What is a power steering pump pulley?
A power steering pump pulley is a mechanical component of many power steering systems
. It attaches to the power steering pump’s input shaft and connects the serpentine or drive belt to the shaft. As the engine runs, the serpentine belt rotates the pulley, driving the pump and allowing it to generate the hydraulic pressure necessary for the power steering system to function. When should I replace the power steering pump pulley on my car?
There is no set replacement interval for the power steering pump pulley. That means you’ll only have to replace yours if it fails. The most common symptoms of a bad pulley include:
Burning smells from the engine: If the power steering pump pulley bearing seizes, it can cause the belt to smoke.
Power steering problems: A bad pulley can cause the serpentine belt to jump. This can cause overheating of the pulley and pump, leading to power steering issues, like jerky steering, a stiff steering wheel, vibrations in the wheel, and a complete loss of power steering assistance.
Drive belt damage: A faulty pulley will likely lead to serpentine belt damage. You might notice the belt squeals when you start the engine or begins fraying or cracking prematurely.
Power steering fluid leaks: A malfunctioning pulley can lead to power steering fluid leaks. If you notice red or reddish-brown liquid beneath the engine bay, the pulley could be to blame.
Keep in mind: These symptoms could be caused by other issues, like bad hoses, a faulty power steering pump, or even a worn-out steering rack and pinion. The best way to accurately diagnose your problem is to visit a certified repair technician.
How often should I replace my power steering pump pulley?
There is no set replacement interval for the power steering pump pulley. And in most cases, the pulley will last for the vehicle’s lifetime. That said, the pulley can wear out over time—and if that occurs, you’ll need to replace it.
Some of the top signs of a bad power steering pump pulley include jerky steering, a burning smell from the engine, and complete power steering failure.
Can I replace my power steering pump pulley myself?
A power steering pump pulley replacement requires mid-level mechanical skills and access to basic and specialized tools. Experienced hobbyists and DIYers should be able to handle the task with relative ease, but automotive novices are probably better off contacting a professional mechanic.