What Causes Hydraulic Oil Failure in an Engine?
3 Answers
It may be due to low oil pressure; it is recommended to visit a 4S shop for repairs. The details are as follows: 1. Car Engine: It is the device that provides power to the car, serving as the heart of the vehicle, determining its power, fuel efficiency, stability, and environmental friendliness. Depending on the power source, car engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrids, among others. 2. Working Principle: A four-stroke gasoline engine mixes air and gasoline in a certain proportion to form a good mixture, which is drawn into the cylinder during the intake stroke. The mixture is compressed, ignited, and burned to generate thermal energy. The high-temperature, high-pressure gas acts on the top of the piston, driving the piston to perform reciprocating linear motion, thereby outputting mechanical energy externally through the connecting rod and crankshaft flywheel mechanism. A four-stroke gasoline engine completes a working cycle during the intake stroke, compression stroke, power stroke, and exhaust stroke.
As someone who frequently works on car repairs, I've seen many cases of engine hydraulic oil problems. The most common cause is oil leakage, such as aging and cracking of the oil pan gasket or damage to the engine gasket, leading to a slow oil loss and increased friction due to low oil levels. Secondly, oil degradation is also common; prolonged failure to change the oil results in the additives losing effectiveness and the viscosity deteriorating, significantly reducing lubrication effectiveness, making it prone to contamination or oxidation, forming sludge that clogs the filter. Thirdly, oil pump failure or filter clogging can interrupt oil supply, causing a drop in oil pressure. Once the pressure is insufficient, engine bearings and pistons suffer. Fourthly, external contamination, such as water or metal shavings mixing into the engine oil, causes emulsification or part wear, especially in wet and cold environments. Lastly, driving habits have a significant impact; prolonged high-speed driving or heavy loads accelerate oil temperature rise, speeding up degradation. Simple prevention is recommended: check the dipstick monthly to maintain oil levels; adhere to changing the oil every 5,000 kilometers; using the correct viscosity grade of high-quality oil can save money and ensure safety.
I've been driving for twenty years and encountered hydraulic oil failures several times. The most troublesome cause is oil leakage, such as when engine seals or oil pipe joints loosen, allowing oil to seep out drop by drop. When the oil level drops to a certain point, the pump can't suck up oil, triggering a pressure warning. Dirty oil is also a problem. Once, I carelessly forgot to change the oil, and impurities accumulated, clogging the filter and causing poor oil supply. The engine noise became as loud as a tractor. Under extreme conditions, oil temperature rises quickly. If the viscosity is insufficient, protective functions fail, and components can easily overheat, get damaged, or even seize up. Afterward, I had to repair the entire engine, which was costly and time-consuming—a profound lesson. Now, I've learned my lesson: I insist on regularly checking oil levels and color to detect abnormalities early; I don't slack off on oil changes and follow the manual strictly; and before long trips, I warm up the vehicle to avoid sudden acceleration. These small habits can extend engine life and save a lot of hassle.
