replaceing alternater how do I release the tension on belt 3.9 L V-6 on 2004 Ford Freestar

need to release belt tension on 3.9 L V6 with A/C

Asked by for the 2004 Ford Freestar
Try this:
Rotate the tensioner counterclockwise.
Push the spring clip toward the tensioner to lock the accessory drive belt tensioner in place.
You might find a free repair manual here:
Any suggestions on how to access the tensioner in my 2005 Freestar. There isn't room there to use a socket and, with a plain old wrench head on the extender bar, there's no room to turn it. Hopefully, something simple I'm just missing?