What Causes a Car with Power to Fail to Start and Produce Abnormal Noises?
1 Answers
Insufficient battery voltage, fuel supply system malfunctions, and poor ignition system performance can all lead to a situation where the car has power but fails to start while producing abnormal noises. Insufficient Battery Voltage: Battery failure or excessive discharge can result in insufficient power, making it unable to drive the starter motor. Normally, the starting voltage of the battery should not be lower than 11.45V. If the voltage is below this threshold, the car will not start properly. You can use a multimeter to check the voltage between the battery terminals. If necessary, replace the battery or use jumper cables to start the car. Fuel Supply System Malfunction: Blockages in the low-pressure fuel line, loose or leaking pipes, air in the high-pressure fuel line, poor technical condition of the injectors, or incorrect injection timing can all cause fuel supply system malfunctions. In such cases, there will be insufficient combustible gas in the cylinders, preventing the car from starting. It is necessary to visit a repair facility to systematically check whether all components of the fuel supply system are functioning properly. Poor Ignition System Performance: Components such as the ignition coil and spark plugs in the ignition system are wear-prone parts and typically need to be replaced every 50,000 to 80,000 kilometers. If they are not replaced for a long time, the insufficient ignition energy will fail to completely ignite the combustible gas mixture in the cylinders, preventing the car from starting.
