Shift solenoid A stuck on

Hello, I'm Danny.

Taking the transmission pan off to get to the solenoids are just normal hand tools. The only specialty tool you would need is a professional scanner to aid in diagnosis and to program the new solenoid to your truck. Here are two tutorials show how to test wiring and how to service an automatic transmission:

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

I've attached picture diagnostic steps below to help determine the cause of the code on your truck. Hope this helps and thanks for using 2CarPros.