Question about 1993 Ford Thunderbird

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Not charging batt

Freind has 93 tibird, new alternator, new batt. turns over but volts dwn rnd 8, not charging batt. voltage regulator? if so where located?

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If i were you i would check the alternator again. just take something steel and touch the top of the alternator but be very careful not to touch the pully. if you feel a magnetic pull on the alternator then then is not it if thier is not a pull then the alternator is bad its common to get a faulty part back from some places but if thats the case then go get your money back from where you got it. also check the batt. cables may not be tight enough.

Posted on Oct 19, 2008

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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


In some brand of alternators the regulator and brushes are an integral part and it is a matter of removing 2 screws and lifting out the part. On others the regulator is entirely separate unit located some where else on the vehicle. The voltage of 15.3 is on the upper end of the charge rate but it would be acceptable . Nominal voltage for a regulator is 14.5 to 15.5 volts. Understand that a battery is actually 13.2 volts not 12 volts and you need 14 volts for the battery to charge effectively. The higher the voltage the higher the amperage to run everything so if your alternator regulator is set at 14.5 volts then the max amps of the alternator would not be reached and if you have a current draw to run everything that is more than the output of the alternator then the battery will eventually go flat. Find yourself a reputable auto electrician and discuss the problem with him not a local mechanic

Dec 16, 2013 | Dodge Grand Caravan Cars & Trucks

2 Answers

Ammeter reads 18V with engine running.


I'm assuming you mean the charging voltage indicator. This is an indication of an incorrect charging voltage (too high, should be from 12.5 to 14 volts). This problem is most likely caused by a bad charging voltage regulator. There are two variations of the location of the regulator: 1) regulator is outside of the alternator and located on right side of the engine compartment on the wheel-well, below the starter relay or 2) The regulator is inside the alternator (in which case you'd have to replace the alternator).

Sep 01, 2011 | 1993 Ford F350

1 Answer

Battery light stays on all the time on my 1985 E250 ford van, i changed the alternator, changed the voltage regulator changed starter silonoid, and it does not hold a charge after jumping!


u need to chek for batt volts at the pos pole on the bak of alt.should b batt voltage if not then wire from pos pole on back of alternator to battery could be broken,causing no output tobattery. wiggl voltage regulator wires while engine runs an check volts with a voltmeter to see if it jumps to over 13v wen wiggling connector.also chek fuses an fusible links for continuity.

Apr 08, 2011 | Ford E-250 Cars & Trucks

1 Answer

2000 sunfire charging system


Alternator is bad or the voltage regulator. Both are easily tested. Remove the Alternator and have it tested at Auto Zone or O'Rielley's.

Jun 18, 2010 | 2001 Pontiac Sunfire

1 Answer

Battery trouble light stays on, alternator is charging at 14.6 volts with new batt


14.6 volts sounds a little bit high. I would have the alternator tested. Sounds like a possible voltage regulator problem.

Apr 28, 2010 | 1993 Lincoln Continental

3 Answers

How to check truck altornator


start engine unhook positive cable if it dies its bad alternator or fuesable link between batt and alternator also a volt meter will tell u if its charging a good alternator will charge 13.50 to 14 volts

Mar 18, 2010 | 1988 Chevrolet C1500

3 Answers

Thismorning lights and blower flashed battery light came on voltage dropped to low. batt.light still on truck is starting and running fine.i put a voltage meter on batt.---reads 12.9--11.0. top bolt on...


Sounds like you may need an alternator.
If the batt is ok, could be the alt going out.
A local pep boys or equivalent can check free or inexpensively...
The voltage regulator is built in to the alternator... so if you change the alternator, you change the regulator too.
k

Sep 18, 2009 | 1996 Ford Explorer

1 Answer

Charging problem 1991 volvo 240


14.6 means your voltage regulator or diode is suspect Despite having new alternator .Ive cross refrenced your smptoms in the haynes workshop manual and alternator is your only end answer.The haynes test is to start vehicle with multi meter connected across the battery terminals,increase the engine speed until the reading remains steady should be approximately 12 to 13v and no more than 14v.switch on as many accessories as possible(headlights heater blower radio etc)check that the alternator maintains the regulated voltage at around 13 to 14v.If the regulated voltage is not as stated then alternator is to be repaired/replaced.Good luck with it and a happy new year.

Dec 29, 2008 | 1991 Volvo 240

1 Answer

Voltage regulator


Voltage regulator is built-in to the alternator assembly.

Have you tried replacing the battery?
A battery with a shorted cell will not charge properly and may even damage an alternator or regulator.

Note1: use a digital voltmeter (about $25 at Lowe's or Radio Shack) and check voltage across batt terminals while engine running. If more than 12.6 Volts DC and more typically about 13 Volts, then the alternator is working.

Note2: from Jan 98 to May 98 shows a different part # alternator than June - Dec 98
check the manufacture date on your driver door edge.

Oct 25, 2008 | 1998 Mazda Protege

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