I live an hour southwest of Chicago and have been researching problems with my wife's Trailblazer. I found some information on Edmond's, but ended up just changing out good, working parts. The information I found in the appropriate thread on this site is incredible. The volume, details, drawings, and photos blew me away. Fixing the problems will no longer be difficult, thanks to the incredible posts I have found, and that appears to be just the tip of the iceberg. Thanks everyone! :thx