Sup everyone

Been doing some searches but have turned up with little info on my problem. I've been trying to remove my knock sensor with no luck so far. As i turn the wrench all that moves on the knock sensor is the middle piece. It doesn't even seem to budge the threads at all. When i started i used a little bit of pressure and the middle started to turn but the sensor was not moving off the block. My questions would be:

Is the KS broken? How do i go about getting this off? And has anyone ever had this problem before? Any ideas would be appreciated...

Thanks

 

mine was a pita to get out as well and i allready had a new one so i just used a pipe wrench on the round part of the sensor, also be prepaired for a coolent shower when u get it out.

 

Yes. And make sure you bleed the coolant system completely and properly when you put all that coolant back into the car.