Replace the Tensioner?
[Don Foster] A new tensioner every 150k is the prevailing wisdom as I understand it. No need for a new spring — reuse the existing spring. You’ll note a small hole in the shaft inside the spring. Compress the spring with old tensioner and slide a nail through the hole. Remove the tensioner and install the new one. Then pinch up with a big pair of Channelocks and remove the nail. And at 225k miles, start thinking about the three front seals and water pump — perfect time to do all that stuff.
