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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what is the difference between DOT3 and DOT4 brake fluids?

What is the difference between DOT3 and DOT4 brake fluids? What could possibly go wrong if I use a (4 times cheaper) DOT3 brake fluid instead of the DOT4 which manufacturer recommends (but allows ...
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votes
3answers
4k views

My brake fluid all left on short notice. What gives?

During the very cold weather (here in Ohio) recently, I noticed the brakes on my 2000 Chevy Malibu were a little soft, and made a mental note to attend to them promptly. Then, over the course of 24 ...
4
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2answers
243 views

Mixing brands of DOT4 brake fluid

I have changed my DOT3 brake fluid to DOT4 brake fluid. Will it hurt to mix DOT4 fluid with another brand of DOT4 fluid?
3
votes
1answer
31 views

Brake fluid gone, rear brakes out. '99 pathfinder

The other day I started my car and the e-brake light stayed on after releasing it and I figured it was electrical at first. When I started using the brakes I realized I had to push about twice as far ...
3
votes
1answer
113 views

Is it necessary to bleed brakes if the system is never opened?

Just wondering if there is a point to bleeding the brakes if the system is never opened, since it's effectively a closed system. For example, does the chemical change should the fluid reach boiling ...
2
votes
2answers
974 views

Mixing DOT 4 with DOT 4 synthetic

I couldn't see an existing question about this but please link to it if you know of one ... I should point out I'm English and the products described are bought in the UK, in case it makes a ...
2
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2answers
6k views

Using DOT4+ in clutch/brakes when DOT3 is recommended?

Looking at Wikipedia's DOT 3 page, it looks like it's been effectively superseded by DOT 4 fluid, but it's still sold and is still recommended on many forums. This question has an answer saying DOT 4 ...
2
votes
1answer
153 views

Could my brake problems be caused by a wrong kind of brake fluid?

The brake light is on in my 2007 Toyota Tacoma 4WD v6. The recurring pattern has been that I would fill up the brake fluid but then it would drop below the minimum mark after just a few days. It ...
2
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1answer
87 views

How to bleed Toyota Tacoma clutch system?

Vehicle: 2007 Toyota Tacoma 4WD v6 6 speed I found this tutorial on pre-bleeding but it is generic (not vehicle specific) and I think there are differences between the cylinder it uses and Tacoma's, ...
2
votes
1answer
58 views

How to avoid having air bubbles in clutch line after cylinder replacement?

I am in the process of replacing the clutch master cylinder on my 2007 v6 Tacoma. When I detached the old one, I tried to minimize the leakage of the brake fluid. Once I put the new part in and add ...
2
votes
1answer
35 views

Is vehicle's fluid level monitoring the best way to detect all leaks?

I did an oil change for my friend's car and the mechanic was trying to convince me that it is leaking oil and brake fluid. He suggested that the car needs a costly repair (~$1400). While I don't have ...
2
votes
1answer
331 views

Ford Escort - Brake Fluid leak in car

I own a Ford Escort 1992, 1.9l, manual. Recently my default-idle had been really high and so I did some research and figured out that my brake booster probably broke. So I went to the junkyard and got ...
2
votes
1answer
63 views

Brake pedal is hard to push even after new brakes

The brake pedal in my 06 Pontiac g6 seems harder to push than normal. Since the issue started, I've had the rear rotors and pads replaced, along with a control arm. For the first 10-15 minutes of city ...
2
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1answer
895 views

Brake fluid reservoir level drops fast to minimum but not below

The brake fluid reservoir level drops very fast in my 2007 4WD V6 Toyota Tacoma, probably within 3-5 days of filling it up. The funny thing is, it drops to just below where it says minimum but not ...
1
vote
1answer
35 views

How to clean brake fluid spillage from vehicle floor?

I had a leak out of my clutch master cylinder for quite a long time (until I figured what it was causing it). The floor mat is pretty soaked in brake fluid (and I am replacing it) but there are also ...
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vote
2answers
37 views

Is it necessary to purge the entire brake circuit if only the front wheels flexible are changed?

The vehicle does not have ABS. It is the typical X configuration.
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2answers
2k views

Vaxhall Astra H clutch problem

A couple of months ago I noticed some problems starting with the clutch; the pedal became extremely spongy and the biting point was right down at the bottom, expecially on cold starts first thing in ...
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vote
1answer
1k views

Skoda Fabia, flashes handbrake light and beeps 3 times

When I turn heavy or accelerate hard in my Skoda Fabia the handbrake light flashes approximately 5 times and beeps exactly 3 times.