[SteelHeadz]

One way to verify a noise that you think may be coming from the power steering pump is to listen if the frequency of the noise changes with the input from the steering wheel. If it is coming from the power steering , check the fuid level, check the power steering lines for kinks, or contact to the frame or any where that it may cause a vibration when the steering is under torque conditions.. Also, If you have just replaced the pump, did you purge the air out of the system?. If the fluid is aerated due to air in the system then you will hear a steering noise similar to an old ford steering growl..Prolong use of the pump with air in the system will damage the new pump..