Questions tagged [brake-fluid]

Fluid used in the brake system to transfer pedal pressure to the caliper to stop or slow a vehicle. Commonly used types of brake fluid include DOT 3, DOT 4, DOT 5, and DOT 5.1. A higher "DOT" number indicates a higher boiling point of the fluid.

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1answer
17 views

2000 Honda Civic ex brake driver brake fluid

I recently changed my pads and rotors and then started to bleed my front brakes. I noticed that the passenger side fluid comes out but not the driver side. I already took the hose out and check to see ...
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35 views

Clutch pedal hits floor

I have a Kia Soul 2011 with 140000 km on it which I bought used at 130000 km. Since I bought it I noticed that the clutch pedal touches the floor when I press it (but it comes back up) so I checked ...
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Brake master cylinder rubber seals - replaceable or not?

This is probably a completely newbie question, but it's my first car and I'm yet just learning. So my master cylinder is defective, the brake pedal sinks and even though I can live with it, it has ...
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117 views

Container holding brake fluid is bubbling

The brake fluid container of my 2010 Honda has started to bubble (clear reservoir).
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187 views

Motorcycle Brake Lever - Soft Feel & Long Pull

I have a 2008 Kawasaki ER6 / Ninja 650R race bike. Within my class I must use OEM calipers & a OEM master cylinder. These components are also not allowed to be modified. As the title says, the ...
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17 views

Degrading factors for brake fluid and suspension oil

My bike's manual suggest that I shall change the brake fluid and the suspension oil every 2 years. I am curious if it is really time dependent (i.e. do these fluids go bad with time) or use dependent (...
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35 views

Battery drain and possible brake fluid leak

This Sunday night I left my interior light on and this morning the car didn't even open with the remote key. My friends and I tried to start it by pushing it (I have done this before a few times and ...
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2answers
639 views

Does power steering fluid go bad quickly?

I've always heard that brake fluid goes bad real fast (IIRC, it absorbs the moisture in the air). What about power steering fluid? Can you buy a large container and use it over the years? Or, like ...
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77 views

Can spongy brakes lead to skidding?

I recently flushed my non-ABS motorcycle rear brake line with new fluid using a little hand vacuum pump, but accidentally initially let the brake fluid drop below the "low" marker on the master ...
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203 views

Stuck in neutral; throwout bearing still applied?

So, rebuilt a dodge neon. Started driving it and felt fine. Made it about 7 blocks and I hear a light click and then I'm coasting. Still goes into gears just fine, but it seems like the clutch is ...
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1answer
125 views

Brake fluid ran dry (ABS system)

I have a 2000 Dodge Durango with an ABS system. Earlier this week, I realized that one of my wheel cylinders had a leak, and I ran out of brake fluid (good thing it was not while driving). Anyways, I ...
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Can I put DOT 4 brake fluid into DOT 3 brake?

It's a 16 Tahoe. In my owner's manual and the brake fluid reservoir cap , they say only use DOT3 brake fluid. I'm wondering if I could use DOT4 or DOT4 Low Viscosity brake fluid?
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289 views

Do cars have a specific brake and power steering fluid or are they universal?

I am servicing my standard hyundai coupe 2006. Things like the engine oil, air filter and coolant have to be the specific ones for your car. However what about power steering and brake fluid, I can'...
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542 views

How much dirt and oil to contaminate brake-fluid?

How easy is it to contaminate brake-fluid in a car, what is the consequence, and what is the correct way to clean it? A mechanic just changed my brake-fluid. He was sloppy and did not clean the small ...
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1k views

Purpose of brake-fluid filter?

What is the purpose of the small filter-mesh inside the brake-fluid reservoir of a car? What is it supposed to keep out? A mechanic was changing the brake-fluid in my car and to get this small filter ...
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2k views

Brake fluid heat

When reading the excellent answer to the question Is failing to change brake fluid a life safety issue? I started to think about the physics of brake fluid heating up. The brake lines are fairly long ...
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207 views

Is failing to change brake fluid a life safety issue?

While I recognise the the brake system in my car is redundant, is it possible that failure to replace brake fluid could result in a fatal accident? or is there sufficient redundancy and warning ...
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12k views

When should brake fluid be changed in a Honda 2016 CRV?

I have an automatic 2016 Honda CRV. I brought my car into the dealership to be serviced (30k). The new Hondas now just show a code (A1, B1, etc.) to tell me what to service/fix. The advisor just ...
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Recommended brake fluid type for 2012 Ford Focus

My 2012 Ford Focus manual says to use DOT3 brake fluid, but the cap on the brake fluid reservoir says only use DOT4. Which one do I use?
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5k views

Honda civic 2003. Brake pedal goes all the way to the floor and the car just gradually slows down?

I have a 2003 honda civic ex with about 150K on it. I recently replaced the head gasket, of course messing with the fire wall and all the hoses, brake booster/brake lines that sort of thing so maybe ...
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1answer
370 views

Brake fluid what does it do if on ABS type plastic?

What does DOT3 brake fluid do to ABS type plastic?
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2answers
2k views

Is it sufficient to cycle out brake fluid as opposed to “replacing” or “flushing” it?

Let's assume I have a car with 30k miles whose service manual does not specify any interval for changing brake fluid, and the fluid is still transparent with no visible contaminants. Is it feasible ...
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1answer
1k views

Low Break Fluid & Spongy Brakes

Good day all, I was driving the other night (about 3 days ago) and noticed my brakes feeling different as I had to floor it to come to a stopping point. I immediately came out and checked the brake ...
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162 views

Brake fluid Differences

I need to add brake fluid to a 1929 ford pickup. I don't know if it has dot 3 or dot 5 brake fluid. Is there some kind of test I can do the will tell me what is in the pickup. How do I tell if a ...
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2k views

Did I toast my caliper?

While compressing the front brake caliper piston on my 93 miata fluid seemed to be getting out of the piston. It only did it on the driver's side. I test drove the car several times and braked hard a ...
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1answer
2k views

Is it ok to mix different clutch fluid color?

Needed to top up my clutch fluid. Is it ok to mix different clutch fluid color? One I currently have on the reservoir is blue. I will try to look for blue but what if I cannot find one. I really need ...
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299 views

What to do if you don't know if you have DOT 3 or DOT in your brake lines?

The brake fluid on my 98 Mada 626 is black and nasty looking, and I'm planning on bleeding the brakes to change it. However, I don't know what's currently in it because the Workshop Service Manual ...
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26k views

Hissing sound when depressing the brake pedal

My friend has a 2005 Peugeot 206. He brought it by for me to advise him on the brakes, and when I test drove it the brakes were soft and spongy. He then took it to a mechanic, and when he picked the ...
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760 views

What's a reasonable time for doing a one person brake bleed?

I bleed the brakes on a friends 05 Peugeot 206 yesterday, and it took me about three hours. I did it manually by myself, pumping the brakes, refilling, over and over for each tire. I did everything ...
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Brake pedal soft after changing pads

I have a 2003 Ford Focus. I decided to change the brake pads myself, as they were worn out (especially on the left side). I replaced the pads on the left side and drove a little to test them out (1&...
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2k views

How to know if the brakes are rear/front or diagonally split?

I read that in general rear wheel drive vehicles have break line circuits that are rear / front split, and that front wheel drive vehicles tend to be diagonally split ((LF,RR),(RF,LR)). How useful is ...
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702 views

Is there a reason vacuum bleeding can't be done with a syringe?

So, I was looking through the auto store while picking up a mightyvac break bleeder vacuum kit. I noticed there was a syringe meant for mixing two cycle gas with a clear hose, and I thought "why am I ...
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Hydraulic fluid reservoir caps

Hydraulic fluid needs to be kept clean of foreign debris to avoid damaging/destroying hydraulic fluid lines. It is also known to be hydrophillic; Absorbing water leads to a lower boiling point, which ...
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Changing fluids (power steering and rear differential): when and why

A few months ago I've bought a 2009 Honda CR-V and took it to the official dealer for a check. They told me that some fluids (power steering, brake and rear differential) are "dis-color" and need to ...
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1answer
2k views

Prius 2004 (generation II): brake/ABS warning lights

In a previous post I recounted how a brake issue was perturbing the hybrid battery. After having the brake job done, a few weeks later (but not much driving in terms of miles), the (red) brake light ...
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BMW 3 series 320D 2010 brake light and inspection light

Today the trip computer went over the service due milage. After a short period the red inspection light came on and what appears to be the red brake fluid light? Below is the closest picture I could ...
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2k views

How toxic is brake fluid?

Is brake fluid especially toxic or is it about the same as dirty oil (not very toxic in trace amounts or just occasional human exposure). I'm trying to figure out how much effort I should put in ...
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786 views

Are resistance/capacitance based brake fluid testers reliable?

I would like to test my brake fluid to see whether it needs replacing rather than spend the time and money on it unnecessarily. I've seen inexpensive brake fluid testers on the market which work on ...
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3answers
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2005 Montero LTD — Brake Warning Light - Intermittent

Brake light just started showing up on the dashboard. First item I will be checking is the Master Fluid Level . . . the manual says DOT3 or DOT4 brake fluid . . . How do I determine which one is ...
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4answers
509 views

Brakes don't work

I have a 98 Chevy Blazer 4.3 liter I was driving down the road coming home when I went to apply the brakes the pedal went to the floor but I did not slow down nor stop I had to use a hill in order to ...
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507 views

Motorcycle front brake lever too close to grip

The front brake lever on my 1998 Honda VFR is coming back way too close to the grip. This is since it came out of winter storage in April. It's an adjustable lever and I've changed it from 3 or so to ...
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1k views

Does brake fluid require topping-up as brake pads wear out?

The other day I was watching a video of a guy changing brake pads, and the first thing he suggested was opening the brake fluid container to remove some fluid with a syringe. This is to avoid ...
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Cleaning brake fluid (general tips)

There are some other threads on other websites about cleaning up brake fluid. But I just wanted to get a more organized, concise answer here on SE. Wanted to confirm that cleaning up brake fluid just ...
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303 views

Specifics about changing a brake caliper on 2000 Toyota Camry

I went to change the brake fluid in my 2000 Toyota Camry and when I tried to unscrew the bleeder nipple on a front caliper it broke in half rather than unscrewed. So, I need to replace the caliper ...
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1k views

Brake fade and spongy brakes at high speeds

I was driving my girlfriends Ford Fiesta last week and it started to experience brake fade. It always happened after driving the car at higher speeds over 100kmh (60 MPH). The brake pedal became ...
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2answers
3k views

Clutch sticking, wait until engine's warm

I drive a 96 Honda Del sol it's got about 200k on the engine. So lately my clutch hasn't been going into first or neutral when I try to start it. There is often very little resistance in the clutch at ...
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1answer
2k views

Brake fluid doesn't move in the master cylinder container

I have done a clutch bleed on my Toyota Corolla e120 2006 because I had some difficulties shifting out of 1st gear, I bled it through the slave cylinder and I noticed the fluid was dark black, I was ...
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542 views

How can I dispose of the waste products I get from working on my car more effectively?

I have some real challenges disposing of various fluids and consumable objects from working on vehicles at home in my small workshop. Some of the more common things that I want to be able to dispose ...
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1answer
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What actually happens when there is no brake fluid in the brake fluid reservoir?

I was curious, given that fact that a lack of engine oil can completely destroy your engine, can a lack of brake fluid completely destroy your brakes? I can imagine how that could be even worst than a ...
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What are all the different types of fluid in a car and a short summary of their use?

A fluid is defined as anything that flows, hence for our purposes a gas or a liquid. I know that there is fuel, engine oil, engine coolant and brake fluid. Also air is normally taken in through a ...