The hard line hose might very well be considered part of the check valve, it's so tightly attached. But the actual check valve (can't post a pic yet, I have to get my camera back from work) is a small black plastic 'pancake' with stems coming out of each side. The broken part is one of the stems, right where it attaches to the hose. GM got back to me and said that that particular brake booster assy was used on Saturn L300's, from 2000 to 2005, so at least I have some latitude when I call around tomorrow. Nobody has a 2001, but maybe one of the others can be found. Thanks very, very much for your help in the search!
Wednesday, May 11th, 2011 AT 11:22 PM