Why do I smell antifreeze inside and out of my van?

You may have a small enough leak that evaporates before it reaches the ground. And the anti freeze evaporating is what you are smelling. You should have your cooling system pressure tested for leaks before the problem escalates into something worse.

Hi kmwmac, There are many reasons this could happen. If there are no obvious signs of leaks on the ground, the best option would be to bring the van to a shop you trust and have them perform some diagnostic testing on the coolant system. Sometimes by just having the van on a lift and knowing the common issues to look for may be enough to figure it out. If the cause is not obvious at that point, the shop may need to perform tests such as a coolant system pressure test, combustion gas test, coolant flow test, etc. We have seen many problems with the coolant tubes on these vans rotting out and starting as a slow leak but becoming a gushing leak very quickly if the tube rots all the way through...this is especially common on the vans that have rear heat. Since problems with the coolant system can go from minor to makor very quickly and can get quite costly to repair once they become major, I would recommend having a professional look at it sooner rather than later. Jason