I need help! I have looked for an installation guide everywhere and cannot find one. I'm pretty sure I need a new coupler, asI have the "rocks" noise coming from the sc. Also need a vacuum diagram as it looks like I am missing a hose connection. There isn't a check engine light, and otjer than the clanking in the sc my car runs great. Any help? I have looked online for a coupler, but it has been discontinued so there isn't a parts list or even a diagram, I have no idea what one I need. So I went to the auto parts store, they can't order one without a part #, so I went to a dealer, he couldn't even find it anywhere in their system, just told me it was discontinued, I already knew that...no help.
Here is a pic of the line to nowhere