removing knock sensor

[agcneo]

i found the location of my knock sensor that i have to replace on my 97 blazer, i can get my hand barely on it, but i cant figure out how to remove the sensor plug on it, anyone know how to get this off??

[MT-2500]

The one back of head or under the head?
If it is a big fat round plug.
Try squeeze and wiggle and plull.
And if all else fails clip the wire at least 3-4 inches from it and remove sensor than get it off.
And if it is on under side of engine it may be screwed into the coolant drain hole so be pepared for a bath when you remove the sensor.
MT