Why does the car make a chugging sound several times before starting when igniting?

[DelGia]

The reasons why a car makes a chugging sound several times before starting when igniting are as follows: 1. Throttle failure: If the throttle malfunctions, it can also cause difficulty in ignition and produce a chugging sound. The throttle can be cleaned, as it generally requires cleaning and maintenance after reaching a certain mileage. 2. Spark plug failure: Issues such as excessive spark plug gap, reaching the service limit, or carbon buildup on the spark plug can also lead to difficulty in ignition and a chugging sound. The spark plugs need to be replaced promptly. 3. Fuel injector failure: Problems like clogged fuel injectors resulting in poor atomization or carbon buildup are also related. You can first try cleaning the fuel injectors; if that doesn't work, they will need to be replaced. 4. Fuel pump failure: You can determine this based on the response after power is applied. If you can hear the fuel pump running, it is not the issue. Conversely, if there is no sound, it indicates a problem with the fuel pump, which needs to be replaced promptly.