[Wayne 962]

I'm not sure - I haven't formed an opinion on "tensioner life" just yet. There have been reports of some failures, but not nearly as many as intermediate shaft bearings (IMS). Changing them is not an easy job at all. You need to lock the camshafts, and then replace them from within the engine bay. The ones you can remove from the bottom of the engine are easy - the one under the A/C lines on the top is a bear to get to.

-Wayne