In order for your car’s braking fluid to make its way to your calipers, it must be pumped. That’s the job of your brake master cylinder (BMC). In this article, I’ll briefly describe how this critical component works and explain how you can identify warning signs that it’s failing. Then, I’ll shed some light on whether you should replace it yourself or have a trained mechanic do it for you.

A Brief Overview Of The System

As mentioned, brake fluid needs to be pumped to your vehicle’s front calipers. The fluid begins in the master cylinder, which is located near your braking pedal. When you press the pedal, hydraulic pressure is created within the BMC; that pressure pushes the fluid through the lines. Eventually, it reaches the calipers, which allows the pads to apply pressure against the rotors.

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