To remove the sensor just take the bolts out that hold the tank to the fender. Then you can turn the sensor and it will come out without pulling the wire off. Once the sensor is out you will see how the plug comes off. Of course I am on my second sensor that only lasted a year. I am going to try the coolent mixture and see if that is my problem with the second sensor. I have also changed the level with the car cool and hot and still the light is on. Good luck.