* Engine cranks, but won't start. If the fuel pump isn't working, the engine won't get the fuel it needs to start. This is the most common sign of a faulty fuel pump.
* Loss of power. If the fuel pump is failing, it may not be able to deliver enough fuel to the engine, causing a loss of power.
* Engine stumbling or jerking. This can be a sign that the fuel pump is providing an uneven supply of fuel to the engine.
* Check engine light is on. If the check engine light is on, it's possible that the fuel pump is the cause. The computer may have detected a problem with the fuel pump or its electrical circuit.
If you're experiencing any of these symptoms, it's important to take your Daewoo Lanos to a qualified technician to have the fuel pump checked and repaired if necessary.