Power steering replaced

[barkingspider]

My Avalanche was always louder than I wanted when it came to the power steering, chalked it up as normal, well it seemed to get louder so I crawled under and sure enough the bottom side was wet w power steering fluid. Didn’t have time to wait for the replacement pump from online order so I just went to the local Chevy dealer to get OEM, $300 ouch. Also bought the $37 harbor freight pulley tool kit and went at it. Took a total of 8 hours taking my time and making a run to get a new o-ring. No real hiccups, cleaned up the underside that had caked on dirt,etc, filled w Lucas PS fluid and took it for a test drive. Big difference, it’s silent as a whisper now, due to the new pump, not the Lucas fluid

 

[Oillover]

My PS system (pump and R&P) is OEM from 1988 and still runs whisper quiet with no leaks.
I chalk it up to regular drain and fills. The additional debris in the system is the cause of noise and eventually, leaks.

 

[Astro14]

I would bite the bullet and go OEM in this case, too. Cardone, and most of the rebuilders out there, are pure junk.

 

[SC Maintenance]

My PS system (pump and R&P) is OEM from 1988 and still runs whisper quiet with no leaks.
I chalk it up to regular drain and fills. The additional debris in the system is the cause of noise and eventually, leaks.

Do you actually crack a line, or just suck what you can out of the resevoir and refill (what I do). I always wondered if I should drain it completely from the bottom?

 

[Nukeman7]

So why are the threaded mounting holes reversed (i.e., mirror-imaged) between the two PS pumps in the first picture? Is the bottom-most hole not used in this application?

 

[Oillover]

Do you actually crack a line, or just suck what you can out of the resevoir and refill (what I do). I always wondered if I should drain it completely from the bottom?

I just pull out as much as I can with my fluid extractor (same tool I use for oil and trans fluid changes).
Many think you need to pull a line to get it all out, but even a small amount swapped out makes a difference in the long run.