How to test if the car alternator has power

When a car battery does not provide enough power to start a car, people often assume that the battery is bad. Before buying a new battery that may not be necessary, check the alternator and see if adequate power is being provided. The alternator's job is to charge the battery - and if the alternator is not providing the voltage, then the battery simply can not keep the energy sent. If the alternator does not work properly, the battery may be fine, but you should fix the alternator if you want your car to not stop every two minutes. You can do a simple test to check the performance of your alternator. This item is offered by Valoare.com, second-hand car operator.

You will need to:

volt meter

Steps to follow:

one

First, perform a mock test to know exactly what and how to do the test. The car engine must be turned on to perform the test, but going through the steps with the engine off first will make the whole process easier.

two

Look for your alternator under the hood, which will have a pulley attached to it.

3

Verify that the belt is properly attached to the alternator; Do this while the engine is off. The tether strap must be tight enough. Check the condition of the belt for signs of breakage or severe cracking. If you see well, a new belt may be necessary. In order for the alternator to generate power to the battery, the alternator pulley must be able to turn without problems.

4

Check the condition of the belt for signs of breakage or severe cracking. In order for the alternator to generate power to the battery, the alternator belt must be able to turn without problems.

5

Set the reading of your volt meter to 20 V (volts).

6

Start the engine and take special care to keep hands, clothing and jewelry away from moving parts of the engine, such as fan blades, pulleys and belts.

7

Observe the alternator belt to make sure that the belt is turning and does not jump. If it is not, the belt is most likely damaged or too loose - any of these situations must be corrected before an appropriate test can be performed.