What are the reasons for the engine oil warning light to come on?

1 Answers
MacSamuel
07/28/25 6:31pm
Here are the reasons for the engine oil warning light to come on: 1. The engine temperature is too high: When the vehicle's engine is at a high temperature, it is very easy for the engine oil to become thin. The thinned oil will leak in large quantities from the matching gaps, leading to a drop in oil pressure, thus triggering the engine oil warning light. 2. Insufficient engine oil volume: Some car owners do not pay attention to the engine oil for a long time after adding it once, resulting in a gradual decrease in the oil volume in the oil pump. Insufficient oil volume in the oil pump will cause a drop in oil pressure, leading to the engine oil warning light coming on. 3. The matching gap between the crankshaft and the big and small bearings: Another reason for the engine oil warning light to come on is when the gap between the crankshaft and the big and small bearings is too tight, it will increase the oil pressure, while if it is too loose, it will cause the oil pressure to drop. 4. Damage to the oil pump: When the components of the oil pump are damaged or there are issues such as wear and tear or excessive gaps due to assembly problems, it will cause the oil pump to not pump oil or pump insufficient oil. This is the fourth reason for the engine oil warning light to come on.
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