How do you loosen the belt tensioner on a serpentine belt on a 1989 Plymouth acclaim?

To loosen the belt tensioner on a 1989 Plymouth Acclaim, locate the tensioner pulley, which is typically mounted on the front of the engine. Use a wrench or a ratchet with the appropriate socket to turn the tensioner pulley counterclockwise, which will relieve tension on the serpentine belt. Once the tension is released, you can remove the belt from the pulleys. After replacing or adjusting the belt as needed, release the tensioner to reapply tension to the new belt.