Having a noise sounding like grinding or scratching. The car only makes the noise when after startup i drive it and at a certain speed it gives this noise once. After that nothing more until i stop the car and turn it of and back on again and start drivning. Dosnt happen if i just stop the car. Need to turn of and on again. Happens every time and has been for a year now. Dosnt matte which gear im in. Any ideas?