Where is the fuel pump located in the BYD Song?
2 Answers
The fuel pump of the BYD Song is located inside the engine, installed within the oil pan. Here are the relevant details about the fuel pump: Function of the fuel pump: The fuel pump's role is to draw gasoline from the fuel tank and pressurize it through the pipelines and fuel filter into the float chamber of the carburetor. Gasoline serves to cool and lubricate the fuel pump. If fuel is not replenished promptly after the fuel warning light comes on, the cooling and lubrication effects will diminish, potentially causing damage. Impact of fuel quality on the fuel pump: Impurities in low-quality gasoline can clog the fuel supply system and wear out the fuel pump, leading to damage. Early failure of the fuel pump is often caused by the use of inferior fuel. Electric fuel pump: An electric fuel pump is not driven by the camshaft but operates through electromagnetic force repeatedly moving the pump diaphragm. This type of electric pump allows for flexible installation locations and helps prevent vapor lock.
I've been driving a BYD Song for several years, and that fuel pump is usually hidden inside the fuel tank, specifically under the rear seats or the floor of the trunk. The location is cleverly designed to directly draw fuel from the tank and deliver it to the engine, reducing pressure loss. I once replaced the pump myself, and it was quite troublesome—I had to lift the floor soundproofing pad first and then unscrew the mounting bolts, otherwise the pump would get stuck in the tank's top cover and wouldn't budge. The key step is to park the car, turn off the engine, and wait for the gasoline to cool down to avoid the risk of fire or explosion. Beginners really shouldn't take the risk of disassembling it randomly; it's safer to go to a repair shop. Regular maintenance, like checking for unusual pump noises, can prevent early failure and make your car more durable with less hassle. Although the location is hidden, disassembly and installation aren't too difficult as long as you have the right tools and are careful. Just don't skimp and use cheap, low-quality parts to avoid fuel line blockages and embarrassing mid-trip breakdowns.
