Question about 1998 Lincoln Town Car

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Low volts light stays on

I replaced the alternator and the system is charging at 14 volts but, the low volts light stays on all the time. Is there a way to reset the light after alternator replacement?

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  • mechanair Jan 17, 2009

    it was a new alternator and it "IS" charging at 14 volts. Are you saying the alternator can be bad under load? I have driven the car for months (since replacing alternator) without a bit of problem with the charging system ... light just won't go out! Sometimes it does flicker???

  • mechanair Jan 17, 2009

    from what I have been reading, the internal regulator is what controls the warning light on the dash. Does this mean that the alternator could be good but the regulator inside it is malfunctioning? Like I mentioned, NO problem driving just annoying light on all the time.

  • mechanair Jan 17, 2009

    well, I have done that before (maybe on a Hugo) but, I don't think so on a "Lincoln" ... thanks anyway ... :)

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Internal reg could be bad and overcharge at times but not under charge at the smae time

Posted on Jan 27, 2009

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New altenator or junkyard one.if new return it, if junkyard just ignore light as its odds on they will not change it .the red light is caused by the difference in the voltage between input and output voltages .Quick test --start engine and run at 1500rpm disconnect battery and turn everything electrical on and if engine stops then change altenator if it stays running then altenator is OK

Posted on Jan 17, 2009

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