If your brakes feel spongy or you have to press the pedal further than usual to engage the brakes, it could be a sign that your brake lines are clogged. Other signs of clogged brake lines include a braking system that takes longer than usual to engage, or a brake warning light on your dash. If you suspect your brake lines are clogged, the best course of action is to take your car to a qualified mechanic or dealership for inspection and repair.