02 Mustang GT, 155k
TLDR; Perpetual power steering whine when at idle and especially when braking and turning.
Had a bad brake fluid leak that ended with no brake pressure at all. Replaced caliper and line and bled system and that fixed that and the pedal felt normal.
However, as soon as I started it it started making a very loud power steering noise. It gets worse when turning and when braking. These cars have a hydro boost brake booster so the brakes are related to the power steering fluid in ways. I don’t think the steering is any worse now, but the brakes feel different, you go further on the pedal to get the same braking pressure. The noise is really bad even just at idle.
The level of fluid is fine. I attempted to bleed the ps system by turning wheel lock to lock 10 times, and pumping brake 10 times with res open and car off but that didn’t really do anything.
Could it really just be air in the system? Maybe I’m not bleeding it right. And why did it happen after brake replacement?
After attempting to bleed it a second time the noise was a little less worse when idling and turning but still awful when braking. I looked at the reservoir after I started it and turned it off and there were tons of bubbles.
(This is my first post so please let me know if I'm posting in the wrong place)
TLDR; Perpetual power steering whine when at idle and especially when braking and turning.
Had a bad brake fluid leak that ended with no brake pressure at all. Replaced caliper and line and bled system and that fixed that and the pedal felt normal.
However, as soon as I started it it started making a very loud power steering noise. It gets worse when turning and when braking. These cars have a hydro boost brake booster so the brakes are related to the power steering fluid in ways. I don’t think the steering is any worse now, but the brakes feel different, you go further on the pedal to get the same braking pressure. The noise is really bad even just at idle.
The level of fluid is fine. I attempted to bleed the ps system by turning wheel lock to lock 10 times, and pumping brake 10 times with res open and car off but that didn’t really do anything.
Could it really just be air in the system? Maybe I’m not bleeding it right. And why did it happen after brake replacement?
After attempting to bleed it a second time the noise was a little less worse when idling and turning but still awful when braking. I looked at the reservoir after I started it and turned it off and there were tons of bubbles.
(This is my first post so please let me know if I'm posting in the wrong place)