How To Test Alternator If Car Won T Start. There are a few ways to test this to verify a problem. This happens to be exactly what they.
Here I show you how to diagnose a car that is not starting because of a bad alternator or a bad fuse. If the battery is working properly and nothing is wrong with it then its. While it is running unplug the positive connection from the battery.
While your car is running disconnect the positive battery cable.
If youre tempted to test an alternator by disconnecting the negative battery cable dont do it. Put the multimeters black cable to the negative terminal and the red cable to the positive terminal. Jump starting your car or truck does not turn over the engine at all. There are a few ways to test this to verify a problem.
