The power steering pump pulley is a vital component that allows the vehicle to turn the wheels smoothly.
Power steering pump pulley essenceThe power steering runs on pressurized fluid which is powered by the engine. A vehicle can have a single or even up to two drive belts that assist the power steering pump. The drive belt is important since it makes the pulley rotate causing it to help pressurize the system.
When the engine is off the power steering has no movement and the pump stays still as well. The bearings are relied on by the power steering pump pulleys to operate properly but can wear out quickly due to heat and friction.
Common issues with a power steering pump pulleyThe power steering pump pulley can lead to steering problems(oversteering/understeering).