Truck has a reduced power light on?

The reduced power light means the truck is in limp mode. I have seen a dirty throttle body cause this issue, but we should run the codes to see which ones are stored, this guide can help:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is a guide to help you service the throttle body and I have included instructions for your car in the images below:

https://www.2carpros.com/articles/throttle-actuator-service

Check out the images (below). Please let us know what happens.