Question about 1999 Ford Windstar

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I have a 99 windstar. I replaced battery and alternator. charging system checks out Good. 14V charging and good battery strength. Battery light still on. I have been driving in this condition for 3 days and no problems.

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  • john_d_skros Jun 18, 2009

    After new battery and alternator I did have the starter,alternaor and battery checked at Fleet Farm Auto Service. They used a hand held device that checked all three. The three parts tested good. I have driven the van for three days now and the battery is at full charge according to the above check.

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With the battery light on and at 14 volts I would suspect that the diode trio is going out and over charging the battery, first check that the battery has fluid in it all the way if it does then have it load tested at a battery shop like all state or sears or any parts store can do a load test for you. Just because it's putting out 14 volts does not mean it's putting out enough amperage, the light is giving you fair warning of an impending problem, have it checked at AutoZone or shucks it does not cost nothing and they can test the alternator output as well.

Posted on Jun 18, 2009

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