Replace EGR actuator DD13 DD15 engine

In this video I'll be replacing an EGR actuator on a DD13 DD15 engine
Disclaimer: This video is for informational purposes only. Attempting repairs on a Diesel engine, especially those involving the emissions system, can be complex and dangerous. Consult a qualified mechanic if you are unsure about any part of this process.
Tools You'll Need:
Socket Wrench Set (Metric)
Wrenches
Pliers
Coolant Drain Pan (Optional)
Rags
New EGR Actuator (Double-check compatibility with your specific DD13 engine model)
Steps:
Safety First! Park your truck on level ground, engage the parking brake, and chock the wheels.
Locate the EGR Actuator: The EGR actuator is typically mounted on the intake side of the engine. Consult your DD13 service manual for the exact location.
Disconnect Battery (Optional): For some models, you may want to disconnect the battery as a safety precaution.
Drain Coolant (Optional): Depending on the location of the EGR actuator on your engine, you may need to drain some coolant to gain access.
Disconnect Electrical Connector: Locate the electrical connector for the EGR actuator and carefully unplug it.
Disconnect Vacuum Lines: There may be one or more vacuum lines connected to the EGR actuator. Use pliers to pinch the clamps and disconnect the lines.
Remove Mounting Bolts: Use the appropriate sockets or wrenches to remove the bolts holding the EGR actuator in place.
Remove EGR Actuator: Carefully remove the old EGR actuator, being mindful of any remaining coolant or debris.
Install New EGR Actuator: Position the new EGR actuator on the mounting bracket and secure it with the bolts you previously removed. Tighten the bolts to the recommended torque specifications (refer to your service manual). 1 1. Reconnect Vacuum Lines: Reattach the vacuum lines to the EGR actuator and secure them with the clamps.
Reconnect Electrical Connector: Plug the electrical connector back into the EGR actuator.
Refill Coolant (if drained): If you drained any coolant, refill the radiator and overflow tank following the proper procedures in your service manual.
Reconnect Battery (if disconnected): Reconnect the battery cables if you disconnected them earlier.
Calibration Note: Some DD13 engines may require calibration of the EGR actuator after replacement using diagnostic software. Consult your service manual or a qualified mechanic to determine if this is necessary for your specific engine.
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[@chiragbarot7533]

Thanks for sharing video
If possible try to show part number reason to change and able to solve problem thx

[@vincentrogers3486]

Obviously it stopped working but what were the symptoms and how did you know that was your problem?