Why does my oil pressure go to 0 when I stop?
Why does my oil pressure go to 0 when I stop? The oil pressure gauge will usually drop when a few things could be happening. Either the motor is in fact low on oil, the oil pump could be failing or the oil pressure sending unit is not working properly and may be producing a faulty reading. Be sure the oil level reaches the "full" mark. What should I do if my oil pressure drops? If the vehicle starts making a tapping or clunking noise when the oil pressure drops ...TURN OFF THE ENGINE...!! You probably don't have any oil...