What is the rubber hose on the engine called?

[McCaleb]

The rubber hose on a car engine is called the crankcase forced ventilation tube. The purpose of crankcase forced ventilation is to maintain pressure balance within the engine's crankcase, preventing damage to sealing components due to excessive or insufficient pressure. When the engine is idling or operating at low speed with light load, the crankcase experiences significant negative pressure. This condition can cause a large amount of engine oil to enter the intake system along with blow-by gases and participate in combustion, leading to oil burning and severely affecting engine performance and emissions. Therefore, forced ventilation of the crankcase is necessary. When pressure inside the crankcase increases, ventilation occurs through the exhaust valve or oil-gas separator, keeping crankcase pressure fluctuations within a reasonable range. Effects of crankcase forced ventilation tube leakage: It removes the minimal exhaust gases and mixture that leak into the crankcase to prevent oil deterioration; reduces crankcase temperature and decreases piston downward resistance; If the ventilation system becomes clogged, it will increase oil consumption and shorten the oil change interval; Increased oil temperature reduces lubrication performance, increases leakage, and decreases engine power and fuel economy; Increases piston movement resistance, leading to higher fuel consumption.

[LaAlaina]

I've always been quite interested in car repairs. The rubber hoses on the engine, specifically the common coolant hoses that connect the radiator to the engine, are responsible for circulating coolant to prevent engine overheating. In the past, my old car experienced a coolant leak due to aged and cracked hoses, causing the temperature to skyrocket and the car to break down. Fortunately, I noticed it in time and didn't damage the engine. I recommend checking the softness of the hoses during maintenance; if they feel stiff or have cracks, it's time to replace them. It's also easy to do it yourself—buying a new hose costs just a few dozen bucks, and installation is straightforward. Additionally, there are other hoses like fuel hoses, which carry gasoline and are even more dangerous. If they age and leak, they can easily cause a fire hazard, so regular inspections are crucial. Don't underestimate these small components.

[StPatrick]

During maintenance, I noticed that the rubber hoses on the engine are mainly components of the cooling system, such as the upper or lower radiator hoses. They endure high temperatures and pressure, and prolonged use can lead to aging, causing coolant leaks or boost pressure issues. When replacing them, opt for high-quality, heat-resistant branded products to extend their lifespan. Additionally, vacuum hoses are used for brake boosters and affect braking performance. I once dealt with a car where a hose burst, nearly causing an accident. That’s why checking the engine bay for dryness and leaks before every drive has become a daily habit. Keeping these hoses in good condition not only saves on repair costs but also ensures driving safety.

[CarterMarie]

As a seasoned driver, I recall that the rubber hoses on the engine are often referred to as water hoses or fuel lines, with coolant hoses being the most common. Back in the day when car parts were scarce, replacements were hard to come by, but now it's much more convenient. When the hoses on my old car aged and started leaking, the car struggled to run and emitted white smoke. A new hose fixed the problem at a minimal cost. I recommend that car owners inspect their hoses every six months for cracks or softening to prevent breakdowns. Though often overlooked, hoses play a crucial role in engine longevity.