Whining noise coming from the Steering

Tiny
DESHAWN
  • MEMBER
  • 2010 NISSAN MURANO
  • 3.5L
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 86,000 MILES
When I steer I hear a whining noise. I just got my outer tie rod changed, but can still hear it.
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Monday, December 5th, 2016 AT 9:21 PM

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Tiny
CARADIODOC
  • EXPERT
Tie rods, and other mechanical steering parts do not have any effect on power steering noises. That is unless the noise started right after that service. Replacing a tie rod end requires the vehicle be aligned, and part of the procedure involves turning the front wheels left and right quite a bit. Doing that when the engine is not running often pushes power steering fluid out of the pump and reservoir, then, when the engine is started, the fluid level is low and the pump can draw in air and make a buzzing noise.

On most vehicles it is simply necessary to refill the power steering fluid and run the steering from side to side a few times to expel the air. Fords are one of the very frustrating notable exceptions. There are all kinds of special tools on the market for bleeding the air out of those systems.

A power steering pump can make noise even when the fluid level is not low. That is a common GM problem. Replacing the pump solves that. To identify a noisy pump, if it is not already obvious, use a stethoscope to listen next to where the high-pressure hose is connected, while the engine is running. There is a spring-loaded valve inside that port that can make a buzzing noise. Low fluid level sounds the same from inside the car, but that is a deeper and rougher sound when you listen under the hood, especially when the cap is removed from the reservoir.
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Monday, December 5th, 2016 AT 9:40 PM

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