The fan on my 1999 3.3L Grand Caravan is running after I shut the engine off. I have never had any of my Caravans, K-car, or Pacifica do this. I am about to disconnect a fuse or battery. The service manual points to a number of things for me to look at but right now I am just trying to determine if it is ever going to shut off. Does the 1999 caravan have any normal operating condition where it should do this?