How much thumb pressure is needed to check the power steering belt tension?

To check the power steering belt tension properly, a thumb pressure of 10 pounds is required. This specific amount of pressure helps ensure that the belt has sufficient tension without over-tightening it, which could lead to premature wear or failure. Applying exactly 10 pounds with your thumb allows you to assess if the belt has the right amount of slack, contributing to optimal performance of the power steering system. If the tension is too loose, it can lead to belt slippage, whereas too much tension can damage components like the pump or the belt itself. This balance is crucial for maintaining the efficiency of the power steering system.