Fuel lift pumps are typically located near the fuel tank, and are powered by the vehicle's electrical system. They use a diaphragm or piston to create suction, which draws fuel from the tank and pumps it through the fuel line.
The fuel lift pump is responsible for creating a positive pressure in the fuel line, which is necessary for the fuel injector or carburetor to function properly. Without a properly functioning fuel lift pump, the engine would not be able to receive the fuel it needs to run.
Fuel lift pumps can fail for a variety of reasons, including:
* Electrical failure: The fuel lift pump may not receive power from the vehicle's electrical system, which can cause it to stop working.
* Mechanical failure: The fuel lift pump may experience a mechanical failure, such as a broken diaphragm or piston, which can prevent it from creating suction.
* Clogged fuel line: The fuel line may become clogged with dirt or debris, which can restrict the flow of fuel and cause the fuel lift pump to fail.
If your vehicle is experiencing a fuel delivery problem, it is possible that the fuel lift pump is at fault. A qualified mechanic can diagnose the problem and replace the fuel lift pump if necessary.
