1) Noisy power steering pump: If you hear a whining, humming, or grinding noise when you turn the steering wheel, it could be a sign that your pump is failing. The pump may also make a noise when you start your car, or when it is idling.
2) Leaking power steering fluid: If you see a puddle of red or brown fluid under your car, it could be a sign that your power steering pump is leaking. Check the level of power steering fluid in your car's reservoir. If it is low, you may need to add more fluid.
3) Stiff or unresponsive steering: If your steering wheel feels stiff or unresponsive, it could be a sign that your pump is not providing enough pressure to the steering system. This can make it difficult to turn the steering wheel, especially at low speeds.
4) Burning smell: If you smell a burning smell coming from your car, it could be a sign that your power steering pump is overheating. This can happen if the pump is not properly lubricated, or if it is working too hard.
If you notice any of these signs, you should have your car checked by a mechanic. A faulty power steering pump can be dangerous, and it can make it difficult to control your car.