Fairly normal. Fully (to lock) creates a big strain on the pump. It will destroy the pump if you hold it there long enough. Might check to make sure your idle's not set too low. 550 is about where it should idle with lights on, in gear (if auto), and a/c on  (if equipped).

Should be a bleed off in the pump to relieve pressure when you reach maximum travel and you can hear it, without it you can blow the pressure hose.

It's an internal pop off valve inside the pump, when you reach full travel the pump keeps building pressure until something gives, thus the reason for a pop off valve to release pressure, I'd say you need another pump.

Sounds like everything is normal, LOL..

Hi Fred, thanks for the diagram.  I had already got the new one before i seen your post.  are they hard to rebuild?

Thanks for the info pinto wagon.  All fixed up now and running smooth....  what a pain in the BuTT to change.....   all good to go now,

thanks guys!!!

casey

Biggest thing with rebuilt or new or even old pump is to make sure it does not run dry even for seconds when first filling it up. I have seen them score pump body to make noise forever by simply being slow to get more oil in there. As little as five seconds dry can score the pump if the parts scrape off oil to be dry. I always stand over the reservoir and have someone else crank the motor, that way I lose no time chasing the reservoir level, a good working system can void all oil in it in like ten seconds or less.

If old pump not making noise I wouldn't change it, the hose could've been ready to blow anyway. You NEVER hold power steering on the limit for more than a second, and risking things doing that, the pump ramps up to full output and the bypass (your 'bleed off') bumps open trying to save pump and lines. Sometimes it can't do it............ ..the systems are not supposed to be abused like that.