I'm trying to remove a knock sensor on a 2008 green hatchback accent 2 door. I can't get the 12 mm bolt off that holds the sensor thats bolted onto the motor underneath the car. I put the car on rhino ramps in my yard and crawled underneath. Does anyone know why I cannot turn the 12 mm bolt? I am turning it counter clockwise, as if I were looking at a clock, i'm going backwards, and I can't turn the bolt, its like stuck. Aren't I turning it the right direction? Do I need some spray product to loosen it up? Can someone please explain what i'm doing wrong. I am tired of letting people work on my car, they just don't care about my car like I feel like they should.