the fan is held to the rest of the engine/cooling system via a Fan Clutch.. a part that looks like shredded paper rolled up to form a circle. Maybe the fan clutch failed and it came loose somehow, or it just came loose.
Put it back on there. Then with the engine off and key removed spin the fan by hand. There should be some resistance if the fan clutch is good. Start the car and see if the fan starts to spin. If so then fan clutch is most likely ok and all you need to do is fix the leak place.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.