I have a 2010 Crown Vic' that is eating brake fluid for no apparent reason. Over the weekend I pulled all the wheels, checked all lines, flex hoses, block, calipers, pad thickness, and the master cylinder for visible leaks. I couldn't find any. The first thing that occurred to me was the possibility of an internal leak in the master cylinder. I do my own brake work to save money from time to time but I'm no mechanic. So, I asked an actual mechanic about my problem and he told me that "there must be a leak that you can't see (external)..." I can't find it if there is one, and I looked extensively. Now, you confirmed my original suspicion as a possibility. Thank you.
Damn you just made me connect the dots. I started noticing a slight white smoke coming out the tail pipe this year almost around the same time my brake fluid started getting lower and lower. Man here we go another bill and another headache
So i have a Malibu 2014 ltz, i started digging around and investiging and i noticed my rear passenger side tire on the inside is wet and slick. Turns out it’s brake fluid!…any idea of where the brake fluid can be leaking from? Im gathering the tools needed to take the tire off and investigate. So far i seen it could be the brake caliper and just to replace the whole thing or brake cylinder but i don’t think my car has that.
Great video, brother! Some excellent advice. Been topping off my 95 Corolla for awhile now. Brake warning light comes on, master cylinder must be low on fluid. But no loss in braking pressure, and no leaks ANYWHERE. So, I figured the master cylinder must be leaking internally into the booster. Also checked inside the car for fluid leaking under the front carpet, and mat. Nothing there. What I DID learn from you in this video is where all that fluid is going. Into the engine... No WONDER it won't pass the emissions sniffer test! 😂 And I figured all the exhaust "blow by" I've been seeing in my rear view at night in the headlights of the cars behind me, was just due to the fact that the rings/valve guide seals were probably going due to high mileage. The car DOES seem to have plenty of power though despite this. Probably due to the increased compression caused by the fluid. 😂 Guess it's time to throw a new master cylinder on there. Thanks again. 👍
Finally, someone that gives a straight-forward info video. Thank you so much! This is a huge help. Is it possible to change just the reservoir? I can tell it is leaking at the grommets. I would replace just those first but the reservoir is dirty, old and yellowing.
Just cleaned garage floor and park the car in there to leave & look for signs of leak. Ford Focus is soo low you can't really get under to look around without a lot of jacking & blocking up the car. Same problem after recently new master cyl and full bleed was perfect for a while. All this fluid is going somewhere.
Hello my friend from Greece.I am watcing at list 10 monthes.Sorry for my english.You help me a lot.Very usefull informations.If it is easy for you I would like you to put Greek subtitles to your videos.Thank you again.
Very interesting and helpful information. When the master cylinder rear seal fails you can replace the seal only or you have to replace the master cyllinder? Thanks
My mechanic said, that break fluid ends up in the exhaust, causing white smoke on gasoline engine Honda CRV 1999... I guess it must be the same thing... I didn't think there was any fluid carrying connection between engine and master break cylinder.. puzzle...
Hello Sir, i got 2006 lexus gs 300 awd that is only have 130k miles, i have to keeps add brake fluid every two weeks and i has looks for the leaks every where din't find the leak no where. Can you Please give me an idea where could be, Thanks!
I can find NO leaks and my wife was driving my 01 chevy s10, she heard a noise and break pedal went to floor, itl break enough if the pedal is smashed to the floor, literally. She got home and resevoir was EMPTY. What do you think it is?
I got a 2013 Hyundai sonata, and I am seeing spots (unfortunately they've gotten larger now) on the pavement when I leave my driveway.... There doest seem to be anything leaking riggt from where u put the fluid in, as well as in the hoses that are immediately visible when u look at the brake fluid receptacle/"container" So I think it's a little deeper inside the engine area when u pop the hood... I'm currently out of work and spent my life savings paying for cancer treatment after some unfortunate (yet stereotypical) issues with the grand ol' US Healthcare system.... so right now I can't even afford like a mechanic taking a look and/or doing a diagnostic... So any advice on where exactly to put my focus when looking for the source? I hope it's "just" a hose, cuz I can eventually buy replacement(s) and change it out myself.... (of course with my luck it's probably the caliper and somehow subsequently affects the pistons and transmission and rear Axl by some act of Bizarro-Land interference lol)
My break fluid is low all the time. I check it everywhere but not found it. I always bring one brake fluid with my car. When it's low i add all the time. Who knows the problem. Please help me. Thanks!
If you have a car after 2011 in the US it has ABS so a Stop Leak would ruin every ABS pump it touches due to the narrow galleys. That's why they don't exist to my knowledge.
I got a 2008 Highlander brake fluid leak nothing on ground checked all calipers and lines the dealer couldn't even find the leak the vacuum hose is dry but iam still thinking master cylinder
If you have a leak, but keep on driving as long as brake fluid remains in the compartment (due to refills), do you still risk doing serious damage to the braking system?
Not typically, no. However if it's seaping out of a wheel cylinder, or you have a pin hole leak in one of your steel lines due to rust, or in one of the rubber caliper hoses, the system COULD suddenly fail. Which would result in a total loss of braking at speed, on the road. Which is very likely if you have a rusted steel line. That micro pin hole leak could suddenly "pop", blowing out a larger chunk of the rusted steel.
@@MF-le7fp What I don't understand is that the mechanic I went to said it was due to the brake pads. He changed my brakes bc he said I was down to 20%-30%. He put new brakes and it's been fine. But why would all the brake fluid have been gone just bc the brakes were down to close t 20%? I have changed brakes may times before on other cars and never had this issue.
@@Jose-sy1je That is typically normal. Brake lining wear, along with drum and rotor facing wear will cause this to happen. As the wear occurs, the fluid level will drop. Sometimes greatly.
@@MF-le7fp So all the brake fluid will go into the empty spaces where the wear occured? Does that mean the brake fluid stayed in the system? Bc my car gave me a warning that the brake fluid was super low and I saw nothing in the container and had to fill it up.
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I have a 2010 Crown Vic' that is eating brake fluid for no apparent reason. Over the weekend I pulled all the wheels, checked all lines, flex hoses, block, calipers, pad thickness, and the master cylinder for visible leaks. I couldn't find any. The first thing that occurred to me was the possibility of an internal leak in the master cylinder. I do my own brake work to save money from time to time but I'm no mechanic. So, I asked an actual mechanic about my problem and he told me that "there must be a leak that you can't see (external)..." I can't find it if there is one, and I looked extensively. Now, you confirmed my original suspicion as a possibility. Thank you.
Damn you just made me connect the dots. I started noticing a slight white smoke coming out the tail pipe this year almost around the same time my brake fluid started getting lower and lower. Man here we go another bill and another headache
So i have a Malibu 2014 ltz, i started digging around and investiging and i noticed my rear passenger side tire on the inside is wet and slick. Turns out it’s brake fluid!…any idea of where the brake fluid can be leaking from? Im gathering the tools needed to take the tire off and investigate. So far i seen it could be the brake caliper and just to replace the whole thing or brake cylinder but i don’t think my car has that.
Best breakdown I’ve seen yet .. especially the part with “no leaks” vacuum.. I think that’s my culprit
Great video, brother! Some excellent advice. Been topping off my 95 Corolla for awhile now. Brake warning light comes on, master cylinder must be low on fluid. But no loss in braking pressure, and no leaks ANYWHERE.
So, I figured the master cylinder must be leaking internally into the booster. Also checked inside the car for fluid leaking under the front carpet, and mat. Nothing there.
What I DID learn from you in this video is where all that fluid is going. Into the engine... No WONDER it won't pass the emissions sniffer test! 😂 And I figured all the exhaust "blow by" I've been seeing in my rear view at night in the headlights of the cars behind me, was just due to the fact that the rings/valve guide seals were probably going due to high mileage. The car DOES seem to have plenty of power though despite this. Probably due to the increased compression caused by the fluid. 😂
Guess it's time to throw a new master cylinder on there. Thanks again. 👍
Finally, someone that gives a straight-forward info video. Thank you so much! This is a huge help.
Is it possible to change just the reservoir? I can tell it is leaking at the grommets. I would replace just those first but the reservoir is dirty, old and yellowing.
EXCELLENT VIDEO!! Thank you so much
Just cleaned garage floor and park the car in there to leave & look for signs of leak. Ford Focus is soo low you can't really get under to look around without a lot of jacking & blocking up the car. Same problem after recently new master cyl and full bleed was perfect for a while. All this fluid is going somewhere.
Hello my friend from Greece.I am watcing at list 10 monthes.Sorry for my english.You help me a lot.Very usefull informations.If it is easy for you I would like you to put Greek subtitles to your videos.Thank you again.
Yiasou
Very interesting and helpful information. When the master cylinder rear seal fails you can replace the seal only or you have to replace the master cyllinder? Thanks
There are rebuild kits available which will include seals.
My mechanic said, that break fluid ends up in the exhaust, causing white smoke on gasoline engine Honda CRV 1999... I guess it must be the same thing...
I didn't think there was any fluid carrying connection between engine and master break cylinder.. puzzle...
I don't see a leak it's just draining the caliper gets hard but after driving it for a few hours the master cylinder is empty
Hello Sir, i got 2006 lexus gs 300 awd that is only have 130k miles, i have to keeps add brake fluid every two weeks and i has looks for the leaks every where din't find the leak no where. Can you Please give me an idea where could be, Thanks!
yes its very useful and helpful
I can find NO leaks and my wife was driving my 01 chevy s10, she heard a noise and break pedal went to floor, itl break enough if the pedal is smashed to the floor, literally. She got home and resevoir was EMPTY. What do you think it is?
Same problem here
I got a 2013 Hyundai sonata, and I am seeing spots (unfortunately they've gotten larger now) on the pavement when I leave my driveway....
There doest seem to be anything leaking riggt from where u put the fluid in, as well as in the hoses that are immediately visible when u look at the brake fluid receptacle/"container"
So I think it's a little deeper inside the engine area when u pop the hood...
I'm currently out of work and spent my life savings paying for cancer treatment after some unfortunate (yet stereotypical) issues with the grand ol' US Healthcare system.... so right now I can't even afford like a mechanic taking a look and/or doing a diagnostic...
So any advice on where exactly to put my focus when looking for the source?
I hope it's "just" a hose, cuz I can eventually buy replacement(s) and change it out myself.... (of course with my luck it's probably the caliper and somehow subsequently affects the pistons and transmission and rear Axl by some act of Bizarro-Land interference lol)
Could this make the engine go out if it's leaking pass the booster through the intake and into the engine combustion?
Thank you, this could ruin engine when no leaks are found underneath car and at the booster? Correct?
My break fluid is low all the time. I check it everywhere but not found it. I always bring one brake fluid with my car. When it's low i add all the time. Who knows the problem. Please help me. Thanks!
Could be a lot of things. Leaky brake caliper, leaks at the line, leaks at the wheel cylinder, leaky rear master cylinder seal etc...
Have a leak in my brake line was wondering is there like a stop leak I can pour in there ???
If you have a car after 2011 in the US it has ABS so a Stop Leak would ruin every ABS pump it touches due to the narrow galleys. That's why they don't exist to my knowledge.
I got a 2008 Highlander brake fluid leak nothing on ground checked all calipers and lines the dealer couldn't even find the leak the vacuum hose is dry but iam still thinking master cylinder
I'm here because I'm having the same issue with my 08 Highlander. Was it the master cylinder?
@@angeldew77 yes mine was the master cylinder leaking into the booster easy fix u won't see brake fluid it's all inside the booster
@@billwheeler5782 thank you so much I appreciate you
If you have a leak, but keep on driving as long as brake fluid remains in the compartment (due to refills), do you still risk doing serious damage to the braking system?
I been doing that for 2-3 months tbh
Not typically, no. However if it's seaping out of a wheel cylinder, or you have a pin hole leak in one of your steel lines due to rust, or in one of the rubber caliper hoses, the system COULD suddenly fail. Which would result in a total loss of braking at speed, on the road.
Which is very likely if you have a rusted steel line. That micro pin hole leak could suddenly "pop", blowing out a larger chunk of the rusted steel.
@@MF-le7fp What I don't understand is that the mechanic I went to said it was due to the brake pads. He changed my brakes bc he said I was down to 20%-30%. He put new brakes and it's been fine. But why would all the brake fluid have been gone just bc the brakes were down to close t 20%? I have changed brakes may times before on other cars and never had this issue.
@@Jose-sy1je That is typically normal. Brake lining wear, along with drum and rotor facing wear will cause this to happen. As the wear occurs, the fluid level will drop. Sometimes greatly.
@@MF-le7fp So all the brake fluid will go into the empty spaces where the wear occured? Does that mean the brake fluid stayed in the system? Bc my car gave me a warning that the brake fluid was super low and I saw nothing in the container and had to fill it up.
How do you get the break fluid out of the engine once its in there???
by sucking on the tailpipe while it's running
Drive it
😂@@DigitalDissident
👍
Hey let me get a bag of weed
😂😂😂😂
He’s out that’s why no reply
Just replaced my resovior, the leak has reduced but there is tiny drops not sure it's the