 As your power steering pump ages, seal leaks may occur, causing the power steering system to lose fluid. Your power steering system may also develop an annoying squeal, and the steering may become more difficult to handle. By using Luca's Power Steering Stop Leak, you will stop the seal leaks, reduce slack in rack and pinion, eliminate the squeals and hard spots in your power steering system. It is guaranteed to stop seal leaks for your money back.