Vehicle Questions and Answers
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Several things can make your 2015 Nissan Altima's power steering system noisy, with the most minor issue being a low level of power steering fluid. Fortunately, this is the likely culprit and easiest to identify, so it's best to check this first. If you find the fluid is low, simply top it up with the right kind and see if the noise goes away. Another common problem is air bubbles in the system due to seal deterioration, which may require a bit more effort but is still relatively inexpensive to address. If these issues don't solve the noise problem, then it's probably a faulty power steering pump that needs attention.
The power steering noise in the 2015 Nissan Altima may be due to issues related to the power steering fluid that the pump is trying to move. If you have been regularly maintaining your vehicle, such as changing the power steering fluid when needed, the noise could be caused by air bubbles in the system, a leak in the power steering, or a failure of the power steering pump.
I'm experiencing the same issue with my 2018 vehicle. I've visited two different dealerships, and they both told me that the noise it's making is common and nothing to worry about. I'm frustrated because I believe the pump is failing, but they insist it's just a normal sound.