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Q: Where Are Brake Lines Typically Located?

A: Brake lines are located along the underbody of a vehicle. They extend from the master cylinder or ABS unit to the inner fender‘s edge.

Brake lines are usually made of rubber. Some are made of rubber and other synthetic materials. You can also find metallic brake lines on some applications. They differ in length, diameter, and appearance depending on the vehicle’s braking system.

brake lines of the braking system
Brake lines are located along the underbody of a vehicle. They extend from the master cylinder or ABS unit to the inner fender’s edge.

These thin and flexible tubes transfer pressure from the master cylinder to the brake calipers or wheel cylinders. This hydraulic pressure causes the brake pads (in disc brakes) or brake shoes (in drum brakes) to come into contact with the braking rotors or drums, causing friction and slowing or stopping the vehicle.

Tips on How to Access the Brake Lines

You’ll need to jack up your vehicle before you can access the brake lines. Locate the master cylinder and remove the wheel. Don’t forget to place a drain pan under the wheel well where you’re doing the repair. This will catch leaking brake fluid.

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To remove a bad brake line, you need to loosen the nut using a wrench. You’ll also need pliers to remove the retaining clip. Once you’re done, you can now remove the brake line. Don’t forget to plug the hole so that the brake fluid won’t leak out.

After plugging the hole, you’ll need to loosen the under end of the brake line from the junction box. Brake fluid will start to drain at this point, so be careful not to get any fluid on your skin or on the paint of your vehicle. Brake fluid is highly corrosive. After this step, you can now unclip the line from the body and remove it from the vehicle.

About The Author
CarParts Research Team
Written By Research Team

Automotive and Tech Writers

The Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

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