Earlier today, I noticed my 2011 Subaru Impreza was stuttering when I turned the wheel completely left or right. Not only was it stuttering, but the battery light would flicker as though the battery was going to die. I made it to Auto Zone to check my battery and alternator, both of which passed. However, while I was showing him the issue, when I turned the wheel completely right or left, the power steering pump pulley would stop spinning, then struggle to start spinning again. However, the belt would continue to run as it’s being pulled by other accessories, but the power steering pulley would still struggle to spin. (Over time, my guess is that friction would eventually burn up the belt and cause it to break.)
I’ve had the A/C belt, serpentine, and the timing belt (with all accessories) replaced within the last 5,000 miles.
I’ve replaced power steering fluid within the last 2,000 miles.
This morning, I tried removing the reservoir cap and turned the steering wheel to remove air bubbles. It didn’t help. The hesitation and stuttering is getting worse.
At first glance, I would guess the power steering pump is failing, but I’m not a mechanic, therefore it’s just an educated guess.
What do you think?