I've rebuilt a number of master cylinders over the years and had no problems with them lasting. However, you DO have to carefully inspect the bore for any signs of corrosion pitting or localized wear before starting a rebuild. Given how many of us buy our parts online before we fully understand the repair, ordering a new M/C is the safest way to go. If any air gets into the disconnected lines, you will have to do a full bleed on the entire system and push those bubbles clear thru a wheel cylinder or caliper instead of just the local M/C as shown.

@JeredtheShy

2 жыл бұрын

You also run into problems with a vehicle being too old for OEM parts to be available, (anything over 10 years) so, while I support that idea, sometimes you just have to buy the best aftermarket part you can afford and hope for the best.

I extremely like you saying if you don't have any brake fluid loss because most people don't really explain and for people like myself I figured if I have a leak somewhere I would lose fluid.

I love your thorough my friend. Keep it coming!

@proclaimliberty2000

3 жыл бұрын

The Wakeup 👍😊

Paul I like watching your repair videos. You make it look so easy. And you explain what you're doing as your doing it. Thank you so much. It helps me a lot. God bless you.

@proclaimliberty2000

3 жыл бұрын

👍😊

@utubestalkerdotcom

4 ай бұрын

@@proclaimliberty2000 can you help people who might have this question: i see listed online that some brake master cylinders says (without ABS), but are not listed for sale (with ABS). does this mean that people should buy a part genuine OEM even if it looks the exact same as an aftermarket part. is the ABS part an additional wiring harness connection, or is it included inside the metal part of the master cylinder? [i realize that some people will be complete beginners, not diy auto enthusiasts, but want to try fixing it themselves, since they have access to KZread]

So pedal goes down so you change the brake master cylinder and not try to bleed the brakes first ?

@TempoDrift1480

Жыл бұрын

Sounds good to me?

@sususmongus2514

10 ай бұрын

i guess this is assuming you did that already

God bless u my man. I love your clear and thorough explanations to give. Can I do this same procedure to my rav4 2005 because I have the SAME symptom u portray on this video. Thank u 4 ur answer.

Good stuff, exactly what I needed to know.Thanks!

Well done, sir. Now would be a good time to bleed all the brakes to refresh the wheel cylinders with new fluid.

Thank you sir, you helped me save so much ,$47 for the master cylinder and brake fluid. Job was done by myself with a 2x4. Test drove it and now back in business.

@llroman7823

7 ай бұрын

Did you have to end up bleeding the brakes with this method?

@Paulkersey5921

7 ай бұрын

@@llroman7823 yes. it worked ,I think I did it five times just to be sure.(with the 2x4)

@davidhardcore704

6 ай бұрын

$47 ? Man where you get it for that cheap from ? It’s like $250 from what I’ve seen.

One of the best video, straight forward to the point. Thanks man

Finally a simple answer! Thank you

Thanks Paul. I really appreciate you and all you do. GOD bless!!!

Thanks for the information! was really helpful!

Very nice, someone that knew nothing about servicing a master cylinder could easily follow this guide!

Hey I just learned something new today . Thank you.

Awesome video. Thank you

Thank you very much big help for me stay safe.

Strait forward n easy to understand! Thanks

@proclaimliberty2000

3 жыл бұрын

👍😊

Excellent video!

Do the bench bleeding first instead of bleeding after mounting.

Thanks for making the video Sir

Best video ever about brakes

What is the issue with replacing the bad seals in the master cylinder?

Hah... that’s exactly what I’m doing right now! Good info.... thanks!!!

@proclaimliberty2000

4 жыл бұрын

Pete Stanhope 👍😂

Excellent right to the point vudeo..!!

@proclaimliberty2000

3 жыл бұрын

👍😊

You should also cover sinking brakes pedals due to vehicles with faulty ABS pumps.

@PandoraPX4B

Жыл бұрын

@red neck Vincent I started with the master cylinder. No go. Then I found out the pedal sinking to the floor was due to a leaky valve within the ABS pump. I went through three used pumps before I received one that worked. No more sinking pedal.

@michellegodden1044

Жыл бұрын

@PandoraPX4B currently have this issue at mo, new master and new servo fitted now looking at abs pump as wasn't sure as no codes or warning light appear

That's an excellent video...wasn't looking for that specially but excellent video... Hey, I changed the rear shoes and accidentally hit the rear cllylinder. The pedal goes to the floor. Do I just need to bleed that cylinder or go on bleed them all?

i almost thought this was Redd from that 70 show haha but very good video sir very well informed

I experienced the same thing when draining the brake fluid on the Dodge journey.

Thank you!

Excellent 👌

Very good video thanks

This video saved me time and money, brakes working again

Please respond... so I'm wondering if I run a tube/hose with 1 end connected to the bleeder screw on the caliper & the other end pushed inside the brake fluid reservoir & pump the brake pedal until theres only fluid running through the loop while the car is running & repeat this on each caliper will I have successfully bled the entire brake system? I'm also INCLUDING the ABS system, the master cylinder, brake booster all the brake lines etc in that question. Also if there was a lot of air in the ABS system would it cause the reservoir to empty itself? I don't see any visible leakage or fluid on the ground but yet the reservoir gradually empties over a long period of time. Any advice will be much appreciated and thank you in advance... P.s. Idk if it helps or changes anything but car in question is: >> 1997 Toyota avalon xls v6 engine type: 1mz-fe, front & rear disc brakes

Good video but even if there's no leaks it could still have air in it from overheating the brakes. It causes the fluid to release gases. I didn't hear you say that but I think this is what happened to me. Going down huge hills on dirt roads really does a number on your car 😅

@mr.sanford8588

Жыл бұрын

Any way to solve that ?

@wmd40

Жыл бұрын

@@mr.sanford8588 you have to bleed the brakes using a brake line pump. I'm not sure if that's what the tool is called, but it's not that complicated. You basically hook this thing up to the brake line stems, one at a time... They are behind each wheel usually. And then someone pumps the brakes which pushes the fluid through and therefore also pushes the bubbles out. Might have to add more fluid after the process is done on all the stems. There's lots of videos on yt. Or just go to a mechanic and ask them to bleed the brakes.

@weskirkland5850

Жыл бұрын

@@mr.sanford8588 Use your trans and downshift.

Dude, i Found the problem, to my predicament and it was to do with abs sensors on wheels not working correctly and causing air pockets in abs system, was a case of taking off sensors cleaning off rust that had acumulated behind them and putting them back on, by the way the abs warning light was not illuminating even though there was a problem with it and the light did show as on, on self test when ignition was turned on...anyway after they were put back on and system bled there were no problem with brake pedal sinking, so you video could be right for some cars but a waste of time and money for others...replace is not always the answer, as cars used to be easier to fix before all the bells and whistles were added

@47preacher48

Жыл бұрын

Interesting! I have a Toyota Sienna '06. Had the drums changed, I had changed the front discs a couple of months earlier, and when the shoes were changed everything seemed ok. However, after driving the van approximately 18-20 miles mostly through neighborhoods with lots of braking the brakes start to 'get soft' and sink to the floor with poor, almost non-existent braking. ABS light does not come on and I've had a mechanic put a scanner on it showed nothing. Also, had the master cylinder changed, twice. The mechanic said that hard braking on a wet road (with no traffic) so the ABS would go through its process may get the air out. It works for a short time and then goes back to 'soft' peddle. Not sure where the sensors are but I'm going to try that. Thanks for the suggestion. Any further suggestions are appreciated. Wonder if anyone else has seen this problem. Mechanics are stumped.

This guy is badass

Hi can I bleed the air out on the rear caliber bleeding screw?

Kind of a stupid question so I apologize ahead of time, but instead of replacing the master cylinder, isn't it possible there just air in there in the first place? And if so is there a way to simply just bleed the master cylinder itself before replacing it? Example how come doing the foot to the floor with the cap off to burp it so to speak, and put the cap back on and release the brake pedal. Is that similar? Or is that just flat-out stupid? I don't know, just flat-out asking

I had a situation recently on my 94 Explorer. Brakes worked fine until it would get really cold out and then the pedal would suddenly go to the floor. I could pump the brakes rapidly and get a partial pedal but only for a few seconds and then back to the floor. Thought at first it must be a broken brake line but couldn't find any leaks and the reservoir level wasn't dropping. Replaced the master cylinder and the problem went away. I'm guessing that the o-rings in the master cylinder were worn and when it got really cold they contracted just enough where they couldn't stop the fluid from getting by them.

@proclaimliberty2000

3 жыл бұрын

Rich MAC Yup! Internal expansion contraction leak due to changes in temperature.

@raulfernandez9111

2 жыл бұрын

These are the exact same symptoms I have in a Cadillac SRX.

@llroman7823

7 ай бұрын

Did you end up having to bleed all the wheels after doing this method? Thanks.

@richmac918

6 ай бұрын

@@llroman7823 I didn't because I was lazy, didn't feel like doing it and hoped that it wouldn't need it. I was wrong (pretty much knew I was going to be) and got uneven braking so I had to bleed them. Doesn't usually pay to do things the lazy ass way but thought I might get lucky.

Thanks scotty

Very interesting video. I have a problem with my breaks. The pedal goes down slowly. I have no licks. I changed the master cylinder, and the same thing, please, how can i solve this problem? It's a toyota hiace 2001 model.

I just had my brakes replaced n new fluid but the rear doesn’t work right as indicated by looking at the rotors. Pedal spongy to halfway or so. There’s air somewhere n can’t get it out. What’s ur fix ?

thanks so much and God bless you too bud.

@proclaimliberty2000

2 жыл бұрын

👍😊

Great video. I have just replaced the master cylinder on my Honda and bleed all the brakes. The brake pedal feels firm. However, when I turned on the engine, it became so spongy and too soft sinking to the floor. What happens ? I bled each brake by pumping it 7 or 8 times so lots of fluid came out. I did not fill the master cylinder and pumped out the air because it took me hours to connect the brake lines to it and the fluid kept coming that way after many refill of the reservoir. I suppose it just take more bleeding to push out the air in the master cylinder but it suppose to work by now after bleeding more than 1 litter of brake fluid. Like I said, the brake pedal becomes spongy and sink to the floor when engine turned on. Strange. Any help is appreciated. Many thanks.

@MrDreamcathcher

2 жыл бұрын

You might have a vacuum leak. There might be a gasket somewhere

@auginater4200

6 ай бұрын

Did you ever solve your problem?

Thank you

so just to get things clear, if your break fluid is low , this can cause your break pedal to go all the way down? is this what your saying?

The MC I just bought came with tubing and fittings to do a bench bleed.

@PsychoSainten

3 жыл бұрын

Just going to comment this

So I replaced the right caliper on my Chevy cobalt and we did everything like the first one. I did everything the way I was shown. By other videos I had seen

@robertomendoza7296

3 жыл бұрын

If you changed it on one side you MUST change it on both sides, for example: Both front or both rear

@goochfitness26

3 жыл бұрын

@@robertomendoza7296 we were changing it on both sides. We were putting the left one on and we were having issues. I eventually got it. Sold that car not to long ago

Do you bleed the master cylinder with the engine on or off ? Thanks

Good video

My garage has replaced the master cylinder twice now, didn't fix it. They also replaced the abs-pump twice with another second hand one. Didn't work either. Now they are going to replace the brake booster to see if that fixes the issue. It simply just doesn't seem realistic that 2 second hand abs-pumps have the same problem as the original one, especially since they both came with limited warranty.

Thanks

Excellent... thank you.

@proclaimliberty2000

3 жыл бұрын

👍😊

also check the proportioning valve if theres leaks

What if its not the Master Cyld its the ABS Valves? got a fix for bleeding them?

Sinking brake pedal can also happen if brake booster pushrod is not adjusted properly and can also happen if rear drum brakes aren't adjusted properly

@ghost2coast296

2 жыл бұрын

So, say SWIM was a bonehead and drove 10 miles at roughly 40 mph with his parking brake on, and wore the rear drum brake shoes down, this could cause sinking brakes? Why are the rear brakes engaging so far ahead of the front brakes?

@koreymayo8884

2 жыл бұрын

@@ghost2coast296 I just recently adjusted my brake booster pushrod to fix a low brake pedal after having a new brake booster installed by a mechanic that didnt adjust it before installing. Guess I should've installed it myself, but then I noticed my rear brakes were super loose so I adjusted them tighter which also made the emergency brake handle much tighter, but no change in the brake pedal from the rear drum brakes. I was just going by what I had read, but seems like the rear brakes maybe actually don't affect the brake pedal after all. If you have a sinking brake pedal you probably have a failing master cylinder unless your brake fluid was bled improperly and air was left in the lines.

@ghost2coast296

2 жыл бұрын

@@koreymayo8884 thanks for the insight. Guess I know what I'm doing this weekend lmao.

@koreymayo8884

2 жыл бұрын

@@ghost2coast296 lol make sure you also check the vacuum hose going to your brake booster for any leaks and check the one way check valve to make sure it's working properly.

I have a rave4 2005 with abs brake system. Can I do this same procedure?

Can i try just bleeding the master before i replace it if thats the problem?

i had a leak on the back drum brake of my silverado the fluid messed up the paint of my rim each rim is $800 im so mad why they make brake fluid so corrosive

I have 2011 Nissan Murano I change the master brake cylinder. Still the brake get hard but when start the car the brake get loose and goes back to the floor again so I did bleed all the wheels still the same what should I do ?

Good job

@proclaimliberty2000

3 жыл бұрын

👍😊

what if my pedal doesnt sink but it just isnt strong? like my brakes are nice and new but I have to use some force to get my car to a stop

"don't use remanufactured because they don't last" Says the people replacing the OEM when it goes bad

Maybe you can help me out I have an 03 Ford F150 lxt and it feels like passenger side brake is sticky replace calipers rotors and brake hoses but still get like a little pulsate feels like passenger side could it be my master cylinder pump no leaks

If it's a Ford edge, this can happen due to the ABS actuator getting stuck slamming on the brakes a few times to kick in the ABS resets it there are videos about it

I have a sinking brake pedal after replacing the rear driver side caliper, I attempted to bleed the brakes several times, but it's still doing it. The front brakes work good, but it seems the rear brakes are not working.

What if the abs has a leak? My break padel goes down sometimes while running and gets back to normal within seconds

Ok so what if I changed the master cylinder and it still doesn't tighten up the brake pedal and I have to pump a couple of times for the vehicle to stop?

How do you know if you have a bad master cylinder?

How much does this usually cost at a garage?

Sometimes break pedal not working after pumping it's working kindly advise how to check and Repair this problem

Im wondering if i remove a front and rear caliper after installing new master and squeeze down positions with channel locks, perhaps a way to do it solo,and eliminating Air that never made it too far down the lines ? Any snafoos in my Theory? Lol

@richarda996

3 жыл бұрын

Use a one way valve and hose.

You did not mention that you Must bench bleed the new master cylinder before installation.

@armoricain

3 жыл бұрын

He bled the master cylinder on the car.

what make an model is this vehicle your working on?

i dont think you can even buy rebuild kits for anything except calipers anymore. i used to rebuild my own clutch and brake masters but the kits have become obsolete from most big box store sellers and even stores like rock auto.

Short easy to understand

@proclaimliberty2000

2 жыл бұрын

👍😊

Not bad, though you missed replacing the O-ring between the booster & master cylinder!

I need help, please someone with knowledge help me out.. Here's the issue im having... I have a 2008 jeep SRT8 6.1L ..When Gently applying the brakes the pedal falls all the way to the floor causing a very poor stoppage... But, let's say if I quickly apply the brakes meaning pressing it fast and hard, the brakes work just fine and car stops right away.... I don't understand the Issue... I toke it to the braking mechanic, made them bleed out all the four sides with new fluid 2 times and the problem still accrues... Any idea?

Make sure that cap is properly fashioned… Words to live by…

You can bleed the cylinder on the bench before installing.

@proclaimliberty2000

3 жыл бұрын

That’s true! 👍😊

I am facing issue with my new car , for 1,2 seconds I feel brake paddle become free and car is not stopping , it happened 4 times. Workshop said there is nothing wrong and they are not getting this intermittent issue. So somehow they are now replacing master cylinder, is it ok ?

@DekGT5mad

3 жыл бұрын

That sounds like either the proportioning valve or secondary piston in the master cylinder has failed. The reason the brakes still sort of work after a "free run" is that when you get down far enough the pressure from the primary piston builds up enough to activate both front and rear brakes, so yes it is the master cylinder

@AjayPal-mc2hl

3 жыл бұрын

@@DekGT5mad You are correct sir , Hyundai did admit Master Cylinder failure . Sine this is life threatening as a compensation and my car was only 6 months old , they replace the car at the end.

The brake is not airy when the vehicle is at rest but super spongy when it's running. Despite that it sinks all the way down, it actually works super well and the grip sets in just right in the middle. It seems to me that this does not match with the description of this video. I wonder if it is the master cylinder issue, or something else, but what can it be? Sinking brake but grip well, what causes this?

@stef2797

Жыл бұрын

Check my posts near top of page especially if your car has ABS and your peddle is solid till you start the engine, then it slowly sinks to the floor.

i cant seem to remove master cylinder nuts that attaches it to the brake booster as they are spinning

I have a peculiar problem with my brand new F150 (2022). When I pump the pedal with engine off, it does not harden at all and I can still hear the electronic brake booster operating. I have no idea if this is normal. I have never owned a vehicle where the pedal didn't stiffen up while pumping with engine off. However, when driving the brakes work fine...

@proclaimliberty2000

Жыл бұрын

That is completely normal.

I had new brake pads put on..and when i drove it..the pedal went down..not all the way to the floor..it did stop the car. But I feel very anxious driving lilke this..what would be the problem if it does this??

@dumbeezy5480

3 жыл бұрын

maybe needs more fluid or there’s fluid in the system and needs to be bled.

I have a sinking pedal that does work if I pump it 2-3 times first. I replaced the calipers, master cylinder and booster already and bled the system countless times. What could be the cause??? I’m lost on this, 04 Xterra 4x4

@rickyy8236

4 ай бұрын

did you ever find the problem out?

@bluegill2030

4 ай бұрын

@@rickyy8236 yes it had air in the lines still. Took it to the dealership and they bled it with a scan tool apparently and it fixed it

Is it safe to turn car key half way on in order to be able to move car seat forward with this process? Thanks!

@proclaimliberty2000

7 ай бұрын

Yes

Can a bad break booster cause this too.

@stef2797

Жыл бұрын

It can but if you get someone to ram the peddle and listen for air escaping and you hear nothing check my previous posts

Awesome

@proclaimliberty2000

3 жыл бұрын

👍😊

Air in brakes will cause a sponge pedal too

What iff you replce rotors, calibers, brakes and brake booster and master cylinder, but still can not bring the break pedal up to a solid pedal? No leaks anywhere. My 1997 dodge ram 4x4 with abs has squishy pedal and can not bring the brake pedal up to a solid pedal..

@paulmcdowell6886

11 ай бұрын

I have a 1997 4×4 Ram and the pedal went to the floor today and wouldn't stop the truck, I hit the peddle a bunch of times and it came back and stopped the truck but now I have a hiss in the truck down next to the Brake pedal but its Stopping Is that a Bad Brake Booster

@craigmeyers9137

11 ай бұрын

@@paulmcdowell6886 sounds like a brake booster seal leaking. It's an easy job to replace, but it does consist of some time to remove it, and replace it. Then bleeding the brakes afterwards.

How to fix if theres a leak under the vehicle

I have a honda civic 93 swapped it with a new master cylinder and new brakes all around , swapp booster with a used one but still the same thing, I bleed the lines 3 times and also swapped the valve by the bosster but nothing?? I'm stuck

@e.r.videography6209

Жыл бұрын

Same here bro! Did you figure it out?

@drewdowncutomz4792

Жыл бұрын

@@e.r.videography6209 no I ended up selling the car to work on another project

Ive leak on breakline which is connected to master cylinder

So there's really no way to fix the brake pedal so it does not go all the way to the floor when depressing the brake pedal besides having to replace such a good brake master?

you must prime the Master Cyl

i have long travel on Camry brake pedal. Mechanic told me I need new booster. Wouldn't pedal be hard?

@DekGT5mad

3 жыл бұрын

100% correct!

@biglove1941

3 жыл бұрын

@@DekGT5mad Juat for an update..i flushed the greenish brake fluid totalky out including abs module..had tons of air..rear shoes a mile off drum..tightened em up..now perfect brakes again.

I tried rebuilding my corolla's brake master cylinder, still brake pedal sinks. I replaced the whole brake master and my brake problem was solved

Does the engine need to be running while I’m doing this

@proclaimliberty2000

3 жыл бұрын

No

@krekfouchet5572

3 жыл бұрын

Thank you

@proclaimliberty2000

3 жыл бұрын

@@krekfouchet5572 👍😊