RAM 2500 Truck 2WD V10-8.0L VIN W MDC (1999)
Fuel Filler Cap: Service and Repair
If replacement of the fuel tank filler tube cap is necessary, it must be replaced with an identical cap to be sure of correct system operation.
CAUTION: Remove the fuel tank filler tube cap to relieve fuel tank pressure. The cap must be removed prior to disconnecting any fuel system
component or before draining the fuel tank.