To change belt?
Use a 1/2 inch breaker bar and pull to relieve tension
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.
You need to loosen the belt tensioner. There is a large bolt that needs to be loosened in the center of the tensioner pulley. Then the small vertical bolt is turned in the direction to loosen the belt. After the tensioner is loose replace the belt and retension it.
Loosen the tensioner pulley. When the tensioner pulley is loose the belt will come off. Put the new belt on and tighten the tensioner pulley.
Loosen the tensioner pulley. The tensioner pulley will slide to the right. This will loosen the alternator belt. So it can be removed.
Place a breaker bar on the lug/hole on the tensioner; then pry against the tensioner.
Loosen the belt tensioner and take the old belt off. Put the new one on and let the tensioner back in position. If you don't have a tensioner, you'll have to loosen the alternator and ac compressor adjusting bolts.
Loosen the tensioner pulley. Put the belt around the alternator pulley and the tensioner pulley. Move the tensioner pulley to the right until the belt is tight. Tighten the tensioner pulley.
Loosen the tensioner bolt, let the spring loaded tensioner contact the belt. Then tight the tensioner bolt.
Insert a socket or wrench on the spring-loaded serpentine belt tensioner then pull back; the belt will loosen.
by loosening the belt tensioner
buy a belt, loosen the tensioner, replace belt
You will need to loosen the alternator belt with the tensioner pulley. When the tensioner pulley is loose the alternator belt will become loose. Put the new alternator belt on and tighten the tensioner pulley.