Repair 7

What Is a Power Steering Belt

A cars power steering depends on a constantly-moving belt to supply it with power. This belt, also known as a serpentine belt, typically supplies power to several other components as well.

Description

The power steering or serpentine belt consists of flexible synthetic material with a flat outer side and a grooved or ribbed inner side. This belt winds through a series of pulleys, with a device called a tensioner maintaining a precise amount of stress on the belt at all times, according to 2 Car Pros.

Function

The belt conveys power to various important engine components, including the power steering system, water pump, air conditioner compressor and alternator. Some cars, mostly older models, divide these tasks between two or more belts, according to Samarins.

Potential Problems

Power steering belts tend to fray and weaken through years of constant use. If this belt breaks the power steering will fail; any other parts the belt powers will also stop working. AA1 Car recommends inspecting belts at regular service intervals and replacing worn ones as needed.