To replace a brake line, remove the wheel, and loosen the connection between the rubber part of the line and its metal fitting with two open-end wrenches. Attach and tighten the new line the same way. Fill the reservoir with brake fluid, and bleed the system afterward.Continue Reading
Loosen each lug nut on the wheel associated with the brake line you want to change.
Lift one end of the car with a jack, and support the car on a jack stand. Repeat with the remaining three corners of the car.
Remove each lug nut completely, and remove the wheel.
Locate the spot where the rubber hose of the brake line connects to a metal fitting. Place a wrench on either side of the fitting, and loosen it.
Place a rag underneath the line, and remove it.
Attach the new line to the fitting, and tighten it by hand. Tighten the fitting all the way with two wrenches.
To ensure the proper performance of your brake system, replace the other brake line as well.