Author |
Message |
Lovedabueller
| Posted on Sunday, September 27, 2009 - 06:56 pm: |
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I have a bud, who owns a durango. he has replaced the battery and the Alternator. and after some time of idleing the voltage meter drops and the truck dies. any suggestions. keith |
Barker
| Posted on Sunday, September 27, 2009 - 07:00 pm: |
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Voltage Regulator/Powertrain Control Module? All Dodge Durango SUVs come with a Powertrain Control Module that contains the voltage regulator. If any problems develop with the voltage regulator, it cannot be replace by itself. The entire Powertrain module must be replaced. |
Lovedabueller
| Posted on Sunday, September 27, 2009 - 07:53 pm: |
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is there a way to check it before you buy the $ 400+ pcm |
Barker
| Posted on Sunday, September 27, 2009 - 09:45 pm: |
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does it display a check engine light? |
Lovedabueller
| Posted on Sunday, September 27, 2009 - 09:55 pm: |
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THis is the thing, he had a buddy install a hydrogen assist kit, when he did this he tapped into the white wire with a blue or green stripe coming off the back of the alternator as a switchable power source. this is what the truck does. it will start fine. run and idle great. the check engine light is on and it displays the code p1682 this is the low voltage output code. after like two minutes the voltage meter in the truck will fall all the way down. and the truck still runs. what i think is that when the dude tapped into the wire from the alternator(i dont know exactly what it does but it goes to the PCM) i think he fried the ECM and thats why its throwing the code. just my .02 |
Ratbuell
| Posted on Monday, September 28, 2009 - 08:53 am: |
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If he tapped into the sense lead from the alternator to the PCM, the kit could be pulling enough juice off that wire to freak out the PCM. Pull that wire and tap it somewhere else. There should (depending on year) be a switched cigarette lighter outlet / power port somewhere in the dash. Our Ram ('05) has both types - one switched with ignition, one battery-hot. Use THAT circuit to run stuff, not something that feeds the PCM. At the very least, return the wiring to stock and see what happens then. |
Mnbueller
| Posted on Monday, September 28, 2009 - 08:54 am: |
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Have you tried just removing this tapped in wire, to see if that fixes it? |
Buellinachinashop
| Posted on Monday, September 28, 2009 - 09:23 am: |
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"The entire Powertrain module must be replaced." +1. I rolled a Dakota into a river and kept having the same issues after the truck was "fixed". The tech didn't do this. |
Lovedabueller
| Posted on Monday, September 28, 2009 - 11:35 am: |
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IT is all back to stock. sorry i forgot to mention that. and know it is doing the above symptoms. keith |
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