What Causes Insufficient Engine Oil Pressure?

1 Answers
AlexanderLee
07/25/25 12:41am
Insufficient engine oil pressure is caused by dirty or thickened oil due to prolonged use, or excessive wear of components. Below is an introduction to the causes and solutions for insufficient engine oil pressure: 1. Dirty or thickened oil due to prolonged use prevents the oil pump from smoothly drawing in and pumping out oil, resulting in low oil pressure. Solution: Clean or replace the oil pump, then change the engine oil with new oil. After replacement, ensure oil quality and strictly adhere to maintenance standards. 2. Excessive wear of components, such as excessive clearance between the crankshaft and bearings, or malfunction of the pressure relief valve due to weak springs or damaged steel balls, can reduce the amount of oil drawn in and pumped out, leading to low or no oil pressure. Solution: Conduct a thorough inspection, as it cannot be accurately judged from appearance alone.
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