Answer1.
I suppose you could, but these idler pulley's are not that expensive to replace the whole thing. They do fail (a weakpoint for these motors), but usually give some audible warning, also...
It's easy, but you'll need a helper. Once you have a replacement ready to go, find a socket that fits the pulley bolt on your old one. Ensure that there is a belt routing diagram under the hood or...
you should be able to put a socket wrench in the front of the idler pulley. Push away from the tension of the belt, then remove the belt. MAKE SURE you remember how the belt came off. Loosen the...