What Are the Causes and Diagnostic Methods for a Car That Won't Start?
2 Answers
The causes of a car not starting are: 1. The battery has reached the end of its service life; 2. Electrical or electronic faults: including blown fuses, open circuits in the high-voltage coil, leakage in the distributor rotor, and damaged spark plugs. The diagnostic methods for a car not starting are: You need to press the horn to determine whether the battery has power. If the horn sounds, it means the battery has power, and the cause of the car not starting is due to other factors. If the horn does not sound, it means the battery is dead or has reached the end of its service life. The owner can call the after-sales service personnel of a 4S shop for emergency repairs. The after-sales personnel will come to the site to inspect or replace the battery. Alternatively, you can call the insurance company's customer service, inform them that the car has no power and needs rescue, and the customer service will arrange to tow the car directly to the nearest 4S shop.
Last time my old car suddenly wouldn't start, and it took me a long time to figure out why. Common reasons include insufficient battery power, loose or corroded connections, or a faulty starter. If you hear a clicking sound or no response when trying to start the car, you should check the battery voltage with a multimeter or ask someone for a jump start. Secondly, issues with the fuel system, such as a non-working fuel pump or a clogged filter, can also prevent the car from starting. Make sure the fuel gauge shows a normal level and try pressing the accelerator a few times. Problems with the ignition system, like excessive carbon buildup on the spark plugs, can also cause starting issues. You'll need to remove them to check if the electrodes are burnt out. The most frustrating issue during diagnosis is electrical problems, such as a faulty relay or a blown fuse. You'll need to open the hood and check the fuse box. If you can't find the problem, it's best not to tamper with it and call a professional mechanic for a safer inspection. Develop small habits before driving: pay attention to whether the dashboard lights are on, regularly replace the battery and maintain the starter, especially in winter when low temperatures make the car more prone to breakdowns.
