This means that the alternator and the battery would be on one side of the switch, and the circuits would be on the other side. If this is a race car, the wire or cable should be run all the way to the battery side of the disconnect switch. To shut the car off, the ignition system should be switched to stop the car. DO I have to run a charge wire from the alternator all the way back to the battery? Or can I hook it up to the starter solenoid?Ĭoncerned, the alternator can be connected to the battery terminal on the starter solenoid. My battery is located at the rear of the car. When the alternator comes to a complete stop, this same circuitry turns the alternator off. As the alternator starts to spin, this circuitryĬonnects the internal voltage regulator to the battery and turns the alternator on. The one wire regulator is a self-exciting regulator, meaning that it has sensing circuitry for alternator rotation. Simply run a charge wire from the battery terminal on the alternator to the positive terminal on the battery (or battery side of the disconnect switch).
DO I have to run a charge wire from the alternator all the way back to the battery? Or can I hook it up to the starter solenoid?
Alternators don’t always go bad in the exact same way.Ī bad alternator can leave your Subaru Forester without power and unable to move.
#POWERSELECT ALTERNATOR HOW TO#
We’ll cover the symptoms of when an alternator goes bad, and how to diagnose a bad one (which is really pretty easy). The alternator’s job in your Forester is to provide electricity as it is running. The battery stores enough voltage to be able to start the engine without the assistance of an alternator. It’s worth noting that a bad serpentine belt can cause the alternator to stop charging effectively. If it’s been slipping a lot it’ll have a glossy shine to it. You’ll have probably heard it squeal when you start the engine. Symptoms of a Bad Alternator: Subaru Forester Most of the time, when replacing an alternator, the alternator itself is relatively affordable. Here are the most common symptoms of a bad alternator in a Subaru Forester: A typical alternator Battery Light It’s the labor that makes the job expensive. The battery light is designed to tell you that there is not enough voltage to properly charge the battery, or that the battery itself is not holding the proper voltage. In rare occasions the service engine soon light may light up. Also, some vehicles have an “alt” light that specifically tells you there is a problem with the charging system, and not the battery itself. Outside of the battery warning light, a dead battery is the most common symptom of a bad alternator. As the alternator can no longer supply your Forester with an adequate power supply, it will begin to feed off of the reserve in the battery.
Once this battery reserve hits a certain level, the vehicle will begin to run erratically and will no longer start when the key is turned. Often, the battery light will come on, the alternator gets replaced, and then a few days later the vehicle dies.
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