no " whir" from fuel pump
Are you getting fuel pressure? It can be hard to hear the pump working, especially if the rubber insulators are getting soft. If you don't have fuel pressure and you're sure you changed the right relay, you may have to check the wiring for a short or open. Before you start looking, though, are you sure you plugged it back in? If the fuel gage is reading empty, check the connectors.
Search Dodge Caravan Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Dodge Caravan Experts