Nissan Repair: knock sensor, knock sensor

Question
How can you replace the knock sensor. There's no room to place any tool or wrench. Can it be done from the top of engine or below. I tried but can not get to it.

Answer
Hi David -

The access differs from model to model. Since I do not have the year and make of your vehicle, it is difficult to guide you, however, I know a regular wrench will not do the trick. you will need a deep socket, or I believe they have a special socket for removal. Sometimes other items will have to be removed to access the sensor to make it easier.

Hope this helps -
aloha
calvin