Check all of the pulleys to make sure they are running in a straight line.
Timing chain.
Chain
Yes.
yes
The belt tensioner is rotated clock wise with a 15 mm wrench or belt tool.
The fan is electric, not belt driven. The serpentine belt is has a spring loaded tensioner. If the belt is loose, the tensioner has failed.
Not sure ,but it costs $115 to change mine on my 1998 Dodge Durango.
Change the belt
The 1990 dodge caravan has a transverse mounted engine therefore it doesn't have a fan belt!
remove front of engine and remove timing belt It runs the pump
A 2004 Dodge Grand Caravan has one belt.
You can begin by removing the wiring harness from the back of your 1998 Dodge Grand Caravan alternator. Remove the alternator belt. Remove the retaining nuts. Reverse the process to install your new alternator.