I posted about this problem a year or two ago with no solution, so it sat unrepaired. Now i am back for another repair.
I have added a 100 circuit breaker on the two black wires coming from the Alternator so I can easily switch it in, or out of the circuit.
With the alternator switched OFF, the car starts and runs normally--except that it is not charging the battery
When the alternator is in the circuit several things happen----the windshield wipers pulse on and off, some lights flash on and off and the engine surges. My guess is that the engine surging is due to the alternator load turning off and on.
It has a 2G Ford Alternator with the regulator built into the alternator. There are 2 heavy wires that carry the current back to the battery. There is also an "exciter" wire, small gauge that is to send 12V to the Alternator but with the engine off and the key on, I see no voltage on this wire. I believe it should be showing 12V when the key is on to tell the Alternator to provide current to recharge the battery.
I do not want to put a 12v jumper onto this exciter wire because i am afraid it will backfeed somewhere I don't want it to go. I think I should cut the exciter wire and then jump 12 V to the Alternator side of the wire.
Does that make sense?
Then, if that jumper makes the Alternator function, I can find a switched 12X lead from the fuse box and wire the exciter that way.
Again, am I thinking correctly?
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