Question about 2005 Ford Taurus

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Electrical problem "check charging system" indicator keeps coming on after replacing battery & alternator...what could the problem be?

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There is a 125amp fuse on the side of the under hood fuse box make sure its still good battery will not charge if its blown out

Posted on Jul 14, 2009

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Ensure that the alternator belt has the proper tension, then check the connections at the back of the alternator as well as making sure the battery terminals are clean and tightened properly.

Posted on Jul 14, 2009

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I have a 2000 Chrysler Concorde, and the battery light keeps going off an on. I've already bought a new battery and Crankshaft Position Sensor. It's been starting hard and the battery just died in it.


Did you have the alternator checked? When the battery light comes on, it indicates either the battery is very bad and is draining power from the system, or the alternator is not providing enough voltage to keep the battery charged.
Once you have the electrical problem taken care of, and the system is getting proper voltage, you can see if you continue to have problems with the engine performance. (The crankshaft position sensor has nothing to do with battery charging)

Sep 08, 2016 | 2000 Chrysler Concorde

1 Answer

Battery not charging indicator. What could be my issue?


Who did the testing & did both the
battery & alternator fail at one time?

Auto Zone has a repair facility & did the work?

What codes are present?

Did anyone look at a data base, to see what
the message your getting was & the solution?

Aug 16, 2014 | 2004 GMC Envoy SLT

4 Answers

Is it the alternator?


Sounds like a charging system problem. The engine runs off of the alternator but if it is not charging the battery properly the battery will be drained until I engine will no longer run. You need to get the vehicle to a repair shop to have the battery and charging system check for defects

Jul 15, 2014 | 2004 Nissan Maxima

2 Answers

Battery light comes on when engine is off.


Warning on alternators never take positive terminal off battery when engine running a good chance you will fry the regulator or diode plate. Usually when the light stays on with ignition off indicates damaged negative diode in the rectifier. Try removing the warning light wire at the alternator if the light goes out this will indicate the above problem. If not then check if there is a charge relay. Please let me know if you have further problem and include more information on your findings.

Apr 07, 2012 | Cars & Trucks

5 Answers

How can I tell if my battery or my alternator is bad


Hi Bridget,
All the answers given are valid an good procedures and advice to follow.So if you do the basic procedures first this will give you a quick and clear indication as to which component is faulty.
Good Luck
Jason

Sep 10, 2011 | 2003 Oldsmobile Alero

1 Answer

Check engine light comes on and voltage gage drops below 9 volts, the battery gets drained in the process, battery is not charging. Checked the alternator and it checks out good.


There may be a no charge state in this case, or internal issues with your battery. I recommend checking the charging system and its corrosponding parts/sectors. Use the procedure below to isolate this issue.


Wear protective eye wear and clothing and remove all jewelry when checking your battery and charging system. Jewelry is a good conductor of electricity and is not recommended. Most batteries wear out every 3 to 5 years and need to be replaced. Always replace your battery with an equal replacement battery to assure proper operation. Automotive batteries have a +positive terminal (red), - negative terminal (black). Electricity is stored in the battery and then supplied to the vehicle when the engine is not running. While the engine is running the vehicles alternator charges the battery for future use. (Note: never disconnect the battery while the engine is running. If the battery cable is disconnected from the battery a spark can be generated which can cause the battery to explode or a major electrical malfunction to occur.)


To check a battery surface voltage, remove the positive terminal protective cover. Connect the +positive side meter lead (red) to the positive side battery terminal. Connect the - negative (black) side meter lead to the negative battery terminal. With the vehicle not running and the car sitting over night the battery voltage should be between 12.5 and 12.8 volts.(You will need to use a voltmeter for this testing procedure)


The alternator is rotated by a drive belt driven by the vehicles engine while it is running. Electrical voltage and amperage are generated to recharge the battery and supply voltage to the electrical system of the car. The alternator is held in place with mounting bolts. There is a main electrical wire on the rear of the alternator that supplies voltage to a main voltage junction box. If your alternator is not charging properly, your battery will slowly drain down from operating all the electrical systems in your car and stop the car from running.(most non charge states will be the cause of a loose belt or a low tension rate, due to a mis-adjusted alternator. make sure you have enough tension in the belt for full rotation of the alt pulley)


Next, you will need to check the alternators output with the Amp meter.

Testing the amperage output of the alternator is good for measuring the amount (not the level) of voltage the alternator can produce. This test can be tricky because if the alternator is weak it can still show it as producing amperage. Which is good, but if the voltage is low, it will still allow the battery to go dead. To check the amperage output of an alternator an amp meter is needed. Once the meter is connected start the engine. Next turn on all electrical accessories and raise the engine idle to about 1200 RPM. The alternator should output the max amperage it was designed to produce. Example: a 90 amp alternator should output about 88 amps. Note: An alternator cannot sustain maximum output for long periods of time. If the alternator is forced to operate at maximum output it will overheat and fail. An alternator is designed to operate at max amperage output only for a reasonable amount of time.

((Connect the voltage meter lead the same way you would in a battery static voltage check, Start engine (do not drive) at engine idle the voltage should be between 13.6 to 14.3 volts. If not the alternator may need replacing.)))

Apr 23, 2011 | 1996 Jeep Grand Cherokee

1 Answer

2003 olds aurora charging system low volts


The alternator is most likely the problem, it isn't putting out enough of amps to charge the battery, but enough to keep it going which won't last long. Before assuming the battery or alternator, try your battery connections for corrosion or tightness. If you live close to an auto parts store they can check the battery and alternator to see which is the problem. The battery will not hold up long if running lights at night or other power consuming things.

May 01, 2010 | Oldsmobile Aurora Cars & Trucks

1 Answer

Why is my charging light coming on at 2000 revs


There seems to be a no charge state in this case. I recommend checking the charging system. use the procedure below to isolate this issue.

Wear protective eye wear and clothing and remove all jewelry when checking your battery and charging system. Jewelry is a good conductor of electricity and is not recommended. Most batteries wear out every 3 to 5 years and need to be replaced. Always replace your battery with an equal replacement battery to assure proper operation. Automotive batteries have a +positive terminal (red), - negative terminal (black). Electricity is stored in the battery and then supplied to the vehicle when the engine is not running. While the engine is running the vehicles alternator charges the battery for future use. (Note: never disconnect the battery while the engine is running. If the battery cable is disconnected from the battery a spark can be generated which can cause the battery to explode or a major electrical malfunction to occur.)

To check a battery surface voltage, remove the positive terminal protective cover. Connect the +positive side meter lead (red) to the positive side battery terminal. Connect the - negative (black) side meter lead to the negative battery terminal. With the vehicle not running and the car sitting over night the battery voltage should be between 12.5 and 12.8 volts.(You will need to use a voltmeter for this testing procedure)

The alternator is rotated by a drive belt driven by the vehicles engine while it is running. Electrical voltage and amperage are generated to recharge the battery and supply voltage to the electrical system of the car. The alternator is held in place with mounting bolts. There is a main electrical wire on the rear of the alternator that supplies voltage to a main voltage junction box. If your alternator is not charging properly, your battery will slowly drain down from operating all the electrical systems in your car and stop the car from running.(most non charge states will be the cause of a loose belt or a low tension rate, due to a mis-adjusted alternator. make sure you have enough tension in the belt for full rotation of the alt pulley)

Next, you will need to check the alternators output with the Amp meter.

Testing the amperage output of the alternator is good for measuring the amount (not the level) of voltage the alternator can produce. This test can be tricky because if the alternator is weak it can still show it as producing amperage. Which is good, but if the voltage is low, it will still allow the battery to go dead. To check the amperage output of an alternator an amp meter is needed. Once the meter is connected start the engine. Next turn on all electrical accessories and raise the engine idle to about 1200 RPM. The alternator should output the max amperage it was designed to produce. Example: a 90 amp alternator should output about 88 amps. Note: An alternator cannot sustain maximum output for long periods of time. If the alternator is forced to operate at maximum output it will overheat and fail. An alternator is designed to operate at max amperage output only for a reasonable amount of time.

((Connect the voltage meter lead the same way you would in a battery static voltage check, Start engine (do not drive) at engine idle the voltage should be between 13.6 to 14.3 volts. If not the alternator may need replacing.)))

Jan 17, 2010 | Renault 181 Cars & Trucks

1 Answer

2000 ford zx2, battery light keeps coming on/off, had alt checked (good), battery checked (good), could this possibily be a wiring issue (short/bad connection)?


There seems to be a no charge state in this case. i recommend checking the charging system. use the procedure below to isolate this issue.

Wear protective eye wear and clothing and remove all jewelry when checking your battery and charging system. Jewelry is a good conductor of electricity and is not recommended. Most batteries wear out every 3 to 5 years and need to be replaced. Always replace your battery with an equal replacement battery to assure proper operation. Automotive batteries have a +positive terminal (red), - negative terminal (black). Electricity is stored in the battery and then supplied to the vehicle when the engine is not running. While the engine is running the vehicles alternator charges the battery for future use. (Note: never disconnect the battery while the engine is running. If the battery cable is disconnected from the battery a spark can be generated which can cause the battery to explode or a major electrical malfunction to occur.)

To check a battery surface voltage, remove the positive terminal protective cover. Connect the +positive side meter lead (red) to the positive side battery terminal. Connect the - negative (black) side meter lead to the negative battery terminal. With the vehicle not running and the car sitting over night the battery voltage should be between 12.5 and 12.8 volts.(You will need to use a voltmeter for this testing procedure)

The alternator is rotated by a drive belt driven by the vehicles engine while it is running. Electrical voltage and amperage are generated to recharge the battery and supply voltage to the electrical system of the car. The alternator is held in place with mounting bolts. There is a main electrical wire on the rear of the alternator that supplies voltage to a main voltage junction box. If your alternator is not charging properly, your battery will slowly drain down from operating all the electrical systems in your car and stop the car from running.(most non charge states will be the cause of a loose belt or a low tension rate, due to a mis-adjusted alternator. make sure you have enough tension in the belt for full rotation of the alt pulley)

Next, you will need to check the alternators output with the Amp meter.

Testing the amperage output of the alternator is good for measuring the amount (not the level) of voltage the alternator can produce. This test can be tricky because if the alternator is weak it can still show it as producing amperage. Which is good, but if the voltage is low, it will still allow the battery to go dead. To check the amperage output of an alternator an amp meter is needed. Once the meter is connected start the engine. Next turn on all electrical accessories and raise the engine idle to about 1200 RPM. The alternator should output the max amperage it was designed to produce. Example: a 90 amp alternator should output about 88 amps. Note: An alternator cannot sustain maximum output for long periods of time. If the alternator is forced to operate at maximum output it will overheat and fail. An alternator is designed to operate at max amperage output only for a reasonable amount of time.

((Connect the voltage meter lead the same way you would in a battery static voltage check, Start engine (do not drive) at engine idle the voltage should be between 13.6 to 14.3 volts. If not the alternator may need replacing.)))

Nov 02, 2009 | Ford ZX2 Cars & Trucks

2 Answers

Why does the battery light keep coming on after


The battery light indicates insufficient voltage. I would recheck all the battery connections to be sure they are clean and tight. I would also have the alternator output tested, since the light will come on if the alternator is not providing sufficient voltage to keep the battery charged. Take the vehicle to an autoparts store and they will test the battery condition and alternator output for free. Sorry for your trouble and I hope this helped, Best wishes.

Sep 26, 2009 | 2003 Ford Escape

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