battry drain issue
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Tuned
Joined: Oct 2006
Posts: 412
Likes: 13
From: Great northwest
battry drain issue
Ok,
I am so tired of this. I have been working on this thing for the last month to get ready for vacation.
Now a week or so ago the truck was dead one morning. I had been working on it so I though I had left a light on or something...
Then it went dead again. I changed the voltage regulator. It went dead again, but the VR was warm. So I changed it again... And the wires checked ok.
When I changed it the last time I threw a new alternator on the truck. Now it is dead again. and the alt. is warm.
I have something going on here. How do I fix it. If I hold a wrench to the front of the alt, it pulls it to the pulley, If I unplug the 2 wires on the top, it lets go.
Sounds like a VR, but it has to be something else. What is the next step? Is the harness from the VR to the ALT something I can buy?
I tested voltage at the regulator.
There is power all of the time at the F and the A.
The power comes on to the I when the key is turned. Did not get anything from the S.
Any ideas?
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I am so tired of this. I have been working on this thing for the last month to get ready for vacation.
Now a week or so ago the truck was dead one morning. I had been working on it so I though I had left a light on or something...
Then it went dead again. I changed the voltage regulator. It went dead again, but the VR was warm. So I changed it again... And the wires checked ok.
When I changed it the last time I threw a new alternator on the truck. Now it is dead again. and the alt. is warm.
I have something going on here. How do I fix it. If I hold a wrench to the front of the alt, it pulls it to the pulley, If I unplug the 2 wires on the top, it lets go.
Sounds like a VR, but it has to be something else. What is the next step? Is the harness from the VR to the ALT something I can buy?
I tested voltage at the regulator.
There is power all of the time at the F and the A.
The power comes on to the I when the key is turned. Did not get anything from the S.
Any ideas?
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Elder User
Joined: Feb 2007
Posts: 829
Likes: 1
From: Goose Creek SC
Try pulling fuses one at a time and checking for the drain.......Might at least eliminate it to one circuit for troubleshooting.......if it's none of them it has to be in the battery to alternator circuit......Ignition switch itself maybe......??
I hate electrical problems!.........GOOD LUCK
I hate electrical problems!.........GOOD LUCK
Elder User
Joined: Feb 2007
Posts: 707
Likes: 1
From: Mulege south Baja ca. Mx.
yes if your field is energized all the time that will burn out the reg. and make the battery go dead so you have zeroed it down to that now we need to find out why your field is hot all the time. I'm going to check some books and get back to you.
I need to know what truck, engine, year and trains.
I need to know what truck, engine, year and trains.
Elder User
Joined: Feb 2007
Posts: 707
Likes: 1
From: Mulege south Baja ca. Mx.
it looks by the diagrams I have that for that wire to be energized with the key off there must be either a bad Ignition switch or another wire crossed and making contact with it or the electricity could be coming back through the alternator. remove the field wire frome the alternator and see if it is still hot.
with the correct info for your truck I can get you some better info hopefully
with the correct info for your truck I can get you some better info hopefully
