Saturnfans.com would be a good place to search/post. They have a couple of guys there that know saturns inside/out
. I plan to, waiting for account approval but I have read through many, many posts on saturnfans already and I can't recall any advice past the last step being to remove the exhaust manifold and clean the manifold and head ports. I just know there are some very talented S-series owners here and I believe there are at least a few members that span both sites.