 Bought my 2004 Kia Sorento used in July 09. Had the bolt drop off three times, since. First two, it was under warranty. Shortly after the second fix by Sports Auto World in Bourne, it developed a new symptom, a burning smell. Took the car to the dealer, he was gone. (along with $1500 for an extended warranty that he never bought) Executive Kia, in New Bedford, MA took it in, and now, it was the Main Gasket?? I asked about the bolt issue, they assured me it was "fine." It died 3 days later. They claim they didn't touch it. Not under warranty. Too bad. I haven't even had the car a full year! Replacing Bolt repeatedly is not reasonable expense.  