My was almost completely dry n then it made a loud racket n now my truck won't start at all

Hello, all of that information sounds very discouraging regarding your engine and what may have happened internally. Without proper lubrication, internal engine components will become damaged. If they get damaged enough, either initially or down the road, irreparable damage will have occurred resulting in possible internal engine noise and even engine lock up. This sounds like what may have happened to your Dakota, unfortunately. Hands on inspection by a skilled technician is needed. www.repairpal.com/repair-shops