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A brake bleeder kit typically uses a hand-held pump to draw air and brake fluid out of the brake system. As the old fluid is drained, new fluid is pulled into the brake system as part of the same process.
Bleeding brakes is a fairly simple process. This helpful guide shows you how. The most important things to keep in mind are:
If you have questions about bleeding brakes, or the parts you need, our friendly staff can help.
The bleeder valve is usually located on the top of each brake caliper. It looks like a hex nut with a nipple and should be located close to the brake line. The brake bleeder fluid hose should fit snugly over the bleeder valve, preventing brake fluid from leaking. You will also want to use penetrating oil and the correct size box wrench or socket to open the bleeder valve. Often the valve may be difficult due to corrosion. It's important not to break the valve or round the edges.
This helpful guide shows you how to bleed brakes. Or, if you have questions, our friendly staff can help.
If the brake bleeder won't open, it was probably over-tightened or rusted shut. The last thing you want to do is try and force it open. That might damage or break the bleeder valve.
The best thing to do is soak the bleeder valve in penetrating oil, and patiently wait for it to work. It may pay to do this a couple days before you want to bleed the brakes. You can also try cleaning it. If the valve won't turn, lightly tap on the screw with a hammer or wrench. This may help break the threads loose from the rust. Then try rocking the valve back and forth gently until it loosens up. If it breaks, you will need to use an Ez-Out or screw extractor to remove the broken valve.
If the brake bleeder was hard to open, or if it looks rusty, or if the hex corners have rounded off, you should replace it. We offer high quality brake bleeder screws and bleeder screw caps. These parts are made from high quality materials for long term durability and require no modifications.
A self brake bleeder is a type of bleeder that can be operated by one person. It does not require a second person to pump the brake pedal to push fluid through the brake system. The most common type of self brake bleeder is a vacuum bleeder, but pneumatic pressure bleeders have also become popular recently.
A master cylinder bleeder is a type of bleeder used to get air out of the master cylinder. Its typically used to bench bleed a master cylinder before it is installed.
Vacuum bleeders and PT bleeders offer different ways to extract brake fluid from the brake system. A vacuum bleeder pulls fluid out of the brake system by applying suction. A PT or power/pneumatic bleeder pushes fluid through the brake system by pressurizing it at the master cylinder.
See our guide on how to bleed brakes for step by step instructions on bleeding brakes. Or contact our friendly staff if you have questions or need help.