transmission service instructions please

2006 FORD F-150
110,000 MILES • 5.4L • V8
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ELMER CORWIN
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I have the truck listed above with a 5.4 Triton engine. I have a lack of power when accelerating it almost seems like a transmission slipping when accelerating also, probable causes.

Dec 19, 2020 at 6:16 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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STRAILER
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We need to know which is happening, we can do so by checking the condition of the transmission fluid, it could be burnt which we should do a service.

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

Next we should run the codes.

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

This guide can help as well:

https://www.2carpros.com/articles/engine-has-low-power-output

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Mar 23, 2021 at 12:19 PM
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ELMER CORWIN
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Doing a diagnostic check lean codes came up on bank 1.
Mar 23, 2021 at 12:19 PM
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STRAILER
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That wont cause the transmission issue. we will need to get a sample of the fluid to see if it smells burnt please let me know. if it needs a transmission rebuild this video will show you the steps to remove it. (similar job)

https://youtu.be/3vJAojsrfuU

Please run down this guide and report back.
Mar 23, 2021 at 12:19 PM