut, then unbolt the brake caliper and
take that out of the way, off it goes, then you get the SPECIAL tie rod removing tool and take the tie rod off, it’s just bolts on over the tie rod,
then as you tighten it up, it pops a tie rod off, then it comes right off, and
look I’ve got a helper today, our cat, then you unbolt the strut and that off,
then slide the drive shaft out, now the shaft end has pushed into the
transmission, and you got to pry it out, so get yourself a little pry bar, then
crawl under the car with a pry bar and a hammer and pry it off, a few whacks and
out it comes, out comes the drive shaft, and there’s a leak and seal inside, you can
even see the fluid where it’s been dripping out, then you get one of these seal
pullers, and pull the seal out, I just go right inside and pop them out, and here’s
the old seal, this is supposed to be pliable but I can’t even move it now
it’s so old, since it’s old and dried out, it starts leaking, then you push the new
seal in, and they do make special tools to fit over the seal to push the seal in,
but I find a long piece of metal rod and a hammer tapped around the circle puts
it in just as well, you just tap it around the edge and feed it the whole
circle, and it’ll seat it nice, then you slide the axle in and give it a few taps,
so the ring inside seats in the transmission, and then of
course you have to put it all back together, tighten all the bolts up, put
the cotter pins back in, and bend them so they don’t come out, bolt the brakes back
on, put the wheel back on, and of course check the fluid and add any that
might have leaked out, so the next time your car starts leaking transmission
fluid, fix it yourself and remember if
you’ve got any car questions, just visit the Scotty Kilmer channel.

100 thoughts on “How to Fix a Transmission Leak in Your Car (Output Shaft Seal)”

  1. Domenick Shaget says:

    scotty, any reason trans leaks only when hot vs just a bad seal? meaning, if it only leaks when hot, it's more than just a seal? thanks! love it vids

  2. ARCHIE BUONE says:

    your awesome, hooah

  3. Loud n Proud says:

    Hey Scotty I have a 1995 Chevy k1500 with a 350 and a automatic transmission. Today when working on my truck I noticed a dime sized hole on the bottom of my transmission right by the trans fluid pan and I'm not sure if it is supposed to be there or if the transmission is bad but it is a clean hole and looks like someone took a drill to it. There is no transmission fluid on the ground and I can look in the hole and see gears. It was shifting perfectly this morning before I noticed it but now I'm afraid to drive it because I don't want to make anything worse. It might have been there for a while and might be supposed to be there but I'm not sure what to think of it. Any help is greatly appreciated. Love your videos.

  4. Art Garde says:

    Hey I got a 1992 ford f350 2wd and the transmission is leaking out of the transmission over flow thing only when the truck is running what do I do


    i have a 1990 Honda civic ex how much will that seal thing cost

  6. Niketa Wynn says:

    I have a 2006 Pontiac Grand Prix base leaking trans fluid.. New Gasket and pan but still leaks.. Nea tie rods new axles.. Mechanic doesnt know why it leaks.. he says he checked everything but cant find where it leaks.. I have a lot of spots on the street where i park.. What can i do?

  7. Chris Story says:

    Hey Scott, I'm new to cars & i have a question on a car i just got & i added you on fb to chat. I see your videos & i just wanna make sure i do this right

  8. Munja says:

    save me $$$$

  9. Haze King says:

    What is best way to repair transmission cooler line?

  10. Chase Ramont says:

    So my transmission wasn't leaking fluid, but after a transmission fluid change, It leaks super bad whenever the pan goes back on. I have tried it with 2 different gaskets, and even gasket sealent but it keeps leaking. There is also no damage to the pan, or nuts at all. Any ideas?

  11. Vee Rich says:

    how can i fix my transmission leak in a 2005 nissan maxima

  12. Tony Johnson says:

    I have a 2007 Chevy impala that leaks transmission fluid.. need help

  13. Joe Cline says:

    hi scotty luv your vids I have a 98 CV interceptor I have a small leak from the inspection rubber cover under the bell housing I was yanked out from the snow I so I figured I a=can either ram a tree at three miles an hour or put some transmission sealer in there it is a real small leak and it's really cold 17 below for the first time since i got the car so I am thinking shrinking seal what do you recommend I do?thanks man keep up the great work!

  14. Gerald Nolen says:

    Man, that was way too easy for you. For an average guy we have to slow it down. 😂 of course

  15. jorasave says:

    Hi Scotty I am planning to change this very same seal on my 92 Nissan Sentra, but I have read in some manuals that the right axle must be pull out before the left one (where I have a seal broken) Is that true? And also is it necessary to drain the transmission fluid before this? thank you.

  16. Aaron Kark says:

    Awesome Scotty. What do you think about those "stop transmission fluid leak" bottles out there. Are any of them worth buying? I have an old Mercedes 450sl with a very slow leak.

  17. jimbola77 says:

    Excellent scotty thank you for sharing!!!!!

  18. Tabitha Miller says:

    hey Scotty I have a 2003 Cadillac DeVille it's started out as a small leak in reverse only replaced the ring and it's gotten worse it looks to be leaking above the pan and seals and pouring out but it's in drive when it does could it be this or the Cvc going into the tranny?

  19. Tamara Williams says:

    do I need to let my,truck sit for a while before driving again until I get it fixed Saturday

  20. Alen Yegiyants says:

    can it leack from reservoir tank? I just can't find where it leacking from. I open the Hood and all the liquid by reservoir tank. can you tell me if I need new one or something else causing?

  21. Michael Pyle says:

    I sure will fix it myself thanks for another impressive tutorial Scotty.

  22. 1ProudMa says:

    do you need to drop the transmission in order to replace the TRANSMISSION TORQUE CONVERTER SEAL in a 2011 Malibu with 2,4l engine?

  23. M McQueen says:

    what would be different with a 89 Toyota corolla awd??

  24. Kyle Sherman says:

    my driveshaft is bolted to the rear diff. its a whole nother beast

  25. MrDantana1 says:

    scotty scotty

  26. robert quarrick says:

    what's the cat's name?

  27. Ozias Realm says:

    man I wish Scotty lived near me , I'd make him my regular mechanic

  28. Willbilly1991 says:

    Hey Scotty love the channel I had a massive leak today and it drained all my fluid out on suspecting the pan seal is leaking cause that's where it was coming from I'm hoping it's a job I can do myself thanks for the videos

  29. Vic Cudiamat says:

    i tried that technic hammering it with the extension and it damaged the seal😢

  30. Tony Tone says:

    scotty the my bolts got ripped off. leaving a hole????

  31. Josh Jones says:

    Would this technique work on a 2004 Chrysler Pt cruiser with an automatic transmission?

  32. youngmauro12 says:

    What can I use instead of a seal puller?

  33. Tim Nelson says:

    1:38, did anyone catch that? "A few wacks, and out it comes"

  34. Pavel Golubenko says:

    Man I'm almost tempted to just drive over to where you are so you could work on my cars LOL

  35. Karen Smith says:

    we have a 2001 Isuzu Rodeo with a leak y transmission near the modulator to fix with  limited funds//thanks

  36. Iron Mountain says:

    Dude your energy is awesome, thanks for the vid!

  37. Noah Keeton says:

    I'll buy that 59 Chevy Apache at the end of you video

  38. pamela parker says:

    God bless you,scotty

  39. Fela Mingueta says:

    Thanks Scotty, you are the best. I hope i can work it out myself.

  40. Joey Himka says:

    You can be an enthusiastic youtube at any age including 83

  41. Harley Estrada says:

    Hey scotty my 2001 Honda Civic starts to jerk when I accelerate I tried reconnecting batteries and adding oil to the engine but I can't seem to find what's wrong any ideas?

  42. frank james says:

    Scotty is amazing

  43. commando602 says:

    Just under 3 minutes and you are good to go! it's that easy.

  44. ysidro Sedillo says:

    What could it be if the vehicle begains to tug?

  45. JC6817 says:

    I love it and it’s very thorough, but the average person can’t do any of this lol.

  46. Scotty Kilmer says:

    Things I used in this video:
    1. Tie Rod Remover:
    2. Sledge Hammer:
    3. Forked Tool:
    4. Seal Puller:
    5. Steel Jack:
    6. Jack Stand:
    7. Ratchet and socket set:
    8. Mechanic’s Tool Set:
    9. Flashlight:
    10. Disposable Gloves:
    11. Shop Towels:
    12. Common Sense
    13. Full HD Camera:
    14. My computer for editing / uploading:
    15. Video editing software:
    16. Thumbnail software:

    🛠Check out my Garage to see what I use every day and highly recommend:

    ❗️Check out the Scotty store:

    👉Follow me on Instagram for the latest news, funnies, and exclusive info / pics:

  47. DjReprizal says:

    Best way to find out where leak is coming from of it isnt visible Scotty? Thankx

  48. DjReprizal says:

    2 mins fixing leaking driving shaft…should be on nasa pit crew. Lol. I know you cut it. Its just funny thinking you did it that fast. Lol

  49. DjReprizal says:

    Sorry didnt realize you already answered my question to someone else. Thanx take care.

  50. djrickymix1 says:

    No torque specs ?

  51. Lion Vision Studios says:

    Man I wish I lived close to you.

  52. animalcorvair says:

    i would not let the caliper hang by the hose

  53. Alvertos B.P. says:

    Good work and demonstration, you make the seal removal look so simple.

  54. Neo J. Ssk says:

    The cat !

  55. Darth Vhiran says:

    So, my transmission was acting up. When I started the car it was fine but putting it on reverse or drive it would make a funny noise getting up to 20 and the rpm would go up instantly to 3000.
    I looked underneath last Sunday and the dang thing was leaking everywhere but not when it was sitting still. I guess some spewed out of the same seal you changed in this video. What do you think Scotty?

  56. Luis Rivas says:

    Thank you mister kilmer for making all your knowledge available for everyone.

  57. Jerome Brewer says:

    You are silly and entertaining. Yet, most of all, you know your stuff. You probably have no idea how much you help the world in general. Thank you for being your brother's keeper!

  58. Britto Anthony says:

    Be real

  59. Thomas Hilton says:

    The cat(helper) was holding the tire down.

  60. Nicholas Brown says:

    I typically use a large socket to tap the seal in. Works like a charm!

  61. Roberto Sanchez says:

    Hahahaha funny ending video.

  62. Sohrab Budha says:


  63. Pierre Sutton says:

    Through the magic of video editing I should be able to do this in 3 min. Thanks Scotty 🙂

  64. Okusitino Tahitua says:

    God may bless those people who ignite their light and share it to people..they will even have more knowledge than before

  65. BoyzBB2 shizziq says:

    Have you ever worked on a 2014 Ford Escape I got a few leaks 1 when a guy changed my driver side axle he hit something and transmission started to leak now there's another leak how do I fix it without spending $8,000

  66. Chris Leicht says:

    05 neon trans leak Manuel

  67. TC MDK says:

    It looked too easy and very short to do

  68. Martha Mcmillen Creating the best you! says:

    Scotty thank youuuu.💕👌🏻

  69. Jordan Keepers says:

    I'm Jim

  70. Dan Webster says:

    You are a pro thanks so much I appreciate your efforts in making these gems. -PawPaw

  71. Keith Young says:

    My axel for my 2003 jetta came out pepboys fixed it but has been shifting rough and leaking trans fluid now..
    What should indo

  72. bondai Razali says:

    This channel is both informative and funny.. Im subscribing.. Haha..

  73. Titan Cleaning says:

    OMG you're such a lifesaver I thought my car was dead I wish you could have seen the look on my face when I seen and I pull the axle out and it started dripping transmission fluid oh no oh no oh no panic panic

  74. Valyu val says:

    Beautiful genius

  75. peter ruppert says:

    you make it look so quick and easy Scotty! lol thanks for the video! 🙂

  76. Curiosidades del Mundo says:

    Old John Lennon, is may first impression

  77. MrBrocephus says:

    All that for a seal wtf kind of car is this

  78. Zac Smith says:

    You rock bro!!! Thanx for taking the time to make these videos!!! 🤘🤘🤘

  79. PoopiePants Mcgee says:

    My 98 honda prelude manual sat for 3 weeks I come back and notice my clutch goes all the way to the floor.. It goes into gear when the car is off easy. How much is this going to cost? Roughly.. Help please. It must be just a leak right?

  80. Dee Jay says:

    U took all this mees aloose for that. Dang.

  81. WC says:

    Does 3rd Gen (2007-2011) Honda CRV has a output shaft seal? I'm suspecting my transmission fluid is leaking as the dealer just did a flush and changed the ATF transmission fluid 6 months ago but now my CRV's transmission fluid level is terribly low (I just filled it up). What are some of the common transmission fluid leaking cause with 3rd Gen Honda CRV? Thanks!

  82. Tiger Gray says:

    That's a 1990-1992 Corolla with 4afe motor. That car is made to run forever….

  83. That915Guy says:

    Scotty on about to have that same seal replaced how much does it usually cost to repair?

  84. Chris Wismer says:

    I did just this today. Twice actually, messed up the first seal, set it too deep the first go around.

  85. King Freedom says:

    Scotty killmoretailgates lol

  86. just Fun says:

    Thanks Scotty looks much more simple than what I imagined

  87. Rick Waters says:

    Would this repair be the same in a Saturn SC-1?

  88. STYLO209 says:

    He is The Chuck Norris of Automobiles He makes it look soooo easy !

  89. Sean Uptown says:

    Scotty, your an amazing man

  90. Wil Mill Man says:

    Hey, Scotty question , I have a 96 Saturn sl2, with a small leak in passanger side axle seal. Wondered if it could be causing a pressure issue with the trans, and causing my shifting problems?
    I've replaced all the solenoinds a while back.. But it seems like when it gets hot, I'll get a p0733 and p0734 code pop up.. And upshifts to quick, or even downshifts to quick even slowing down..

  91. Brittany Green says:

    Dude you’re too cool 😎 I had to subscribe

  92. Shanae Brock says:

    I have a question pertaining to this! I have a 2008 Kia Rio and it’s doing the same thing leaking from the trans, by the seals! I was told I need a whole new transmission, could this be true.

  93. Rob Vu says:

    Hi Scotty, I enjoyed your video very much. It was very helpful and pleasant. You're like the Mr. Rogers of automotive DIY'S.

  94. Luke H says:

    Alot easier on a rear wheel drive vehicle.

  95. Lendog19v2 says:

    Thanks for this. QUESTION: How far should the new seal go in? Got a 94 sentra automatic and there's no inner lip on the shaft hole in the trans housing. Should they be seated just flush to the outside in this case? Changed it a couple times and keeps leaking; dawned on me that maybe I'm pushing it in too far.

  96. Mario M says:

    I have a 1992 Lexus LS 400 with a similar leak do you have any tutorials

  97. GetoverYourself says:

    Don’t buy a Toyota, no leak.

  98. Logan Rafferty says:

    Hey Scotty, do I need to replace my old o ring where my new transmission filter would go in?

  99. Bruce Wagenberg says:

    In a World where everything is as easy as a Scotty video. Please make one on picking up girls way out of my league. Easy!

  100. Raul Garcia says:

    Did anyone notice the rotors lol

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