transmission is not changing into gear once I take off from complete stop?

2012 FORD EDGE
202,300 MILES • 2.0L • 6 CYL • TURBO • 2WD • AUTOMATIC
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KIMYA92!
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When get on highway the transmission isn't changing into gear once I take off from complete stop and as I'm accelerating the vehicle seems like the humming sound gets louder and louder.
Jan 20, 2023 at 10:40 PM
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STRAILER
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This humming sound could be the transmission filter being plugged which will affect the transmission operation. Here is a generic guide to help you step by step with instructions in the diagrams below to show you how to on your car.

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

Check out the images (below). Please let us know what happens.
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Jan 21, 2023 at 11:39 AM
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KIMYA92!
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Okay, I appreciate you. I haven't taken it to the shop yet, but it's in progress of going I just hope I don't have to get new transmission. My vehicle listed above is a Limited model.
Jan 21, 2023 at 11:53 AM
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STRAILER
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Yep, we try to fix the problem and use a new transmission as the last resort. Let me know what happens please.
Jan 22, 2023 at 12:14 PM
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KIMYA92!
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I will.
Jan 22, 2023 at 1:07 PM