Having problems with your 2000 Kia Sportage ?

We've put two alternators in and they keep going bad within minutes of running the car

Posted / edited by AnonymousUser on : 25-05-2020

Answers :

Like roniecon said it may be sensing a low battery. you've got to have at least 12.6 volts in the battery for it to set up the field for it to start producing. you only get one chance at this, if you try to start it without at least 12.6 volts it will never work. the same thing goes for a starter. check your battery with a voltmeter or at least put it on a charger for a few hours before trying again. this goes for all vehicles you need the voltage to set up the field 1st. also, not trying to insult your intelligence but have you made sure the battery terminals are clean and being put on the proper terminal. i say this because it crossed the terminals myself one time and blew an alternator. believe me i was not happy when i smelled the smoke when it started to come out of the alternator.
Sounds a bit wierd to me....may have a very severe short someplace. Might try unplugging the connector on the air conditioner compressor as a start. Wonder if you have any blown fuses...does not sound like it though. You did not say what the year of the vehicle was...on very very old cars they had separate alternators and voltage regulators and when putting on the new parts part of the instructions was to use a jumper wire and briefly for a second touch the wire allowing a spark from the positive battery lead to the alternator or generator output. This was done before even starting the engine. This was then necessary to polarize the unit so that it charged in the correct direction. Without doing this it was possible (50 50 chance) for the generated voltage to be backwards and it would try to discharge the battery rather than charge it. I have never heard of such a thing though with modern alternators and surely your problem is on a modern car. ... so....probably need to look for a severe short someplace. ... and since evidently you have no blown fuses it looks like it may be someplace directly connected to the positive battery wire. You might look very carefully at the wires that goe to the starter as they could be shorted somewhat and perhaps still allow enough power to start the vehicle...sorry to not know exactly the problem solution.
Repair Help & Product Troubleshooting for 2000 Kia Sportage

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