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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

Power problem on 96 ram3500 5.9 cummins

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Hello to all. I am new to the site. I was looking on the web for a issue I have and came across this site. There's a lot of knowledge here and hopefully it will help me out and learn me some stuff. I have a 96 ram3500 5.9 cummins. I replaced the front cover gasket, had injector pump rebuilt. I rebuilt the transmission. I got her all back togather and runs great. Except my altenators not charging and I have no power to transmission. When I check with a volt meter at the 2 small wires on altenator they get 12.6 volts when keys turned on and within 2-3 seconds it counts voltage down to like 0.6 and stays there. Never changes running or not only as soon as keys on for couple seconds. Same thing at power wires going to transmission. It is the exact same thing. I have no codes, no blown fuses, both batteries are new and fully charged. I can't find any grounds off or wires pinched or anything to make this happen. If anyone can help please please do so. It will be greatly appreciated.

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Voltage regulator? My 02 is thru the PCM but I dont know about the 96.

  • Owner

PCM controlled voltage regulator started in 1993. Last year of the 1st Gen...

PCM going to need to be repaired.

Edited by Mopar1973Man

Transmission and Charging is all you're missing?

Try swapping the ASD relay in the Power Distribution Center (The black box next to the drivers side battery).

Also check #4 fuse in the PDC for power on both sides while the issue is occurring.

  • Author

Thanks for the replies. I took pcm to have it tested and should know somthing today. When I get it back I will swap the asd relay if the pcm comes back good . I will let  y'all know what I find out. Thanks   Again

  • Author

I received a phone call informing me yesterday that the pcm is for sure the problem. Thanks to all of u I can fix this nightmare. I have found couple on line for sale. Were do y'all recommend for me to but a pcm? Thanks again

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Welcome To Mopar1973Man.Com LLC

We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.