Inaccurate oil level indication: The obvious manifestation is that the oil level indicator is inaccurate and the oil level is abnormal. For example, the oil gauge shows that the oil level is too low or the oil level is too high, which is completely inconsistent with the actual oil level.
2. The oil level warning light comes on: Sometimes, a damaged oil level sensor can cause the oil level warning light to come on, even though there is still enough oil in the tank.