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Sometimes an alternator with a weak diode(s)can test out fine, but can still trigger the light. I believe the problem is in your alternator. Good luck.

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โˆ™ 2005-10-30 02:06:55
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Q: Why would battery light remain on after replacing the wires alternator and regulator and the battery is good on your 1989 Taurus?
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Related questions

On a Ford Taurus if there is a bad alternator or not will the car DIE WHEN I REMOVE THE BATTERY CABLE?

You will destroy the voltage regulator if you unplug the battery while it is running, then you will have to replace the alternator anyways.

Where is the voltage regulator on 2003 Taurus?

Built into the alternator.

1996 Taurus battery charging light came on replaced the alternator and the problem seemed to disappear day later light back on battery not getting charged bad alternator?

you may have a bad battery or a bad voltage regulator

Where is the voltage regulator in a 2000 Ford Taurus?

Inside the alternator

Where is the voltage regulator in a 1989 Ford Taurus?

Located inside the alternator

Where is the voltage regulator located on a 1997 Ford Taurus?

It is internal, in the alternator

Where is the voltage regulator on your 97 Taurus sho?

I believe that is in the back of the alternator

Where are the alternator diodes on a 1994 Ford Taurus?

Unless things have changed, the diodes are part of the alternator. The voltage regulator is attached to the alternator but the diodes are part of the alternator.

How do you remove voltage regulator on 90 Ford Taurus 3.0l?

The voltage regulator on this car is part of the alternator and is easily removable with 3 screws.

What is the location of the voltage regulator in a 1993 Mercury Sable or Ford Taurus?

Most Ford alternators have an integrated regulator... it's inside the alternator.

What does check charging system in a 2007 Ford Taurus mean and the battery light is on and the steering wheel won't turn?

Usually the voltage regulator is the problem. Its located inside the alternator. More testing is needed to make sure that the regulator is the fault. If you want to guess. Replace the alternator. Sounds to me like the power steering and alternator belt has fallen off.

What is killing a battery on a 98 Ford Taurus?

Defective alternator, dead cell in battery, or something is on pulling power from the battery.

Where is the Voltage Regulator on a 1990 Ford Taurus 3 point 0 v6?

The voltage regulator is locate in one of two places. ***The voltage regulator is located in the alternator if you have an IAR type alternator*** ***The external voltage regulator (for the EVR-type alternators) is located on the driver's side wall, right next to the battery. It's much easier to see and/or remove if you remove the battery first. It has "Motorcraft" in raised lettering across the front*** I just had to remove mine.

What would make your 1999-2000 Ford Taurus shut down when driven and kills the battery?

Alternator is not recharging the battery. Have the alternator tested or test it yourself with a volt meter. You should read from 13.5 to 15.5 volts DC at the battery with the engine running. If any lower the alternator needs replacing. We had already changed the alternator, and bought a new battery. It is still doing the same thing. It will idle ok. When you drive it, you go down the road around a mile or so, and the darn thing shuts down again, and the battery is dead again. Are you sure the serpentine belt is not slipping? Did you replace the voltage regulator along with the alternator? If you answer yes to both these questions then I suspect you have the alternator wired incorrectly or the battery cables need replacing. The latter is what I suspect is the problem. You may have an internal break in one of the battery cables that just does not show up all the time. Look for a bulge in the cable especially a cable running next the the exhaust.

What causes Ford Taurus battery warning light to stay on?

I'm not sure about all of these, but I have a 98 Taurus and the battery light came on. After a few days, the car died altogether and I had to replace my alternator. I would definitely take the battery indicator seriously and have your alternator checked.

What would cause battery light to stay on in a 1998 ford taurus. I have had the alternator checked and was told it was good.I have replaced the battery and still battery light stays on?

Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alternator belt. If the battery and alt test ok than check the connections to the alternator and battery. The alternator should have 2 connections.

Where is alternator fuse located in 1995 Ford Taurus?

There isn't a fuse for the alternator. The alternator is belt driven, and there'll be two lines coming from the alternator - one goes from the alternator positive to battery positive, and the other goes to ground.

My 98 Ford Taurus won't start engine turning ok but will not start what do I check for?

Try replacing the fuel pressure regulator

Battery light on a 96 Ford Taurus stays on?

could be alternator or charging circuit or could be anything got to do with the battery when its draining out loose connection terminal

Bought a new car battery it lasted a couple of days now it dies what to do on a Ford Taurus wagon?

check out your alternator

How often would you change an alternator for a Ford Taurus?

As often as the alternator fails... ;)The alternator is not a 'consumable' type of part that requires routine maintenance/replacement - like a serpentine belt, brake pads, etc.Many repair shops and auto parts stores offer inexpensive or free alternator & battery testing.Be sure to test before replacing!NOTE: it is a little known fact that a weak or failing battery is a major contributor to premature alternator death. Any battery that is 4 years old is a prime candidate for replacement.See "Related Questions" below for information on how-to replace Taurus / Sable alternators

Why does the battery light go on in a 1997 Ford Taurus station wagon when a rebuilt alternator has recently been installed and the battery was replaced less than a year ago?

Could be a bad signal sent by the computer or the alternator is not charging to full capacity. Have someone check the charging amps on the alternator.

How do you restart Ford Taurus after battery replacement?

It should restart normally after replacing the battery. If not, it could be a security mode the car has entered. You should question a ford dealership about it.

Why after replacing alternator on 1999 Ford Taurus will not charge?

ooohh, probably just because fords suck- that's probably gonna be your main reason, yah.

How do you replace the alternator on a Ford Taurus show picture where is it location?

We cannot show pictures, however replacing the alternator on most models and years of Taurus is very easy. It is at top right of engine and even the belt tensioner is easy to access. If you are careful and don't totally remove the belt from the lower pulleys, the entire replacement of alternator can easily be done in less than an hour.We cannot show pictures, however replacing the alternator on most models and years of Taurus is very easy. It is at top right of engine and even the belt tensioner is easy to access. If you are careful and don't totally remove the belt from the lower pulleys, the entire replacement of alternator can easily be done in less than an hour.