How to Fix Brake Lines

Over time, your vehicle's brake lines may become damaged or corroded. When this happens you should repair the lines by replacing them with more reliable steel brake lines. Once you've determined your brake lines need to be replaced you can do the job in your garage, saving you a bundle over having them replaced at an auto shop. However, it's important that you replace them as soon as possible as driving with leaking brake lines poses a major safety hazard.

Instructions

1

Jack up your vehicle using a floor jack and place a support stand under each wheel. Consult your owner's manual to determine a safe jacking position. While it's not necessary to do so, removing each wheel will make it easier to reach the damaged brake line.

2

Siphon out as much brake fluid from the master cylinder using a turkey baster. Loosen and remove the union nuts connecting the brake line to the hose. Then remove the retaining clip to pull the brake line from the hose.

3

Opt for steel lines, rather than copper, when replacing your fuel lines. Bend the brake line carefully then replace the retaining clip and reconnect the brake line to the house. Make sure the replacement lines are the same length as your old lines.

4

Top off the master cylinder with brake fluid before bleeding the brake system by removing the cap on the bleeder valve's caliper. Fit a length of clear plastic tubing over the valve, placing the other end into a clear container. Instruct your partner to pump the brake pedal as you turn the bleeder screw to bleed the brake system. Do this until you don't see any air bubbles in the fluid pouring into the container.

5

Refill the master cylinder after replacing and bleeding the other brake lines. Lower your vehicle from the support stands.