ok it's not a buick but maybe someone can help. i bought a 96 olds 88 with a super 3.8 and drove it a day when it started knocking. i took it back to the dealer who is fixing it, but my question is how reliable will it be when i get it back, is this something i need to keep in mind while driving it. i know their doing as little as possable to fix it so i want to be prepaired if something else is to happen. should i just rebuild it anyway? any input would help thanks