1993 LINCOLN TOWN CAR
185,000 MILES
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RDDMES
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  • 2 POSTS
I have a towncar. it is charging at 15 volts. is the alt. bad or voltage regulator and are they separate on this model? thank you very much. ron
Nov 6, 2011 at 1:16 AM
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RASMATAZ
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Its integral-could be the regulator not controlling the alternator. Have it load tested
Nov 6, 2011 at 3:36 AM
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DARKD0R
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Not an expert here, but 15 volts may be ok. The Haynes manual for Lincoln Town Car (1970-2001) says running voltage should be 14-15 volts. The spec sheet for the alternator I just installed in a 1988 TC listed regulator set point as 14.8v, idling with no accessories measured ~14.5v. The battery will only read 12v if the engine and all accessories are turned off. Nominal running voltage for a "12 volt" system is 13.5v or so. The relevant questions may be:
Has the charging voltage of your car changed recently?
Is 15v causing problems, like burned-out bulbs, etc.?
How accurate is your voltmeter?
If you haven't already, you might check some other cars' running voltage with your meter for comparison.
Nov 7, 2011 at 5:30 AM
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