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mattb
Dodge Dakota
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11/22/2010
19:52:06
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 Subject: 04 4.7 liter voltmeter overcharge
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Message:
my 04 dakota has 105xxx km on it. the alternator went so i had a rebuilt one put on it 3 months ago. its just started and overcharging on the voltmeter on the dash. replaced the battery and no change.. went to canadian tire.. they replaced the battery on warrenty saying it was no good. the guage showed a normal reading for about the 10 min drive home. started it up in the morning and the same issue. its running about 14.7 at the high point?? anybody have any ideas what is happening here?? thanks
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daddio
Dodge Dakota
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11/22/2010
20:19:10
|  RE: 04 4.7 liter voltmeter overcharge
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If the alternator and battery are good and all connections are clean and tight it could be the voltage regulator going out. And the regylator is built into the PCM. You may want to check for codes.
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mattb
Dodge Dakota
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11/22/2010
21:01:20
| RE: 04 4.7 liter voltmeter overcharge
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thanks!! any idea on how to check for codes? also i live in calgary and it's -28c outside. i just read about a battery temp. sensor located under the batter housing. after the battery was changed out by the auto tech it was in the warm shop and a warm battery. i was wondering if the cold weather after sitting for 10 hours in the frigid temp is screwing with the sensor some how making it over charge the battery?
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mattb
Dodge Dakota
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11/22/2010
21:06:14
| RE: 04 4.7 liter voltmeter overcharge
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Message:
did the key trick to check for codes and came up with p-done so i assume there are no codes
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daddio
Dodge Dakota
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11/23/2010
08:08:27
| RE: 04 4.7 liter voltmeter overcharge
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Message:
You are correct. Pdone means no stored codes. -28C is pretty harsh, at least by my standards. Maybe a problem with the new battery?
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Salesman
Dodge Dakota
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11/23/2010
17:18:39
| RE: 04 4.7 liter voltmeter overcharge
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Message:
Lot mechanic says it is battery temp. sensor under battery.
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mattb
Dodge Dakota
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11/23/2010
19:38:07
|  RE: 04 4.7 liter voltmeter overcharge
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Message:
awesome thanks that's what i have it boiled down to.. not to mention it overheated on the way to work this morning needed a new thermostat.. good times ahead
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