How To Troubleshoot An Alternator On A Box Truck

Troubleshooting an alternator on a box truck can be a daunting task if you don’t know where to start. Here, we will guide you through the process step by step.

Firstly, if the battery light on your dashboard is on, this may indicate a problem with the alternator. The battery light is connected to the alternator and will light up if it’s not generating enough power. If your headlights and interior lights are dimmer than usual, this is another sign of an alternator issue.

Another way to troubleshoot the alternator is by checking the condition of the belts. If they are loose, frayed or broken, the alternator won’t be able to generate power. You can also use a voltmeter to test the alternator’s output. Lastly, a failing alternator can cause the battery to drain quickly. If you notice that your battery is constantly low, even after being charged, it may be due to a faulty alternator.