01 Ram 1500 4X4 5.9 electrical issue

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01 Ram 1500 4X4 5.9 electrical issue

Post by 70chall440 on Sat Dec 26, 2015 10:37 pm

As the thread title says I have 01 Ram 1500 5.9 4X4 that has "some" type of electrical issue. This issue is this, some times for no apparent reason it seems that the battery dies (no electrical at all). At first I thought it was the battery and would jump it, it would work and it would be ok for awhile and then it would do it again. I changed the battery thinking I fixed the problem, but then it did it again. I checked all of the fuses, connections etc and could not find anything. Eventually I put a battery Brain that cuts off the battery if there the battery gets below a level it isolates the battery (or you can turn it off with a remote as a safety device). The other day I started the truck and began driving when I got a dash message "check gauges" and noticed the volt meter was pegged to the right (18V). I returned home and turned off the truck, when I tried to restart the truck there was nothing, I pushed the button on the remote and then it was ok again. I cannot figure it out; I am now thinking that the alternator is the culprit but it seems to work. Any suggestions are appreciated.

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Re: 01 Ram 1500 4X4 5.9 electrical issue

Post by 73rr on Tue Dec 29, 2015 7:12 pm

....you do manage to come up with some real brain-teasers....
Have you tried the OBD?
If the battery drains then there is obviously a current draw, just gotta find it.
I'm leaning toward a computer being wanky....or some issue with the remote start.
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Re: 01 Ram 1500 4X4 5.9 electrical issue

Post by 70chall440 on Tue Dec 29, 2015 7:20 pm

Got to try and keep you guys thinking... Smile

I agree that it is a drain, I have looked at all of the connections I can find but haven't seen anything, but there have been times when I drove the truck for a while, turned it off and then it was dead. So I don't not think the battery is completely draining, it is more like it gets below a point and the PCM senses it being too low so doesn't let power go anywhere. If the battery was draining that fast, there would be sparks, smoke and probably fire. It is something weird.

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Re: 01 Ram 1500 4X4 5.9 electrical issue

Post by 73rr on Wed Dec 30, 2015 1:55 pm

I have had some less-than-fun times on 'later' models when there is a bad ground somewhere...the computer(s) do not like sketchy connections and sometimes the connections 'look' ok but just not hooking up.
I'd be staring at the remote start and everything it connects to.
Just me, but I won't buy any vehicle with a remote start unless it was installed at the factory because you don't know who did the install and at what level of competence...now, if you installed the remote then the story changes.
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Re: 01 Ram 1500 4X4 5.9 electrical issue

Post by 70chall440 on Wed Dec 30, 2015 3:29 pm

I do not have a remote start, what I do have is a "battery brain" which senses a draw from the battery and when the battery gets to something like 11.8V it disconnects the battery from the rest of the vehicle, thus leaving you enough power to start the vehicle. It comes with a small remote/fob that has 2 buttons; one allows you to disconnect the battery from the system as a anti theft measure and the other reconnects it. So essentially something is drawing the battery down sporadically. It happens about once every few months and the speed at which it happens in the part that is confusing; ie I drive the vehicle no issue, turn it off, go to restart it and nothing. An draw of that magnitude would result in a fire, a lot of smoke at least. So now what I am thinking is that the alternator isn't charging correctly or charging sporadically and the battery is living on the edge of having enough or not. Sounds weird but I cannot get my head around anything else.

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Re: 01 Ram 1500 4X4 5.9 electrical issue

Post by 73rr on Thu Dec 31, 2015 2:25 pm

...sorry, I misunderstood "pushed the button on the remote"...
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Re: 01 Ram 1500 4X4 5.9 electrical issue

Post by 70chall440 on Thu Dec 31, 2015 3:10 pm

Very Happy No worries. Something is definitely going on here, because as the truck is idling you can feel it "miss", almost like the power is being cut for a split second. It feels exactly like a miss, and there have been a few times when it missed "hard" where the tach dropped like it was dying, but then it came right back. This doesn't happen when under power/load, but definitely does while idling. I have checked for codes and such but there isn't anything there. Perhaps these 2 issues are separate but seems like they are connected.

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