[JL8Jeff]

I was taking the AIR tubes and check valves off the exhaust manifolds to transfer them to the headers and one of them is bad. My old 93 had a bad AIR check valve as well. I can't believe they require these as emissions equipment and they always go bad allowing the exhaust to get back into the smog system. It caused condensation to build up on my 93 and that filled the AIR pump with water and it froze solid in the winter causing it to blow a fuse. It's a cheap part but amazing how often they go bad.