Squealing While Turning

• A squealing sound while turning, particularly at tight corners or while driving slowly, is a symptom of a bad power-steering pump.
  
  

Squealing at Start-Up

• A squealing or chattering noise from under the hood when the car is first started may indicate problems with the power-steering pump.
  
  

Stiff Steering

• Stiff steering in cold weather or while turning at low speeds is a symptom of a bad power-steering pump.
  
  

Erratic Function

• Erratic functioning, such as a bit of slippage while turning the wheel, can indicate a bad power-steering pump.
  
  

Lack of Power

• Power steering that seems to go out for a second during slow turns is a symptom of a failing power-steering pump.