Leaking brake lines are a serious concern on a vehicle. Loss of brake fluid reduces pressure on the brake lines and can cause a lack of stopping power when you press the brake pedal and attempt to stop. The risk of accident and injury from a vehicle unable to stop properly is serious and any brake line defects should be repaired immediately. The brake line hose is a simple part to replace and does not require a mechanic if you have the tools and basic automotive knowledge.
Lift the vehicle with the jack at the end where the repair is needed. Prop the vehicle on the jack stands to keep it stable while you work.
Loosen the lug nuts on the tires and remove the wheel on the side where the brake line is leaking.
Spray lubricant on the fittings on the old brake line. Use the regular wrench to stabilize the fitting and hold it in place while using the line wrench to loosen the nut on the fitting and remove the end of the brake line. Repeat at the other end. Remove the brake line.
Place the new brake line at the bottom fitting and tighten into place using the double-wrench method used to remove the old line. Attach the hose and tighten the fittings at the other end using the same technique.
Add brake fluid to the reservoir in the engine compartment to replace what was lost. Replace the wheel on the car. Test out the brakes to be sure the pressure has returned and the vehicle stops properly. It may be necessary to pump the brakes a few times when they are first used.
