Diagnosing & Replacing Master Cylinder

[@Jay_Dahl]

If you're expecting KZbin to automatically point me to the second part of this video, it didn't happen. For the sake of your viewers, It would be best to put all your content in the same video.

[@thedavesofourlives1]

Yea, WTF

[@csl9495]

This is exactly what im experiencing. I dont think my lines are leaking although i guess i should check before i began. I am excited to do this replacement.

[@robertmoreno14]

Would of been cool if you made a follow up video on what was the reason for the master cylinder failure.

[@blackericdenice]

They lied. Nothing was wrong with the master cylinder. They just wanted to make video.

[@TheHortond]

They usually fail from an internal leak. Your pedal sinks to the floor and you pump it to bring it back up. MC is the only thing I found it to be.

[@jacobsamson257]

Too much spaghetti sauce

[@pamparker4047]

This is a GREAT series

[@annhenry1226]

so basically diagnoses = no leaks outside - pedal to the floor.

[@martindanburen1994]

yep. and we had to endure six and a half minutes of nonsense jabber to get there. Still never talked about how to diagnose it beyond that or the check valve, etc. my suggestion, try another video.

[@ChristopherWoods]

Could you link to the next video in this episode, either on the end of the video as an overlay or in the description?

[@Whatiffitness]

Exceptional video with very good editing

[@kenyamyhomee]

When i stop for a while, my pedal does not necessarily go to the floor but slightly moves inwards then immediately feels hard and vehicle starts moving by itself. What could it be?

[@samuelsmith9955]

How would you test the electronic check valve with three wires on the booster.

[@ubethejudge69]

Is the non pressurized test ( no engine running) with plugs really a 100% test? It worked in this scenario but for those that fail only under pressure(car running), it could be misleading? thoughts?

[@AlwaysHopeful87]

Is this correct? To test the Master Cylinder, plug the two holes with brass fittings and apply pressure. If the pedal goes to the floor then the M/C is bad.

[@chapin2513]

That’s what I’m getting too. That would make sense bc if it still goes down then I’m assuming the springs inside is bad

[@TheWittyGeek]

@@chapin2513 Seals. Seals would be bad. It'd be letting fluid slowly leak past.

[@LastBastian]

how do I *identify* what master cylinder I need? The one in my 23 T bucket is worn out... but I don't know how to match up a new one, since I didn't build the thing.

[@MrSheaonemillion]

why didnt you suspect a vacuumn or leak from the booster?

[@kshipon1798]

Can I isolate the master cylinder by taking out the ABS Fuse?

[@basvandervegt7338]

How do you check the abs on failure? My mastercylinder is just feeding the abs unit but abs does not pump it to my right caliper. My first gut feeling was the mastercylinder because also i saw a rusted bolt where the brakeline enters the last last part of the cylinder the second piston i mean. From there it gos to the abs unit, i opened the rusted bolt/brakeline to see what would happen, only when i took out the bolt completely, the brakefluid started to come out. when i opened the non rusted bolt it just took a few notches with the wrench and it started to flow with much more pressure so i imediatly closed it again. Now ive never done this before and i know i need to bleed the whole brake system now. But isnt there suppose to be more pressure on the end part of the mastercylinder? I was hoping the tell without taking out the mastercylinder but because i am starter my knowladge on cars isnt that high yet.

[@kshipon1798]

Thanks for amazing video. My 07 Lexus RX 350 break padel sink, (not all the time and not everyday) master cylinder has been charged twice after a month problem came back, has been bleeded couple of time, everything else is good, no leak anywhere why do you think it’s happening? Thanks

[@boobayloo]

so much talking, little action

[@tkrdg7885]

Foreplay is too long 🥱

[@familyman831]

The American way unfortunately

[@Kwilson3828]

Well you said the brake pedal was dropping to the floor when the car was running but when you isolated the master cylinder to test it the car was off. Not too clear on that

[@that_neon_channel2438]

Digging the full brake system from a 2nd Gen dodge neon 😂

[@angelf9800]

Question I am not getting any fluid going to my rear breaks only to my front breaks can it be the Master center going bad

[@TheHortond]

I forgot about this show. Where did you go?

[@roddydykes7053]

Does Jack White know you ripped off 95% of his riff for your intro? 😂

[@MrJman26211]

Is this something that can happen randomly at the beginning stages of failure?

[@safffff1000]

Duhhh, no mention of the ABS system and if that can cause the pedal sponge.

[@coreygoodwin2174]

Got a ? How do i tell if i got a bad break booster or master cylinder i have no leaks and wen car is off i have a hard pedal i start car and breaks go to floor

[@M.A.S.-SuperiorService-]

Where is the diagnosing?

[@jasonhuofficial]

Next Video: kzbin.info/www/bejne/fpupmGdnds97f7c

[@loharmony1]

I have 2001 infiniti i30t and I am in the process of changing the master cylinder. Can you give me any sugguestions? all 4 wheels are locking up and the mechanic I took it too said it needs to be replaced. Thank you.

[@driceproductions5304]

Am I the only one who thinks the intro music sounds like a copyright free version of White Orchid by The White Stripes?

[@dnice4023]

Hello I have a crown Vic 2001. When I drove down a hill. I. Pushed the brake it seems like the pedal went close to the floor. And sometimes when backing on a dip. Parking spot. When I hit brake it seem like kept moving can somebody help me out

[@vimangasubasinhe5080]

Tnks for nice vedio. In my vehicle when i apply break hard in a slope around 30 seconds(100m) suddenly i lost break completely in two occasions. But after that break works properly. Can you kindly assist me to diagnose this matter please.

[@AdrianJMizzi]

Changed Master cylinder but still the pedal is going down again. Back to square 1. What else c ould the prob be.. Many thanks for the videos.

[@mnjk80]

Next in line would be the abs module! If your car has one, I would check there

[@blackericdenice]

I don’t ever bench bleed. Normal bleeding will take care of that.

[@andyeverett1957]

I might have a strange case, 2007 Lexus es350, pedal feels firm with engine off and as soon as the engine is started the pedal goes to the floor keeping foot pressure relatively constant. Brakes bleed several times. Ideas? Thanks.

[@michaeltownley1378]

Hello, I am curious to see if you every fixed this issue. I am having the same issue with a 2001 Chevy Blazer LS no leaks and I'm pretty sure its the master cylinder.

[@andyeverett1957]

@@michaeltownley1378 I am not sure what I did but it seems to be working OK, the pedal still goes down pretty far but the car stops good and I am just living with it now. Good luck.

[@israelallen6430]

Cool intro

[@georgebonney90]

👍

[@patrickhooker5697]

To complicated to test . Has to be easier way to test ?

[@KL4life]

Don't you have to bleed the brakes first to ensure no air is in there before assuming the master rcylinder is bad?

[@chapin2513]

That’s what I’m thinking too

[@tkrdg7885]

Foreplay is way too long 🥱

[@zackaryrients1863]

That's a wheel cylinder not a master cylinder?

[@andreyche193]

Half the distance, twice he force. Pressure stays the same. So the "explanation" sucks.

[@felixcollazomustang6687]

The best video explanación

[@jarodfisher9004]

Here's the link to the second part, for those of you unable to do a simple search. You're welcome! kzbin.info/www/bejne/fpupmGdnds97f7c

[@thedavesofourlives1]

Fuck you and thanks.

[@MrMrsregor]

5:24 for diagnostic part

[@bankos6855]

Hi Bryan and John. You have great videos. But regarding breaking. I have a Chevrolet Trax 2014 FWD 1.7 TD. And for 1,5 years nobody has diagnosed My issue right. There is no computer signal or error code that shows up. But My front right and rear back brakes are randomly staying pushed against the rotors whenever the brakes are used. Even it is just once. The weird thing is, it's not all the time like that. It comes and goes randomly. Everything from the hoses, to the brake lines to the saddle and supports, rotors and disks are changed out. The main vacuum pump has been checked and is OK. The ABS fuse has been tested. Meaning it has been taken out to see if it's an ABS or EBCM issue. But the issue still was there. So we put back the ABS fuse. And no one got wiser :( The vacuum membrane has not been looked at and it seems that no one here in Estonia is qualified to do that either. Not even the Chevrolet dealers mechanics at Autospirit nor Opel dealers mechanics have identified the issue correctly. They just keep changing out parts but not diagnosing the underlying issue at all. Do you have come across an issue like that? Any advice?

[@michaeltownley1378]

Just some suggestion I'd look into I'd recommend changing your brake calipers first off cause sounds like the pistons are sticking a little and if its not that I'd try changing the whole ABS unit out.

[@MattJonesYT]

Part 2 is kzbin.info/www/bejne/fpupmGdnds97f7c

[@jeremye5714]

Jesus Christ somebody make an automotive yt channel that just does the work without all the pathetic pandering and cultist yt ritual begging for views.

[@johnbinzhou]

Just get to the point. Who wants to sit around for 2 minutes of intro.

[@darrinrentruc6614]

get to the point already guys

[@ehart34]

Less bullshit talking and get to the damn point!

[@robinw2613]

This video sucked - skipped over how to isolate the cylinder