I own a 97 shuttle bus converted to a delivery van which I use in by business. It currently has 265,000 mi. Just today I noticed coolant streaming from the side of the coolant recovery reservoir/degas bottle(I'm not really sure what the proper term for it is--about the size of a volleyball w/the radiator cap on top). Can it be repaired, or do I need to replace it? Where can I locate one for a reasonable price? Thanks