Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - power steering pump issue
View Single Post
  #4 (permalink)  
Old 07-01-2011, 09:35 PM
Bigolotava's Avatar
Bigolotava Bigolotava is offline
Registered User
Last photo:
Join Date: Apr 2004
Location: Chandler, AZ
Age: 57
Posts: 30
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
No problem... if you didn't mess with the pressure regulator, I wouldn't touch it, unless it's leaking and you have a new O-ring for it.

On your power steering pump there's a what looks like a large bolt on the rear of the reservoir that the high pressure hose screws into. This is actually a flow control valve. Check-out the link below for a great close-up picture that explains it very well:

1 = Flow Control Valve (O-ring goes in groove to the left of the groove labeled "A")
2 = Pressure Regulator (easy to install backward if you've never done before)
3 = Spring

Anytime you remove the flow control valve, you should replace the O-Ring, as it gets hard with age and fails to seal, causing an annoying drip/leak that often is mis-diagnosed as a leaky high-pressure hose. You can get replacement O-rings at NAPA, your GM dealer, Autozone or Checker/O"Reilly.

Prior to installing a new O-ring it's best to wrap a piece of Masking or Duct tape over the threads (they're sharp!) to avoid tearing or cutting the new o-ring when you're installing it. Once installed, remove the tape and you're good to go!

Hope this helps,


Last edited by Bigolotava; 07-01-2011 at 09:42 PM.
Reply With Quote