Hey All...I have an Alternator Kicking my ***....

Please read my post in this Thread.....

https://www.dieselbombers.com/1st-ge...no-charge.html

I use this Truck alot still.....I am at a loss on why I am not getting it to Excite the Alternator....?

Any input is appreciated....

Thanks, John.

 

I had a similar issue and ended up having to wire in an independant voltage regulator as ours are built in to the ECM. I was able to find the wiring diagram on this site, just not good enough with the computer to tell you how to get there. Good luck. Also the external voltage regulator was $25 and the pig tail was $14 or you can get one out of a junk yard for pennies.

 

I also had to put the external regulator on our 92 and haven't had any trouble with it since. It is a fairly easy job. The regulator you would get is the chrysler external electronic regulator and connector which are available at any auto parts or alternator shop. Disconnect the 2 wires to the brushes and tape them up. Find a wire that has power when the key is on and hook one wire to one of the brushes (it doesn't matter which one) The regulator connector I have has a blue wire and a green one. The connector only has 2 wires but it is long like it should have 3. The one that would be the middle is the blue one and hooks to power with the key on and the end one which is green on my connector hooks to the other brush. Mount the regulator to the body somewhere and make sure the mounting screw makes a good ground. That is all there is to it.

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I should have read your other post before I spoke. The chrysler alternators have power feed to one brush and the regulator is a variable ground on the other brush. If you are getting power to one brush and get nothing to the batteries when you ground the other brush the first thing to check for is a blown fusable link wire between the output lead and the battery somewhere in the harness. To confirm that you should be reading voltage on the output of the alternator with the engine off. If there is no voltage at the output there is a harness problem.

 

So I had to walk away from the truck for a few days and get other Work done....

Yesterday afternoon, I went back in and Looked things over....

First thing I found was my driverside Door Wiring brittle and broken in the door jam

I rewired the whole mess.....That was an unplesant chore...

Then I went out under the hood and re-checked all my wiring for the Alternator and External Regulator.....Checked all the fusible links...

Everything checked out good.....??? I was still not getting the regulator to do its job right...

I went and Bought another regulator.....

So when I installed it this is the way I made sure it went.....

I ran power to the Alternator off the main Harness, as it checked out good and ok...
I ran a key on hot wire to the top post on the regulator....
I ran the two regulator wires to the Field wires on the Alternator...
I took off the original 2 field wires in the harness to the Alternator and taped them up out of harms way...
I built a ground wire and ran it from the ground on the Alternator, to the chassis on the regulator which is now bolted to the side of the fender close to the Air box

Fired the truck back up....

Bam...I now have Power and the Alternator is Charging as it should be.....

Thanks to everyone who gave input ......

John.