I am looking for some advice regarding the secondary tensioners. I have a 1998 XJ8 with 27,000 miles. I have been doing the research with regards to the tensioners failing. I am looking into either replacing the tensioners as preventative maintenance or just purchasing and extended warranty to cover any repairs.
My question is, if I have the tensioners replaced, are the newer parts still subject to the same failure rate? Thus they would need replacing every 50,000 miles? Also it I were to seek an extended warranty, can anyone recommend a company that stands behind the coverage they issue. Thanks for any help anyone can offer.