Okay so I am new to the forum and looking forward to getting advice from everyone here.Next let me state sorry for the long post but here we go. My issue is that my truck decided to die on me today. The truck is a 94 ram 1500 with a 5.2 backed with a nv3500 and np231. I rebuilt both the trans and tcase and installed them last night. I drove it today and it ran great with no issues until i shut it off, when I went to start it back up 10 minutes later it started up then died right away and now won't start again.
I checked for spark and had none then followed it back to the coil where I found I get 12 volts at the pigtail for a split second when the key is turned on. Went to the auto shut down relay and it seems like it isn't energizing but when I bench test the relay it works fine and get 65 ohms across the coil. I checked for voltage at pins 85 and 86 with the relay out, I get 12 volts in each with the positive probe of my voltmeter in the socket and the neg. on the neg. battery terminal. I have spent all day researching and have come down to my crank or cam sensor or my PCM died. I'm sure I missed something.
advice?

Thanks

 

Pulling the trans out and reinstalling can cause crank sensor problems. I think it would be odd that your PCM or cam sensor became faulty after tranny R&R.

 

Sounds like a ground issue.Go back under and check it out,ground straps...

 

Seconded on the crank sensor. Pull it, and have a look.

 

Okay so I ordered a new crank sensor, and can't find any broken wires or anything out of place. If my crank sensor went out wouldn't it throw a CEL? Also if the PCM doesn't receive a signal from the crank would it still energize to ASD relay or no?

 

So I must have broke the crank sensor installing the trans. Last time i checked it isn't supposed to be in 2 pieces...

 

Haha nice find! Although that sucks but least you know the reason

 

The two-piece crank sensors were an option on these trucks..... unfortunately, they didn't work out very well, so dodge discontinued them. Folks doing engine/trans swaps find them on a fairly regular basis though....

 

Yeah I think I might have hit it when putting the trans in, but got a new one going to put it in once it stops raining

 

i am wondering how he is getting power at pin 85 and 86 at the ads relay? you should only have power at one of those and then have power at pin 30. with no power at pin 30 you will never get power at pin 87 which powers everything.