RepairPal Certified shops can diagnose and repair your 1998 Jaguar Vanden Plas. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
You must have an original plastic thermostat housing.When they get old,they soften when hot and the hose pops off .Replace the housing with an aftermarket aluminium housing and your problem will be solved
Mcjag