How To Test The Battery Charging System On A Ford Focus Car

Here Is how to test the charging system on a Ford focus car. If the alternator on your car isn’t doing a good job of charging your battery, or if the battery light on your dashboard turns on, this is how to test the alternator on your Ford focus car. Testing the alternator on the car is easy, and on this Ford focus, we tested the alternator by hooking up a voltmeter to it well the engine was off, and looking for voltage of a little more than 12 V, and then turning on the engine, and looking for voltage between 13 1/2 and 14.6 volts. You also Should check the voltage at the battery well the engine is idling with the air-conditioning and lights on. That should lower the number a little bit, but when you wrap up the engine, it should be back up close to 14.6 volts. If you see low readings, then it’s possible your alternator or your regulator are bad, or going bad. this video shows you how to test the charging system on a Ford focus car.

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