Change History

The tensioner is filled with oil, which dampens the action of the spring. You prefill them before installing. If your engine doesn't have oil pressure you have bigger problems.
The tensioner would have to have a prolonged period without oil (such as a clog) to lose its oil since it's mostly captive. You don't need to replace them to fix a clog in most cases.

That said, If the early ones don't fit a 2001 then I have a set I can sell you. I used them for only a short time before replacing the 1999 engine with a 2001 engine. Since they were new, I took them out when I got rid of the engine.

The tensioner is filled with oil, which dampens the action of the spring. You prefill them before installing. If your engine doesn't have oil pressure you have bigger problems.

That said, If the early ones don't fit a 2001 then I have a set I can sell you. I used them for only a short time before replacing the 1999 engine with a 2001 engine. Since they were new, I took them out when I got rid of the engine.