Engine light went on with problem. Transmission is stuck in first gear but the transmission selector is in drive. I am able to go up to 30 mph but the rpms are winding out.
Transmission is stuck in first gear on 2006 Dodge Sprinter 2500
The first thing to do is attach a scan tool to the 16 pin diagnostic socket under the dash and see what code is stored. The vehicle may be stuck in a limp home mode. The fault code will indicate the trouble shooting path to follow to figure out what is wrong with the engine or power train.