Hello, this will absolutely take some hands on inspections to find out what is happening and why. Seek some local help.
Use this link to find some shops near you that can help with your concern:
www.repairpal.com/repair-shops
RepairPal Certified shops can diagnose and repair your 2013 Chrysler Town & Country. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.