I messed up (during PS rebuild) and snapped the two vacumn line posts on the power steering pump air control valve. New ACV is $104 from dealer !! So I just super glued the two posts back on and they seem to be ok. (battery is dead so I haven't been able to start truck up)

My question is what exactly does the air control valve do ? If they break off while I'm driving will the engine die, PS fluid leak out, etc ? I'm just curious so I can decide if I want to shell out the $104 for a new valve.
Thanks for any help.

You will get a vacuum leak. The purpose is to idle up the engine when you are turning (like into a parking place) at low speeds. Mine started to leak and the fluid was being sucked into the intake, what was not being burned was washing past the rings and into the crankcase. When I changed the oil there was about two quarts extra in the CC. I will bet there is no sludge in my engine. I took it off and broke the plastic body off of it and brazed it up to make a plug out of it. Capped off the two vacuum lines and all is good.

I just got done removing mine all together and didn't notice any change in idle function. Although the vaccuum port was already plugged up at the intake with carbon. A lot of people remove them if they don't have a/c. (it also controls the a/c idle up I believe). Sure made my engine compartment a lot cleaner looking too. I've got a good valve I will sell you if your interested PM me with an offer.

You can just cap the two ports that feed the valve, one at the intake and one at the idle up valve:

Wow, thanks for the replies guys..that is why I love this forum. Looks like we are mostly from Northern CA..Dublin here, but work sometimes around Roseville area. I will let you know if I decide the buy the ACV from you.

But before I do that, my damn pump is still leaking !I just bought a remanufactured one from kragen (used my old reservoir with new o-ring) and it appears to be leaking frmo bottom of reservoir. I looked at 1993 FSM and it only shows 1 o-ring, are there supposed to be 2 or something ? It snaps snugly into pump, but its leaking down from bottom right side of reservoir in back then drips to bottom side of pump. This is really frustrating as I tried rebuilding the original pump and it also leaked.
See the last picture of this great walkthrough to see the O ring I'm talking about.
http://members.cox.net/stacewilliams/ps-pump.htm
Any ideas ?