Question about 1994 Dodge Caravan

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Check engine light is on

New alternator charged battery but not charching

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The check engine light could relate to something else - not your battery or alternator.

If your battery isn't charging from the alternator an illuminated battery symbol would appear.

It could be many things - low oil level, low coolant level, low windscreen washer fluid level. It could even be an electronic 'fault' - which a computerised diagnostic check would identify.

If the battery warning light is illuminated the first thing you should do is to check the tension of the alternator belt. You say that a new battery and alternator have been fitted? Take it to an auto electrician - he should identify any fault within minutes.

Posted on Jan 22, 2016

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Posted on Jan 02, 2017

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Hello. Welcome to FixYa. Please allow us to assist you.

The advice that I have to give you is to replace the new alternator. Sorry.

When you removed the negative wire from the battery, you inadvertantly caused an electrical problem in the alternator, which damaged one of the internal components.

The cables should never be removed from the battery with the engine running.

We are sorry that we do not have a better solution, but, in this case, the removal of the cable caused your problem. Perhaps you can return the alternator and get a replacement at no charge.

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Just installed a new alternater and the battery gadge is reding discharge I had the battery checked and its good. Can you help


Check the 'Bat' / 'Charge'/ 'Alt' indicator on the dash panel lights when the vehicle ignition is switched on prior to starting the engine.
This indicator should extinguish within approx 1 second of starting engine.

If the indicator is not operating the alternator cannot provide charge current - check:-
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2) the indicator lamp is not blown,
3) the alternator is properly grounded.

If the indicator light works normally, check the output voltage of the alternator is approx 14.5v when the motor is running.
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