The 1990 Dodge Caravan has a transverse mounted engine therefore it doesn't have a fan belt!
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.
We have no way of showing any drawings or diagrams. Sorry.
Why won't the radiator fan start on my 1991 dodge caravan?
The map is usually located under the hood, and if not, you need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
NoNo
i would think it has a electrical fan unit this is true, and I have reason to believe there is no such engine type as a V-4. Not in the caravan industry. They either are 4 cylinders or V6.
radiator fan relay
You can spray it with a LITTLE belt dressing but don't overdo it. It also may be caused by sosmething not being alignied in the pulleys.
rub soap on the belt
Turn it off.
location for cooling relay on 05 caravan 3.8l
It doesn't use a fan clutch. It has electric cooling fans.