as some of you know, i have had my timing chain tensioner replaced. it was a tsb. i got it done for 250. soon after i posted about hte knocking noise comming back and how i thought it was hte tensioner again. but it turns out it was a bad bearing in one of the pullys. my mom and dad went today to the dealer to check out hte noise and the dealer said it was hte pully and got it fixed for 160. i rather have done it myself but they got it done at the dealer. now there is no noise and i am happy