I had the my N* time certed....under warranty. I posted my experiance on the oldboard. As I recall there was some question as to the validity of my dealerships diagnosis. To this day I wonder I really needed the job done (or if the job even GOT DONE!! for that matter). After all the first time I went in I was told that there was "NO FIX" to the problem and that I needed to buy a new/used Northstar....Cadillacs are bad *smurf*, however "some" dealerships give them a bad name IMO.