What causes a power steering pump to whine?

+1 vote
asked Mar 24, 2018 in Other-Cars/Transportation by davsock (220 points)
What causes a power steering pump to whine?

What can be the cause of a power steering pump to make a whining noise?

1 Answer

0 votes
answered Mar 24, 2018 by Mechanic21 (29,150 points)
When a power steering pump starts to make a whining sound then it's usually due to trapped air in the system or your low on power steering fluid.

I would first check the power steering reservoir to be sure the power steering reservoir is full of power steering fluid and not low.

If it's low top it off but don't overfill it.

If it still whines then you likely have a hose leaking air into the system which might only needed tightened down or replaced.

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