Well.......give it a little time and the problem becomes more obvious. Looks like my initial problem with the whining was an indicator for an upcoming problem with the rack. The original fluid level was fine the first day and was refilled to the right level after changing the fluid and everything worked OK. But now the rack is leaking out of the right bellows. Apparently the rack failed on the second day (though now no whining noise as long as the fluid level is right). Seems the bellows initially contained all the leaking fluid and the foaming was a secondary effect from the lowered fluid level and air entering the rack. Looks like I need a new rack...Thanks to all who responded. Bob ----- Original Message ----- From: "Tom Jennings" <tomj@xxxxxxx> To: <amc-list@xxxxxxx> Sent: Wednesday, May 03, 2006 2:17 PM Subject: Re: [AMC-List] Non AMC Power Steering Question > On Wed, 2006-05-03 at 03:43, Sandwich Maker wrote: > >> i keep thinking it must have a crack, loose fitting, bad o-ring or >> something, on the suction side of the pump, so that it can pull a >> little air into the fluid. but i'm baffled why it took a day for the >> foaming to recur. >> >> the other time foaming happens is when there's a leak on the pressure >> side; when the fluid level gets low enough the pump pulls air from the >> reservoir, but this clearly isn't your problem. > > > It could also be simply overfilled; there is a recommended fill > proceedure, and overfill is a big mess. The original problem could have > been a cracked hose etc sucking in air, but compunded by overfilling. > _______________________________________________ > AMC-List mailing list > AMC-List@xxxxxxxxxxxx > http://www.wps.com/mailman/listinfo/amc-list > > or go to http://www.amc-list.com > _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.wps.com/mailman/listinfo/amc-list or go to http://www.amc-list.com