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Q: What else can it be?

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Recently replaced front driver side wheel bearing and axle to try to eliminate a noise/vibration. It's a buzzing sound that increases with speed and felt on the steering wheel, gas pedal. Noise and vibration goes fully off for a few seconds when I suddently turn left at high speeds but comes back as soon as I have wheels back straight. I'm thinking is the P/Steering pump now since streering wheel is a bit tight. Just bought SUV. No winding noise while taking turns. I also turned vehicle off in the highway going 55Mph, put tranmission on Neutral and noise/vibration continues exactly the same. Trying not to replace anything else again that is not necesarry. Thanks

My car has 120000 miles.
My car has an automatic transmission.

From what you’ve described, this sounds like potentially a power steering pump issue since the noise increases with speed which indicates it may be something related to the speed of pulley components. I would check power steering fluid levels to rule out the possibility of the pump just being low on fluid. If the problem continues to persist, consider contacting a certified technician, like one from YourMechanic, who can diagnose the noise you’re hearing and help you fix it accordingly.

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