If your 5.7 Hemi engine needs a new serpentine belt, you'll be glad to know that it's a relatively easy process. Here's a step-by-step guide to putting on a new serpentine belt on your 5.7 Hemi engine:
1) First, open the hood and locate the tensioner pulley. This is the pulley that keeps the proper tension on the serpentine belt.
2) Using a wrench or ratchet, loosen the bolt on the tensioner pulley so that you can move it out of the way.
3) Take off the old serpentine belt by simply slipping it off of all of the pulleys except for the tensioner pulley.
4) Put the new serpentine belt around all of the pulleys EXCEPT for the tensioner pulley, and then feed it around that last pulley as well. You may need to wiggle things around a bit to get everything lined up properly.
5) Once everything is in place, use your wrench or ratchet to tighten up the tensioner bolt again so that there is proper tension onthe new serpentine belt. Make sure not to overtighten! And that's it! You've now successfully put on a new serpentine belt onto your 5/7 Hemi engine