Do you notice any odd shifting or engagement characteristics?
Where do you hear this noise?
When do you hear this noise?
Can you do anything to duplicate the noise?
Inside the drivers door jam is a vin label I need the letter under TR
I need this letter.
What do you mean by it shifts like it is OD.
Does it have any delayed or harsh shifts?
Hello I'm Chris a Ford Certified transmission specialist.
Thanks for asking your question. I am eager to get your vehicle back up and running correct, so if this information is of aid PLEASE PRESS ACCEPT. Please reply if further discussion is needed.
Since you have or notice no shifting faults I can't give you ant ideas as to what the concern is. One of the most common faults is torque converter lockup slippage which occurs in 3rd and 4th gear of your 4R70W transmisison. So to find out what the concern is you need to use a scan tool and pull the codes from the computer which will show a diagnostic trouble code. Auto Zone does this for free.
Did the light turn off after the codes were pulled?
This description of the noise is hard for me to make in my head as a noise heard on a vehicle?