Okay, I enlarged the picture to try to get a better view of the sensor. It is on the back of the passenger cylinder head and the EGR tube runs over it.
You need to remove the EGR tube to gain access to it. You will need to go over the top of the motor to get to it. It is a very tight area.
https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement
I attached some pictures below for you to view. The tube is secured by fittings. They should be a 3/4 or 7/8 open-end wrench for loosening.
Roy
Images (Click to make bigger)
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Saturday, June 5th, 2021 AT 3:56 PM