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1999 Lincoln towncar...something is contin. draining battery??

Tried it w/ two separate new batteries and new alternator.  It drives until stopped, then dies. Power drains in idle position, and car needs a good jump everytime I stop car. Is it something electrical? Should I be looking for wiring diagrams?

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  • gerry bissi May 11, 2010

    is alternator light on? Looks like a battery symbol. If yes, you have a charging system problem.



    Easy way to test is to check battery voltage with volt meter. It should be 12 volts with engine not running. WIth engine running, it should be about 13.5 volts or more.



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Hello
Have you tested the pigs tail at the alternator to see if you are get 14.4 volt from the alternator if not you have got a charging system problem as I have seen this alot in the UK the car loses the power from the ingniotion side of the start/charge system.
I you are still having problems let me now & I will try to make to a diagram for a stan alone system.
Regards Paul
www.limotec.co.uk

Posted on Jan 13, 2009

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Hello info49624

you have done everything right so far. now since what you have done didn't work. This could only mean that your Alternator is no longer working. The purpose of the alternator is to keep the battery charged up so all your car functions work. The alternator stands by to restore the electrical charge used to crank the engine. It , once the engine is running, charges the battery and runs the electrical system of the car. It typically takes about twenty miles of driving to restore the charge to the battery from starting the engine. Most alternators are internally regulated to assure proper output voltage . Older cars have alternators with external regulators There are some exceptions to this but this true in the majority of cases. One of the exceptions is a high current alternator for a Lincoln that delivers 120 volts AC for receptacles (the same as at home) in addition to the charging of the battery.

-hopeufixit-

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