Does not move after replacing transmission solenoid block

When replacing a transmission solenoid block on a 2004 Dodge Durango, it is generally not necessary to reprogram the computer (PCM - Powertrain Control Module). However, there are a few things you can check if the vehicle is not moving at all after the replacement:

Transmission fluid level: Ensure that the transmission fluid level is correct according to the manufacturer's specifications. Low fluid levels can prevent the transmission from engaging properly.

Solenoid block installation: Double-check the installation of the solenoid block. Ensure that all connectors are properly connected and that the block is securely installed. Any loose or incorrect connections can affect transmission operation.

Wiring and electrical connections: Inspect the wiring and electrical connections related to the transmission and solenoid block. Ensure that there are no damaged wires, loose connections, or broken plugs. Make sure all connections are secure and properly seated.

Diagnostic trouble codes: Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) stored in the PCM. These codes can provide valuable information about potential issues. Clear any codes and see if the vehicle operates normally afterward.