问：汽车开始有点麻烦，但开始。有时开车时，灯光会变暗，否则我的收音机会切断然后重新开始。

Make sure you have good battery cables and battery terminals as well. Check for any fine cracks on the terminals, which can lead to a loose connection. A faulted sensor like acoolant sensor或者air temperature sensor可以向ECU提供虚假的读数，然后ECU将错误的空气燃料混合物发送到发动机，从而导致其努力或运行不佳。

Newer vehicles have avoltage regulatorthat is integral to the alternator assembly. If the voltage problem is affecting the whole car, this may be the problem. To have all these items checked, I recommend enlisting the help of a qualified mechanic that caninspect the hard start，查明所有故障，并执行可能需要的任何维修。