Away from the serpentine belt
Replace the tensioner pulley
The easiest way to loosen the tensioner is to use an automatic belt tensioner. This can be used on a serpentine belt which is connected to every pulley on the engine.belt.
use a breaker bar to release pressure on automatic belt tensioner
there should be an automatic tentioner on the serp. if not look at the alt it will have slotted holes to loosen up
If it
The serpentine belt on a 2003 Toyota Rav4 can be loosened by turning the retaining bolt on the idler pulley. The belt can then be shifted inward to loosen.
If it is a plug loosen counterclockwise If it is a petcock loosen clockwise
The bolt has left-hand threads, and requires a lot of torque. Turn counter-clock-wise to loosen/remove the serpentine belt, then use a cheater-bar on your wrench to loosen the pulley-bolt (turning clock-wise).
Loosen the tensioner pulley. The serpentine belt will become loose and can be removed. Put the new serpentine belt on and tighten the tensioner pulley.
To loosen the tension on a serpentine belt on a 2005 Grand Caravan 3.8L, turn the nut of the belt tension pulley to loosen it. Adjust the belt, then tighten the tension pulley by turning the nut in the opposite direction.
it's self adjustable
To get the serpentine belt off an engine fan, loosen the tensioner pulley. This pulley is the one with a bolt in a slot that can be adjusted. Then remove the belt.