What Causes Low Oil Pressure in Sedans?

1 Answers
RyleeAnn
07/30/25 3:58am
Low oil pressure is generally caused by the following reasons: insufficient oil volume; excessively high engine temperature; malfunction of the oil bypass valve; clogged oil filter. Different causes require different solutions. The reasons for low oil pressure and their corresponding solutions include: 1. Insufficient engine oil storage: This leads to little or no oil in the lubrication system, resulting in low oil pressure. Solution: Add oil. 2. Dirty oil: Dirty or viscous oil prevents the oil pump from effectively sucking in and pumping out oil, causing low or no oil pressure. Solution: Change the oil. 3. Thin oil: High engine temperature may thin the oil, causing it to leak through the gaps in the engine's friction pairs and resulting in low oil pressure. Solution: Change the oil or repair the cooling system. 4. Oil pipe leakage: Damage to the oil pump or excessive wear of its components can reduce or completely stop the suction and pumping of oil, leading to low or no oil pressure. Solution: Repair.
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