How to Replace Crankshaft Seal on Your Car
How to Replace Crankshaft Seal on Your Car

one, two, three, four! Rev up your engines! It’s time for the Scotty Kilmer Channel if your vehicle is leaking oil and then
you crawl under and find that the oil is coming from the front of the crankshaft
here, then today’s your lucky day, because then I’m going to show you how to
replace a crankshaft seal on your engine now the crankshaft seal itself doesn’t cost
much, this one’s less than 20 bucks, but you got to take a lot of stuff apart to
get it out, now since the crankshaft pulley drives all of the fan belts here, you got
to take all the fan belts off first, now in this Toyota it’s pretty easy, you
loosen the bolts here and then you loosen this bolt here and the whole
pulley slides up and you can get this belt off, just pull on your wrench,
and the front gets loose, then you just hand loosen this one and then the fan belt
just slips right off and off it comes, now on this Toyota, the fan blade is in the
way the crank pulley, so we have to take that off clamping vice-grip pliers onto
the pulley of the water pump, then put a 12 millimeter wrench on the bolts and
pull real hard, then you can loosen them up, otherwise the pulley will just keeps
spinning and you can’t get the bolts off you can pull the fan blade out of the
way, just trying to be a little more careful than me and don’t rip holes in
your arms and now comes the tricky part get a giant cheater bar in a socket that
fits on the bolt that goes in the crankshaft pulley, stick it down here on
the bottom of the crankshaft and wedge the top against the metal on the frame
of the vehicle, then you just want to turn the key in the ignition really fast,
so the engine spins a little and breaks the bolt loose, like this, and now you can
just grab the socket and unscrew the bolt by hand and out it comes, now you
could use an impact wrench to get that crank bolt off, but then you’d have to
have an impact wrench a compressor and you have to pull the radiator out of the
car to get enough room, so this method works pretty good, that is if you have an
engine that spins clockwise if it spins counterclockwise, you can’t do it you’ll
have to get an impact wrench, then you can get a pry bar and try the pulley off
and here’s the crank pulley, we’ve got the new seal and we see it slides right
on, so it’s the right size, now getting the old seal out can be a real stinker, so I
always use my seal puller tool it fits in like this and pops it right out, you
just slide it inside the seal like this and tug on it, until it comes out, now this
old seal is 17 years old and it’s all cracked inside, that’s why it’s leaking
and we’ll just put a new one in, now there is a trick to getting the seal in
on the engine, you need a big socket like this, that will fit over the seal, so you
can tap it in place, as you can see you can put the socket over it and hammer it
in place, now before you put the crankshaft pulley back on, get a little
clean oil and rub it on the inside, so the shaft here has a nice bit of
lubrication, so the seal doesn’t run dry then you just slide the pulley back on
and put the crankshaft bolt back in and tighten it up, make sure you get it on
good and tight, and then of course put the fan in the fan belts back on, bolt
them on nice and tight too, then start her up and voila no more oil dripping from the
bottom of the engine, so the next time your engine starts
dripping oil from a leaking crankshaft seal, why not fix it yourself, and remember if
you have any car questions, just visit the Scotty Kilmer channel.

100 thoughts on “How to Replace Crankshaft Seal on Your Car”

  1. James Varela says:

    My 2003 Mitsubishi Montero Sport XLS is leaking oil like it owns every oil well in Iran and this is what the mechanic told me. $1500 . $1365 of which is labor

  2. Julius John says:

    Scotty, can i do the same with my Volvo s40 2003 ? its leaking somewhere under the car i dont know where just found the drops on fresh oil ??

  3. Thomas A says:

    love your channel , slick move with the key, your the best.

  4. nijo1993 says:

    I have a 94 Cadillac with a front main seal out. How do I fix that without taking it to a shop and/or pulling the engine

  5. King Kurdy says:

    thanks for all learning video . you are the best teacher

  6. Akinwale AKINRINDE says:

    +Scotty Kilmer , I own a 2000 Nissan Altima, the oil leaks from the crankshaft seal, I've twice changed the seal in two weeks and my mechanic even asked me to change the pulley. I've heeded his advice, yet the oil still leaks, kindly help me.

  7. Akinwale AKINRINDE says:

    +Scotty Kilmer , I own a 2000 Nissan Altima, the oil leaks from the crankshaft seal, I've twice changed the seal in two weeks and my mechanic even asked me to change the pulley. I've heeded his advice, yet the oil still leaks, kindly help me.

  8. francisco villa says:

    Wala""no more leaks

  9. francisco villa says:

    Do you know hot to replace a Northstar/cadillac motor oil pan gasket.without removing the engine?

  10. francisco villa says:

    Do you know hot to replace a Northstar/cadillac motor oil pan gasket.without removing the engine?

  11. derek helton says:

    hi my name is Derek Helton I have a 3.8 Series 2 engine with a new harmonic balancer and new crank seal I rtv the keyway and the crank seal but it still leaks any suggestions would be appreciated thank you

  12. Dylan Eastland says:

    I have a 1994 mitsubishi 3000gt base model and I'm getting leaking from my crankshaft shaft but it's on the driver side any thoughts?

  13. spoofer20 says:

    Scotty, some people say its important to mark where the pulleys/wheels are before you take belt of so they dont rotate and misalign. While other people say you dont have to. Im kinda confused to which is correct…

  14. David Stefanowicz says:

    U make it look so easy

  15. michael mwazha says:

    I have land crusser otto gear box is leaking oil on front i put newvseal but still leak any one with dear tell me.

  16. Benjamin Patton says:

    rips holes in your arm! hahah this dude is awesome

  17. Jbush009 says:

    how difficult would doing this on an 07 lexus rx350

  18. Michael Leigh says:

    hi scotty i have 1999 nisson patrol it too has a cranck drive seal leak same procedure to replace mne thnks mike

  19. AP100684 says:

    scotty is the man

  20. WS6-LSX StangKiller says:

    Could you upload some videos of fixing LS1 5.7 engine leaks? from heads to the middle top crank shaft? below the intake

  21. tele goose says:

    Scotty, I've got a problem need your advice. My wife's 2004 Honda pilot is leaking from rear main seal. I've got a quote to replace it for around $750. However I just changed oil and added something called atp-205 reseal. I saw it on one of your videos and researched it. Said it could help with this leak. Seems to have slowed and even stopped the leak. Should I still go through with the replacement?

  22. Franklin Hicks says:

    scotty, you are so entertaining. id watch you even if I didnt own a car

  23. Randy Minor says:

    I'd had the rear main seal on my 01 ZS1 Camaro replaced about 5 years ago and it had started leaking again. I used Lucas, Bardalls and recently had it replaced again. 1st time they put the seal in backwards. It started leaking and they figured out that my crankshaft was wobbling, rounding out the seal. Short of a rebuild, I'm hoping that ATP AT-205 Re-Seal will help. My Camaro is a NC Highway Patrol car, 1 of 160 B4C's, back and automatic and I wanna keep it..
    Do you think the ATP AT-205 will help at least slow down the rear mail seal?

  24. Bake been says:

    Scotty, Do you bother with a bit a sealant on the outside of the seal? also do you bother cleaning the area the seal will sit with some brake cleaning spay (on a cloth)?, just wondering , loe your vids btw, Hi from France

  25. 12TBJ34 says:

    I realize this is an old(er) video but can you tell me what year toyota engine this is? I've an '03 Toyota Corolla Matrix XR 1ZZ engine. Might you know if this engine is clockwise or counter clockwise? Thanks. BTW – Great video as usual.

  26. Cynthia Morales says:

    can my crankshaft seal be the reason my coolant mixed with my oil

  27. Killian Mills says:

    Hey Scotty was this a 4Runner that you worked on and if s, what year??!! Plz and thank you in advance

  28. Victor Rippe says:

    Hi Scotty how much do you think a mechanic will charge me to do this job I have a 2000 Toyota 4runner 2.7 i can't do the job my self cause where I live they don't permit you to do any kind of mechanic work.

  29. Joshua Carnine says:

    He has some pretty eyes

  30. Khampha Kongbounmee says:

    Scotty you are the man, your videos have helped me out so much; always straight to the point.

  31. julio zepeda says:

    hey Scotty, can I put high temperature​ silicone on outer side of the seal, I know you put oil on the inside

  32. Victor Rippe says:

    Hi Scotty i have the same truck a 2000 Toyota 4runner 2.7 i have to have the crank seal replaced what would be a fare price to pay some shop to do it also should i put a oem gasket thank you for the info.

  33. Gustavo Melendez says:

    Oh jijo de la chingada, you are the best, you are very rapdly

  34. phillip kinaga says:

    i oversee work in our workshop, we have recently recorded so much oil top up on a Fuso FV415 truck engine. what could you think the problem is?

  35. K Tom says:

    awesome stuff

  36. KFreelance_959 says:

    Had this problem on my 07 Scion tC …mechanic charged me nearly $600 -__-

  37. xxAbcelxx says:

    Wish doing this was that easy. Mitsubishi Eclipses are absolute hell to work with.
    Also, is it possible to just use some oil treatment to prolong the life of the seal? Can it stop it completely from leaking?

  38. Jerry Alejo says:

    same thing straight to the point thanks

  39. Randy Jones says:

    I have been watching you to scotty im starting to feel like i can do more stuff with my car i love your videos and fast and furious movies lol keep them coming can you do something on exhaust cleaning

  40. bruh bruh says:

    U make this look easy

  41. ace crusader says:

    if its got a cam belt its not that easy you have take all the cambelt off

  42. Scotty Kilmer says:

    Things I used in this video:
    1. Vice Grip Plier:
    2. Breaker Bar:
    3. Seal Puller:
    4. Ratchet and socket set:
    5. Mechanic’s Tool Set:
    6. Wrench Set:
    7. Flashlight:
    8. Shop Towels:
    9. Disposable Gloves:
    10. Common Sense
    11. Full HD Camera:
    12. My computer for editing / uploading:
    13. Video editing software:
    14. 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:

  43. Elizabeth Jansen says:

    Any ideas on neons? I've seen videos mostly divided between pulling the whole engine or just pulling the tranny. I'm a fairly small gal and sure can't pull a whole engine out even if I had a place to do it. I don't have $$ to get a mechanic to do it either.

  44. Miguel Garcia says:

    I wonder if he ever gets frustrated

  45. Zeviander says:

    Found this video looking for info on how to replace a CAT C-13 crankshaft seal. Left with some decent (unrelated) knowledge and thoroughly entertained. Liked and subbed. Love the grunts.

  46. Swaggination says:

    is crankshaft pulley and seal same thing?

  47. Mazarita Village says:

    Look at the Camera Scotty.

  48. Saint Peterson says:

    This is no DIY😹

  49. Bobby D says:

    In my case, the crankshaft sensor is broken and make a little spark around it. So I have to change the seal and the crankshaft sensor.

  50. Mryon Biller says:

    Hey Scotty I have a question I pulled my crank shaft seal out with a seal puller but I caused some damage to the lip where the seal sits should I be worried about it

  51. Darrin Edwards says:

    How do you change spark plug s in a Chrisler Intrepid 2001, 3.5

  52. mack cummy says:

    On my 2002 RSX I'm dong the clutch and thought I'd do the out tranny side crank seal. Only problem is it's as if the seal is stuck to the engine, like a burned pancake of a frying pan.

  53. uRiBiTo666 says:

    1:35 confirmed. Mechanics don't get cuts, they rip holes in their arms xD

  54. Noe Lopez says:

    Lol nice trick on using a breaker bar and using the engine power to break the bolt lose!

  55. Rick says:

    Lol.. just stick that breaker bar right against the side panel and bump the starter, then realize you stuck it on the wrong side, then go inside and call ems because you spun a breaker bar thru the window and into your wife's head😁
    If ya wanna be sure which way your motor to turns, just start it and poke at the fan with a finger or a screw driver. By the angle your finger was sliced off you can tell by the slope of the cut which way the motor is spinning

  56. Scott Buford says:

    2002 Toyota camry le 2.4L. After having the Serpentine belt,, harmonic balancer,, and the top t-bone mount replaced at a Mechanic shop,, 1 MONTH later… harmonic balancer just FALL'S OFF!!?? How does that happen?? He did put it back on… but every since then,, the belt is throwing black grits everywhere!?? oil is leaking,, and Now he says we have a leaking head gasket.???? PLEASE help. Thanks. loving your videos…

  57. Hunter Pinson says:

    Hey Scotty, I'm white and idk how to fix that can you make a video about it plzzzz??????

  58. Abiel Rodriguez says:

    Crankshaft bolt nice and tight?? Not good….it should be torqued according to specs.

  59. Zachary Symmes says:

    You are the best at quick explanations with car fixes. keep it up!!!

  60. Drift Prince says:

    Haha anytime I see a video with him I watch it just love his energy

  61. mygiguser says:


  62. Douglas Lee says:

    i had my rear main seal replaced on 2008 honda ridgeline 3 weeks ago but now it is leaking oil again. Would a repair shop ever use Lucas Stop Leak? Is there any way to know if they do? Or did?

  63. Laurent Sparks says:

    another tip to get the crankshaft spindle off without an impact wrench, take off the starter and have someone jam a flathead screwdriver in the fly wheel while you loose the connection 😉

  64. Russell Dilworth says:

    This is a dangerous way to loosen ur crankshaft bolt. …a lot of cars including Toyota use the crank bolt not only to tighten the harmonic balancer but also THE TIMING GEAR THAT SITS BEHIND THE balancer pulley… The gear at the moment the bolt comes loose will have to drive the timing belt and gear with only the key…. AND in some other new cars they don't have a keyway.. so this method will damage valves and engine when bolt comes loose! !!.. You MUST FULLY UNDERSTAND THE MECHANICS OF UR PARTICULAR CAR BEFORE USING THIS METHOD! !!!! I PERSONALLY NEVER USE IT! !!! .. GET SOMEONE TO PRESS THE BRAKES IN A HIGH GEAR. ..OR SCREWDRIVER AGAINST THE FLYWHEEL RING GEAR!!!!!

  65. Thefrench Fancy says:

    Thanks Scotty nice simple and easy to follow.

  66. Christopher Debbane says:

    there were so many things to take off and put back on i forgot what he was even trying to fix

  67. sony VH says:

    hay Scotty my car got front crank seal leaks so i got it change out..and i leaks even more do you know what happened ?

  68. Paul’s Containers Ltd. says:

    I’ve always wondered what are the journals on a motor?
    Are they the crankshaft bearings ?
    or the lobes on a camshaft that open and close the valves ?

    or is it something totally different ?
    does anyone know?

  69. Drift Prince says:

    I just love this guys channel

  70. Yianni Boulas says:

    How do you tighten the crankshaft pulley without its moving

  71. Ashwien Sewpersad says:

    Why is the car smoking( white smoke is it normal ? ) in de video at start ?

  72. MoneyManFernando says:

    He makes it look super easy. He did it all in three minutes. It would take me seven days working eight hours a day.

  73. Jamie Carter says:

    that engine didn't sound to good

  74. strake750 says:

    Cheers Scotty… You always make it look so easy,

  75. P Smith says:

    After 46 years of doing this, he makes it sound so easy. Man, it ain't!

  76. tayfun kilic says:

    i didnt get it when try to take off crankshaft bolt valve and piston change locations it is mean when fist piston up inteka and egzoz most be spac

  77. Muckman says:

    iv never seen a pully in this form

  78. Louis Kelley says:

    What if my engine is in side ways.what procedure or steps do I follow ?

  79. klmn o says:

    I love you scotty

  80. David Hollfelder says:

    On newer cars, you have to switch to off very fast, as the starter will continue to crank even if you let go of the key and start the engine!

  81. Nate A says:

    Hey Scotty, how did you tighten the pulley bolt?

  82. Kurt M says:

    which side of the seal is the inside. Both sides are not identical.

  83. 문태근 says:


  84. Larry says:

    Putting it back on is a damn pain when your motor keeps spinning

  85. jaimedc5 says:

    Hey scotty I had my engine rebuilt and it started leaking oil from that location 1 month after is still under warranty and repairshop says it's the harmonic balancer is leaking but harmonic balancer has no seal right? And sits in front of the crankshaft seal right

  86. John Fair says:

    You sure made that look easy. I have to do this on a first gen 350 chevy. I think I need a pulley puller to get it off.

  87. welcome to reality says:

    my mechanic told me my crank pulley on my 3.3 dodge is wabbling so it needs a new seal, but i told him there wasnt a leak… sounds like he is trying to drum up some biz…I think theres often some minor wabble in them when running… opinions?

  88. RealKeyyy says:

    How much does a mechanic charge fo fix this?

  89. Jacqueline Perry says:

    Dealership charged me 3100 to replace a rear crankshaft seal,motor later ruined, wasn’t the issue a bad pcv was the issue and it was the dealership recommendation.

  90. Angel Monsivaiz says:

    Scotty, I need help ASAP! I replaced my seal today, did everything properly, put everything back on and now my car will not start. I have a 2012 fusion 2.5 ford.

  91. George Funes says:

    Is the crankshaft seal the same as an oil pump seal?

    3vze Toyota Engine.

  92. Carlos Monroy says:


  93. brandon webb says:

    Does the seal bottom out when done

  94. Alfonso Rodriguez says:

    What about a steering shaft for a 2097 Jeep Wrangler?

  95. The Rolling Bear says:

    it cost around 600- 100 euro for my peugeot 206 so i dont repair it

  96. Freddy MALANGU says:

    Hi many thanks for the video, I have the somme probleme with my XC90 Volvo V8 4.4L? i did order the Engine Crankshaft Seal

  97. burningfeet 57 says:


  98. diego 920 says:

    How can I know for sure if my car is dripping oil from the crankshaft?

  99. Raymond Neuling says:

    When fixing a car I always go to Scotty Kilmer first. He gets to point and makes it plain and simple.

  100. richard cibrian says:

    We’re do u live so u can fix my car lol

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