How do you inspect a brake line?

To check your brake lines, do the following: Check carefully along the brake lines. Wetness and streaks of dried fluid are signs of trouble. If you see rust spots on your lines, gently sand them off. Feel the rubber parts of the brake lines. Look at the inner surfaces of your tires. Click to see full answer. Thereof, when should you have your vehicle’s brake lines checked?Most car mechanics and makers say you should replace your car’s drum brake lining when it has worn down to about 1/8 inches or less. You can tell when this happens by measuring the lining with a tape measure. You should plan on having to replace them about every 12,000 miles, or a year of use, whichever comes first. how much does it cost to replace a brake line? Know what price you should pay to get your vehicle fixed. The average cost for a brake line replacement is between $171 and $207. Labor costs are estimated between $76 and $97 while parts are priced between $95 and $110. Estimate does not include taxes and fees. Beside this, how do you know if you have air in your brake lines? “Air In Brake Line Symptoms They in turn press the pads into the brake rotors to slow or stop the vehicle. Air is much less dense when compared to the brake fluid. This means if air is in the lines it will compress too easily. When this happens, your brakes will feel too soft or even spongy.Do steel brake lines make a difference?Stainless steel lines have an inner tube wrapped in a stainless steel mesh. These lines are much stronger than rubber, but the increased strength comes with a larger price tag as well. These types of aftermarket brake lines do not flex and expand under the extreme pressures when the brakes are applied heavily.