over charging the battery on the right side dodge 2007 cummings
01-25-2016, 06:30 PM
#1
over charging the battery on the right side dodge 2007 cummings
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https://www.dieseltruckresource.com/forums/showthread.php?t=324136&goto=newpost
Here is the message that has just been posted:
***************
To understand the problem you need to understand how the charging system works.
The alternator senses the charged state of the batteries via a temperature sensor under the driver side battery, this tells the system how much voltage to apply in order to bring the battery's up to full charge.
The Alternator feeds the passenger side battery and from there the charge heads over to the drivers side via the battery crossover cable, thus tying the two batteries together.
The downside to this set up is if there is a dirty cable end, a bad cross over cable, a faulty temperature sensor under the drivers side battery or bad ground it will effectively cook the passenger side battery by overcharging in an attempt to charge the drivers side battery.
Common cures are simply finding the bad cable or connection and fixing it. The cables often look fine but can be corroded under the insulation out of view...the same can be found on the connections at the alternator, or the ground wires.
I would first check all cables and wires to be sure they are not corroded, then do the same for every connection or wire leaving the alternator. I would also check the temp sender under the drivers side battery if it is faulty it will also cause the system to over charge.
No short cuts here, you need to check and replace or clean as necessary to ensure you have good connections.
***************
https://www.dieseltruckresource.com/forums/showthread.php?t=324136&goto=newpost
Here is the message that has just been posted:
***************
To understand the problem you need to understand how the charging system works.
The alternator senses the charged state of the batteries via a temperature sensor under the driver side battery, this tells the system how much voltage to apply in order to bring the battery's up to full charge.
The Alternator feeds the passenger side battery and from there the charge heads over to the drivers side via the battery crossover cable, thus tying the two batteries together.
The downside to this set up is if there is a dirty cable end, a bad cross over cable, a faulty temperature sensor under the drivers side battery or bad ground it will effectively cook the passenger side battery by overcharging in an attempt to charge the drivers side battery.
Common cures are simply finding the bad cable or connection and fixing it. The cables often look fine but can be corroded under the insulation out of view...the same can be found on the connections at the alternator, or the ground wires.
I would first check all cables and wires to be sure they are not corroded, then do the same for every connection or wire leaving the alternator. I would also check the temp sender under the drivers side battery if it is faulty it will also cause the system to over charge.
No short cuts here, you need to check and replace or clean as necessary to ensure you have good connections.
***************
01-25-2016, 06:56 PM
#2
just got the word from the dealership or *********** as you say............................ the cables between the batteries from left to right is not making contact or is intermittent resulting in overcharging the battery on the right............................. so hears the deal I,am replacing all battery cables WITH OEM PARTS AT THE DEALER SO ITS under warranty.......................................... ........................................ and getting my old parts back from the dealership TO INSPECT
MYSELF .................................................. .................................................. .... but I am also backing up those OEM cables with new one's that I will make my self, in a sense a failsafe cable system grounded to a different location A $835.00 JOB FROM THE DEALER OOHHHH ****
MYSELF .................................................. .................................................. .... but I am also backing up those OEM cables with new one's that I will make my self, in a sense a failsafe cable system grounded to a different location A $835.00 JOB FROM THE DEALER OOHHHH ****
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