What are the causes and hazards of low engine oil pressure?
2 Answers
The causes of low engine oil pressure are insufficient oil and abnormal components. Its hazards include abnormal noise and component damage. Below is a partial introduction about low engine oil pressure: 1. Causes: Severe oil shortage can lead to low oil pressure. It is necessary to check for external component leaks in the engine. The oil pressure switch, engine wiring harness, and instrument cluster should also be inspected for normal operation. 2. Hazards: If the vehicle continues to operate with low pressure, it will exacerbate abnormal wear of internal engine components, leading to abnormal noise and component damage. In more severe cases, it may cause the internal bearing shells to seize.
I've been driving for decades, and low oil pressure is all too common. The main reasons are usually insufficient oil level, where the dipstick shows below the minimum line due to unnoticed oil leaks or burning oil; or a faulty oil pump that fails to circulate oil, often due to internal gear wear or aging; a clogged oil filter blocking the oil passage; or oil that's too thin or contaminated, reducing lubrication effectiveness. The consequences can be severe—engine components like the crankshaft and camshaft suffer from inadequate lubrication, leading to friction, overheating, and accelerated wear. In the worst case, the engine may overheat, seize the pistons, and require a costly overhaul or complete replacement, costing thousands. Once, while helping a neighbor fix their car, the oil pressure light was ignored, resulting in engine bearing failure and repair costs exceeding ten thousand. That's why it's crucial to regularly check the oil condition, inspect the oil level every three months, and change the oil during maintenance to ensure safety and save money.
