What is the function of the vehicle purge pump?
2 Answers
The function of the vehicle purge pump is: 1. To blow the fuel vapor from the carbon canister into the intake pipe. The evaporated fuel vapor from the vehicle is stored in the carbon canister. When the fuel vapor in the carbon canister accumulates to a certain level, the purge pump will blow the fuel vapor into the intake pipe, and eventually, these fuel vapors will re-enter the engine for combustion; 2. To control the concentration of the combustible mixture. When the concentration of the combustible mixture is low, the purge pump will activate, allowing the fuel vapor to enter the cylinder for combustion. The purge pump is located next to the carbon canister, and the vehicle's carbon canister is positioned between the engine and the fuel tank. If the vehicle experiences increased fuel consumption and a noticeable decrease in power, it is necessary to inspect both the carbon canister and the carbon canister purge pump.
The purge pump plays a crucial role in vehicles, primarily dealing with fuel vapor issues. I remember when I bought the car, the salesperson mentioned that this device sucks the fuel vapor escaping from the gas tank into the charcoal canister for storage, then blows it into the engine to be burned. This prevents fuel odors from spreading everywhere or polluting the air. After driving more, I've noticed that when it works well, the car's emissions are cleaner, and fuel consumption can be slightly reduced. If it fails, the most common symptoms are a strong gasoline smell after refueling or the engine light frequently staying on, which affects safety. So, I recommend not neglecting maintenance, as it's an eco-friendly component. Keeping it in good condition benefits both the car and the environment, and can also extend the part's lifespan.
