Chemical flush: a cleaning operation in which a chemical such as denatured alcohol is used to flush the brakes and restore the condition of brake fluid.There are two types of brake fluid flushes, regardless of whether the braking system uses drum or disc brakes: In a drum brake system, pressurized brake fluid forces a set of brake shoes against drums to stop the wheels. These hydraulic pistons squeeze brake pads against the wheel rotor to create friction and stop the vehicle. When the vehicle uses a disc brake system, that fluid travels to the brake caliper pistons. When you press down on the brake pedal, brake fluid goes from the master cylinder into the brake lines, activating the brake pistons to apply pressure from the pads to the rotor.
Regular flushing can prevent this deterioration.Ĭertain signs indicating a need for a brake fluid flush include a soft, spongy brake pedal, the ABS dashboard light coming on, ineffective braking performance, strange sounds or odors while braking, and as part of routine maintenance.Ī brake fluid flush replaces your old brake fluid with a new one and should be done every 30,000 miles or every 2 years to keep your brakes effective. While possible to do at home, trained professionals best perform it.īrake fluid is essential because it's hygroscopic and absorbs moisture over time, which can lower its boiling point and degrade braking performance.
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It should be done every 30,000 miles or every two years.Ī brake fluid flush is intricate and involves a series of steps, including draining old fluid, replacing it with fresh fluid, and testing the vehicle post-procedure. A brake fluid flush involves replacing old brake fluid with new fluid, crucial for maintaining effective braking and overall vehicle safety.
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