One way is to put a wrench or, better yet, a long handled ratchet (12" or so at least)on the tensioner pulley center bolt and turn it such that the pulley rocks to one side or the other to relieve tension, slide the belt off and release the pulley slowly. Te reinstall the belt, use the same technique.
Done automatically by belt tensioner
The serpentine belt on a 2003 Dodge Dakota is replaced by loosening the belt tensioner and slipping the belt off. It can then be removed from the engine accessories and a new belt installed.
The pulley bellow the alternator is the tensioner. Rotate it with a 15mm to loosen belt.
Spring loaded belt tensioner on the lower driver side.
You don't. If it has stretched too much for the tensioner pulley to handle, you need a new belt. Or, if the tensioner pulley is not applying correct tension, the tensioner pulley must be replaced.
Take pressure off belt tensioner and belt should slide off pulleys
You can remove the old serpentine belt on your 2004 Dodge Ram by loosening the tensioner pulley. Put the new serpentine belt on and tighten it with the tensioner pulley.
You can do that by replacing the tensioner
No
The 1998 Dodge Dakota tensioner pulley will be the top pulley on the left-hand side of the engine. The tensioner pulley will be able to slide back and forth.
You don't. It employs a spring loaded automatic belt tensioner pulley located usually on the passenger side of the engine. If your serpentine belt is too loose, either the tensioner pulley has failed (possible, but unlikely) or the belt has stretched beyond the limits of the tensioner pulley and needs to be replaced (more likely).
The belt tensioner is self-adjusting.