Question about 1991 Dodge Caravan

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New alternator doesn't work due to computer

New alternator doesn't keep the battery up due to computer problem, what next?

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  • Jeremy Pernar Jun 07, 2010

    give me some more info mate cant be that hard lol

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You have to replace the ecm or wire in an old style chrysler voltage regulator. I can tell you how if you need me to.

Posted on Jun 07, 2010

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If it reads wrong - not to worry - just carry on as it is.

Try turning everything on - then CAREFULLY remove the NEGATIVE battery cable - if the truck continues to run WELL - the problem is most likely the gauge.

Check it the local battery store - free.

Gary @ Fix Ya.

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Make sure your alternator isnt faulty first if you haven't already. A faulty alternator can intermittently produce sufficient voltage, but cause the symptoms you describe. A new battery seems to 'fix' it but when the battery is drained(because the faulty alternator is unable to keep it charged) ...the symptoms return. Good Luck

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I think its you alternator, the battery and alternator kind of work back to back with each other. I will take the car to shop that you know and can trust and have them diagnose the car all together. Good Luck.



Chula_07

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