Question about 1996 Lincoln Town Car

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Is the voltage regulator in the alternator?And if so will the alternator still test good if the voltage regulator is not working?

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For 1996 Lincoln Town Car 4.6L SFI 8cyl the Voltage Regulator is located: Under hood, center, upper engine area, mounted on front upper passenger side of engine in alternator. In 1994 Lincoln Town Cars, the voltage regulator is part of the car's charging system, which helps create and maintain enough electrical charge for the car to operate correctly. The alternator creates a charge as the car drives, which is then transferred to the battery. A faulty voltage regulator will cause a few symptoms; some may only be attributed to the battery or alternator. Check this symtoms:

Starting Issues: If your Lincoln Town Car is having problems starting, it could be a sign of a faulty voltage regulator. The battery receives its charge from the alternator, with the voltage regulator controlling the exchange of electricity. A faulty voltage regulator can constrict the flow of electricity too much so that the battery runs out of charge and is not able to power the vehicle enough to start the engine.

Corrosion: A sure sign of a malfunctioning voltage regulator on a Lincoln Town Car is constant corrosion buildup on either the battery's terminals or the battery's tray. With a faulty voltage regulator, the amount of electricity coming from the alternator to the battery is not controlled, which will result in the battery overcharging. As the battery becomes overcharged, the acid inside will boil out and cause corrosion.

Split Battery: Just like the buildup of corrosion, if the Town Car's battery is split, it is a sign of a bad voltage regulator. As the battery is overcharged by the alternator and it boils, sometimes the acids do not spill outside of the battery. Instead, the battery heats up to the point that the plastic casing around it actually cracks, or the battery splits. Replacing the battery will not solve the problem since it is the voltage regulator and not the battery that is bad.

Hops this guide to solve it.

Posted on Jul 14, 2010


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Posted on Jan 02, 2017

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SOURCE: alternator putting out 16.5volts

or and more likely... the voltage regulator either mounted on the alternator or on the wheel well is defective.

Posted on Feb 26, 2009

  • 4669 Answers

SOURCE: Battery dosn't charge, alternator/voltage adapter test's good.

Did you test the Alternator on or off the truck? It might be a problem with the control system to the Alternator. The regulator need a battery feed to work, It is usually ran through an alternator fuse.

Posted on Mar 11, 2009

  • 466 Answers

SOURCE: Chrysler 300m battery light is on; alternator

The voltage regulator is in the powertrain control module and sends a signal to control module body qu is the light that turns off the battery

Posted on Feb 24, 2010

  • 92 Answers

SOURCE: how to jump terminals to test external voltage regulator

Jump terminals A to F and the alternator should full field and charge. If it charges then replace the regulator. if it doesn't charge replace the alternator. I remember the terminals by thinking of the word AIR FORCE .

Posted on Apr 03, 2010

  • 7 Answers

SOURCE: Have 2002 jeep grand cherokee

The voltage regulator is in the PCM. If there is a problem with it, the PCM has to be replaced.

Posted on Oct 03, 2010

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Number ten fuse keeps popping its for the battery voltage sensor alternater good battery good starter good and battery light stays on plz help

Sounds like a voltage regulator. You never said what type of car it was. Some vehicles have voltage regulators that are built into the alternator..other models the regulator can be separate. If it is part of the alternator the whole alternator will need to be replaced. If it is a separate component it may be a matter of buying a new regulator (plug and play). Have your vehicle load tested at a reputable auto service first.

Aug 05, 2015 | Cars & Trucks

2 Answers

On my 1994 camaro alternator not charging,had alt check and its good.voltage at battery 11.89 when running anyone have a Idea what problem is

the alternator is the problem
check for loose drive belt
check condition of the belt
check regulator
at 1500 rpms the voltage would be 14.5 -14.8 volts dc
Have a load test done on the battery to check for bad cell

Jun 07, 2015 | 1994 Chevrolet Camaro

3 Answers

" HI " Where is the Voltage Regulator Located on a 2002 Dodge Stratus R/T 3.0

The way to check for an over or under charge is to connect your volt meter to the battery, before starting the vehicle.
You should have a reading of 12.5 to 13 volts. If it's 11.8 like you stated or less, it means battery is not fully charged, or it's bad. Now start the car & check voltage again while running the engine, the voltage should exceed 14+ volts, this means your Alternator is charging, the voltage should drop after battery has been charging for awhile. When you turn the engine off after letting it charge the battery, & if the battery is good, you should now have 12.5 volts to 13 volts.
Now to answer your question, the Voltage Regulator is inside of the Altenator, I believe you xcan take the alternator apart to replace it, or simpler to just replace the complete alternator.

Nov 15, 2014 | 2002 Dodge Stratus

1 Answer

Voltage regulator 2003 buick lesabre

The voltage regulator is inside the alternator.
So if the alternator is good as you say, the regulator is too.
I suggested you check the wiring on the car.

Dec 23, 2012 | Buick LeSabre Cars & Trucks

1 Answer

2nd newly rebuilt alternator burning out.

Due to the nature of the battery technology used with vehicles the alternator is mostly incapable of charging the battery. The car alternator is designed to keep a fully charged battery fully charged and to provide all the power for the car equipment.

The alternator charge rate is regulated by a voltage regulator. Because the alternator output is connected to the battery, the alternator and battery voltage will be the same and the voltage regulator monitors that voltage.

The lower the battery voltage the more output the alternator will produce in order to correct the situation but because a lead acid battery has a high internal resistance to accepting a charge the terminal voltage will quickly rise to the alternator regulated voltage and fool the alternator into thinking the battery is fully charged when the output will drop to the order of just a couple of amps.

Switch on the headlights or a similar load that will lower the battery voltage and the alternator will increase it's output again - but only by the amount of current the headlamps or other load is consuming.
It matters not what the alternator rated maximum output is, it is designed to provide only the necessary current and no more.

The only time an alternator should ever need to produce maximum output is when on a dedicated testbed and then only for a short duration to avoid damaging the unit. Testing the current output on a modern vehicle is not recommended except for the regulated voltage testing and a rule-of-thumb output test where all equipment is switched on and the engine speed raised while the battery voltage is monitored.

Most modern alternators use an internal voltage regulator but a few systems use a separate voltage regulator. No alternator rebuild would be complete without a regulator test and probably a new or replacement regulator, which is where the majority of charging system problems are, or the brush gear.
Assuming the wiring is ok, no alternator should suffer any harm if the voltage regulator and auxilliary diodes (if fitted) are in good order though fitting a defective or a discharged battery can cause it to overheat and be damaged.

The alternator usually just about stops producing an output when the battery voltage is in the region of 14.5/14.8 volts.
Your description indicates the voltage regulator is not working correctly - unless 40 amps was being consumed by the car equipment the alternator should not have been producing 40 amps.. I suggest you also have your battery tested

May 12, 2017 | 1988 Acura Legend

2 Answers

My battery light is on all time on the dash, why?

There is a fault in your battery or the alternator or voltage regulator. It is most likely the alternator as in this model the voltage regulator should be built into the alternator. You can remove the alternator and have it tested at Auto Zone or Advance auto or Pep Boys, most major auto parts stores offer to test them to make sure that is the problem. Since you would have to trade in the old one as a Core to get the new one it only makes sense to have it tested first anyway.

Jun 04, 2011 | 1997 Honda Odyssey

2 Answers

How do i test my alternator to make sure it still works good

Start the engine and turn on all your lights and your a/c blower on high. You should have 13 to 14.5 volts at your battery, if you have less then 13 volts. Then you have a weak alternator or faulty voltage regulator, to test the regulator, turn everything off and check the voltage again with the engine running. You should have 13 to 14.5 volts again, if anything different as to being too high or low, then you have a faulty regulator which is built in to the alternator so your still going to have to replace it. To test the battery, you should have 11.5 to 12 volts with everything off and engine not running.
Good luck and hope this help. A battery older then 4 years may no long be able to hold a charge and will need to be replaced. A bad battery will cause the alternator to fail much quicker then a good battery.
Thank you for using Fixya

Mar 16, 2010 | 1995 Chevrolet S-10 CA Edition

2 Answers

Will not charge. replaced alternator, and voltage regulator. fusible link is good. battery tests good

good the alternator you installed be bad? if it tests good then theres a fuse or a wire thats bad, check links at starter and battery and alternator if it has them there,start there, i would first have that alternator tested.good luck. also check wiring to regulator had problems with that!!!!

Nov 14, 2009 | Lincoln Mark VII Cars & Trucks

1 Answer

Battery dosn't charge, alternator/voltage adapter test's good.

Did you test the Alternator on or off the truck? It might be a problem with the control system to the Alternator. The regulator need a battery feed to work, It is usually ran through an alternator fuse.

Mar 11, 2009 | 2005 Mazda 6

1 Answer

Alternator putting out 16.5volts

or and more likely... the voltage regulator either mounted on the alternator or on the wheel well is defective.

Feb 26, 2009 | 2003 Chevrolet Impala

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