Replacing A Leaking Brake Master Cylinder

Scotty Kilmer, mechanic for the last 43 years, shows how you can replace a leaking brake master cylinder on your car. Visit Scottykilmer.com for free answers to all your car questions.






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23 Responses to “Replacing A Leaking Brake Master Cylinder”

  1. LOPEZ1562 says:

    i installed a new master cylinder but? i didnt bleed the cylinder but i drove it around to see if it was braking but it does but it brakes really slowly can i still bleed them even if u drove it around? also my car is a 87 mustang 5.0

  2. scottykilmer says:

    @LOPEZ1562 sure, but now you will have? to bleed all four wheels too, scotty

  3. FlippingPnoy says:

    Hey scotty, i have a 95 integra and every morning i hop on the car the clutch? pedal is always sticking on the floor, i have to pull it back up with my feet before i could get it to work. But then i have to keep on doing it while driving coz it makes it hard to change gear if i dont. And i hear loud grinding like deep toned sound when running above 25-30 mph and gets louder when going even faster. Can u help pls. Thnk

  4. scottykilmer says:

    @FlippingPnoy replac the? clutch master and slave cylinder first, they are breaking down. the sound is something else, like a bad wheel bearing. Scotty

  5. flashmovie010 says:

    Thanks Scotty, after watching your video, i fix this job by? my own.

  6. TheBucksatan says:

    I have a crx that had? a rusted out line I replaced it ,but ran the master empty with no brake fluid .how do I get all the air out I bleed all four wheels pedal still goes to the floor.

  7. scottykilmer says:

    @TheBucksatan if it has ABS brakes, you’ll have to pay a mechanic to bleed it , as you can’t bleed abs sytems without? a dealer level scan tool. If not, then there’s air in,keep bleeding away, or pay a mechanic with a power bleeder machine as I show in my video “how to bleed your car’s brakes. Scotty

  8. mariofreak91 says:

    I attempted to replace the master cylinder today on my 87 Corolla, but I’m having trouble bleeding the brakes. Tricky part is that I have 5 of what i’ll call bleeders for sake of getting the point across. 3 go into sort of a splitter (1 of those 3 is a short line that leads straight to the master cylinder…this one, when all are tight, after bleeding the? brakes, has bubbles and/or liquid coming out. If you wondering, the 5th bleeders is on its own and goes straight into the master cylinder.

  9. scottykilmer says:

    @mariofreak91? try bleeding it then at the whole system, bleed the right rear tire, then the left rear, then the right front, then the left front to get all the air out. Scotty

  10. MrElplateado says:

    Seriuosly dont change any brake parts without any knowledge , it is stuped and dangerous. Of course you can do? it but try to researc first.

  11. xMarinex93 says:

    Sup Scotty, I got a 96 accord that i bought used with 170k miles and the brake pedal sinks to the floor only sometimes though so i went to my mechanic to see how much it would cost to change the brake fluid because it is really dirty but he told me i should just replace the master cylinder for $200. So before i went to him i watched this video it looks simple but do i have to bleed all? four wheels as well?

  12. mariofreak91 says:

    @scottykilmer
    I didn’t take your warning on remanufactured master cylinders seriously enough.? It was missing some sort of gasket. I actually asked for a new one, but the shop said it would take a week to order from the factory. Over the weekend, a friend knew where to buy one on the spot. All is good now. Also, like you had suggested before, my handbrake now works since I changed the brake shoes.

  13. markof09041992 says:

    thanks for this movie I was trying to figure out how I can do it? all alone.
    Now I know how I can do it Alone.
    and now my car brakes well.
    thanks scotty.
    greetings martin
    of the Netherlands

  14. snowmangaggift says:

    hey scotty, ive replaced every part of my braking system, including the master cylinder yesterday and i STILL? have little to no pressure and a spongy pedal. What more can i do? ive bled for 2? hours yesterday and went through 1 litre of brake fluid.. im at a loss, please help! thank you

  15. lucianlovemusic says:

    i like this guy?

  16. shallpion says:

    @scottykilmer Hi scotty, I have a dumb question: I am trying to change the brake fluid by myself on my 01 altima, I want to give the long screwdriver a try, but do you know how many times approximately I need to use the screwdriver to press the brake? pedal to bleed the entire system? If there are too many then I probably will call my friend to help. Thanks!

  17. shallpion says:

    @scottykilmer Thanks a lot!. By the way do I have to keep? the reservoir cap off during the bleeding process unless I need to open it to refill the fluid? Thank you again.

  18. scottykilmer says:

    @shallpion keep it off so it? breathes better when bleeding.

  19. dirteeter32 says:

    well my ped is stiffer than a….. I push down on the brakes and they barly work and the pedal is solid, it’s got good? vaccume from the engine? is my booster bad help me scotty!

  20. scottykilmer says:

    @dirteeter32 usually? a shot brake master cylinder.

  21. calarooni says:

    After dissecting my ABS in order to get at my master cylinder, I managed to get everything changed and put back on correctly. Brakes felt fine until I turned the car on, and then nothing. Any suggestions?
    Also, thanks for making videos like this? one. They really help :)

  22. scottykilmer says:

    @calarooni you can’t correctly bleed an ABS system without a dealer level scan tool. so pay someone? who has one

  23. calarooni says:

    @scottykilmer Thanks a lot, sir. ? I got them working well enough to limp down to a mechanic. Keep on being awesome.


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