Got to use my *very best* swear words today! This is the line pressure sensor on a 545RFE transmission in an 02 Jeep Grand Cherokee. I'm having issues shifting 2-3 and 3-2, and I got an error code P0932 (LINE PRESSURE SENSOR CIRCUIT FAULT), so it was pretty obvious what I needed to replace.
Now, the video to replace this used a Ram 1500. Lots of room, super easy! The Grand Cherokee does *not* have that sort of room. I had about a millimeter of clearance to get a socket in here and remove the bolt holding the sensor in place. Threading the bolt back in was especially awful.
But hey, it works! Nice clean shifts now and I don't have any more codes!