What can you do with a dual alternator in a truck?

What can you do with a dual alternator in a truck?

There are some applications where the truck spends a lot of time at idle with lots of electrical load. Things like tow trucks, ambulances, farm trucks that may be powering fuel transfer pumps, construction trucks that have an inverter to run saws, RVs that are charging their batteries and running lots of accessories and similar things.

How to know if your alternator is charging or not?

This is the large charge wire that electricity flows from the Gen/Alt to the 140amp fuse in the PDC and onto the battery. This is the large wire on the large stud on your Gen/Alt and you should have battery voltage or alternator output voltage on this stud. Check the fuse if you don’t, or wires associated with that circuit. 2.

What kind of voltage does an alternator have?

– The dark blue wire is the voltage supply to the Generator fields. Meaning this is a positive wire and should have 12V on a meter or light a test light like this when the test light is hooked to battery negative as in the picture.

How to test the voltage of a Dodge alternator?

There should be a connection between these two pins. Next test the Pin 10 of the White C2 connector to the GREEN wire pin at the alternator plug. There should be a connection between these two pins.

Where can I go to test my alternator and charging system?

If any testing or replacement of your alternator or charging system becomes too difficult of a job, consider visiting one of our Preferred Repair Shops in your area can help you diagnose and repair any faults in the charging system.

What does it mean when your alternator is not charging?

If the voltage is still only 12.4-12.6 once the engine is running, then the charging system is not functioning. In most cases and in most vehicles, you will have a battery light illuminated that indicates that the alternator is not charging.

What should voltage be between battery and alternator?

Very low differences in voltage between the battery and alternator should also be suspect – say – 12.8 volts at the battery. The first course of action is to check the wiring carefully that runs between the alternator’s main power wire and the battery.

Can You bench test an alternator at AutoZone?

If everything appears fine, the alternator should be removed and bench tested, which can be done for free at AutoZone. What if the Alternator Tests Fine? Electricity is frustrating, or at least it can be.