Question about 2000 Lincoln Town Car

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Battery light comes on and off. got a new alternator and battery, checked all fuses. any ideas?

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  • Lincoln Master
  • 14,585 Answers

On some/most cars now days the regulator is in the computer. this could be the problem. or as simple as a loose wire. check the wires going to the altenator for corrosion. then check the wires going to the computer for the same, to iclude pushed out pins. also I han=ve found that the sockets in the pigtails get a little large making for a loose connection. If they look bigger that the rest, take a needle and pry them closer together. If you have a cracked connection in the computer it is as best hard to find, takes a magnifing glass to spot and you have to know what your looking for.
Randy

Posted on Nov 10, 2010

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Posted on Jan 02, 2017

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SOURCE: Hi, Battery light coming on

i think you are right...the alternator may need a new set of brushes. battery light coming on and off is an indication.

a busted rectifier would not indicate an on and off light but rather a steady on light. but it has 6 diodes and one busted diode would do the same. on and off battery light depending on the load present in the system.


tnx 4 using fixya,

drcool

Posted on Nov 07, 2008

  • 1986 Answers

SOURCE: 2002 mazda protege5 auto battery light coming on

I'm guessing that you've tested the actual current output of the alternator then. I'm assuming that the output is between 13-14Volts at the battery when the car is running... If it's too low, then it's not charging your battery at all, too high, and it's frying your battery.... Another thing that can cause this is if you have a short in your electrical system.. that, however, will be difficult to narrow down...

Posted on Aug 12, 2009

tripletauto
  • 1450 Answers

SOURCE: My 1998 Saturn SL2 has

need to check the wire from alternator to battery for corrosion and chave cables checked

Posted on Sep 11, 2008

BCAS1298
  • 3092 Answers

SOURCE: battery not charging light comes on. new battery

I don't know what kink of car you have, but some will have a alternator fuse, also with a volt meter check voltage on big wire at back of alternator should have 13.5 + volt's, then check voltage at battery should have same voltage there also, do this with car running, if you do not have same voltage at battery less short between alternator and battery or bad fuse. There also some fuse links at starter on some car's.

Posted on Dec 03, 2009

  • 538 Answers

SOURCE: Battery light comes on when accelerating, alternator is ok

In fact the Alternator is on it's way out, I had Taurus that was doing the same thing. When the RPM's were over 3000 the light would flicker. What happens is, the slip rings wear and get out of round and when the RPM's get too high the brushes start to bounce causing the light to flicker. Keep in mind the alternator is spinning about 3 times the speed of the engine. Pick up an alternator it's just a matter of time, mine went about 6 months like that, try to keep the RPM's low.

Posted on Dec 31, 2009

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