Ok heres the problem the truck won't charge. I have re set the crank sensor at 50 thousandths re placed the alternator. And I have been getting a run around if it has a voltage regulator if it does then I will replace it it is a 93 3/4 ton LE diesel 5.9 if any answers it would help me out a lot

 

The Voltage is regulated by the computer. Could be a bad ASD Relay, there are a couple relays on the fender, swap the front (ASD) and rear (A/C) relays.

There is more info in the sticky.
https://www.dieseltruckresource.com/...82&postcount=7

Here is a work around if the PCM isn't doing it's job.
http://www.cumminsforum.com/forum/89...w-89-02-a.html

 

Fill out your signature so we know what you have.

 

But he does state it's a 93 250

 

Still will help us later to help him better if he fills it out.

 

As was said, try swapping relays. Does the A/C, OD, and cruise work, if equipped? If all that stuff is out you still have crank sensor issues and you need to look over the worrying very closely, especially at the front of the head. You can also sneak the sensor gap a little tighter.

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No the a/c doesn't work nor does the cruise control and I have found the two relays and thought those my have something to do with it

 

is it an automatic? Does the overdrive work?

 

My bets the crank sensor is bad if your ac, and overdrive don't work, that is a really common sign that its your crank sensor, also make sure you check your asd relay, it cheap and alot of the time that's the problem

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No it's a 5 speed and when I get off work I will mess with the asd relay but if I have to I will get a crank sensor but I don't want to be a drug store mechanic and just start buying parts I would like to narrow this wiring night mare down and fix it

 

You can switch the starter relay and asd relay on the left fender they are the same, that will tell you if its the asd relay or not, that's what was wrong with mine

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Ok cool I will switch them out and see what it does d

 

If that's it the relay is about 10 bucks from car quest

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Ok well I will update you guys on it