I'm not sure if Dodge made a Caravan in 77 but if you have a later one, open the hood and check to make sure that the cowl water drain hose is inserted properly. If that drain hose is dissconnected water runoff will dump directly on to the serpentine belt and cause it to jump off. Think about it, was it raining when the belt jumped? That drove me nuts, been there, done that.
Fit a new belt tensioner
dont run it so hard dont run it so hard
its either a dead short or not properly grounded check that out
That could be the cam shaft position sensor.Check that out>
Make sure that the fuse for the 1996 Caravan is the right size and type (slo-blo or fast-blo,) A meter will be needed to check for shorts to find the problem component.
remove neg batteries cable for 15 seconds
nerves
It's most likely one of two problems, either the relay is stuck or the temperature sensor is faulty.
I have heard the shradder valve is the tire valve stem ( internal valve ) that keeps air in the tire or else you will have a flat.This valve has many applications including air tanks
Your Explorer has a serpentine belt tensioner which keeps the proper tension on the serpentine belt unless the tensioner has failed.
i think that the 1997 dodge grand caravan 3.3 cyts off while driving due to faulty oxygen sensor locates on the manifold before the catalityc converter in upstream if downstream it is located after the catalityc converter if this doesn work for you try also checking fuel pump pressure and filter also may require coils to be replaced
A spring loaded pully that keeps the serpentine belt tight