Question about 2000 Honda Civic

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Alternator vltg issue

Having issues with irregular vltg running from alternator wiring connecting to it one at 12 vlts the other at 8 vlts my mechanic isn't sure what they should be pushing out or which one doesn't want to make mistake and burn bat

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  • 3 Answers

Change alternator if you did all realy change again might be defective

Posted on Mar 27, 2014

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Posted on Jan 02, 2017

SOURCE: 1988 Honda si Alternator Problem

how do I remove a alternator from a 19988 honda accord?

Posted on Aug 20, 2008

csmock132
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SOURCE: New alternator and battery battery light stays on and car dies

Have you checked the alternator fuse? The regulator needs power from the fuse to turn on the alternator. The old alternator could have blown the fuse.

Posted on Apr 02, 2009

  • 1201 Answers

SOURCE: Charging System issue!

I had a simular problem, and I have worked on cars for 37 years.
In my case it was the ecm. I tested and tested, come to find out, at higher rpm's, (when car is being driven), the ecm caused the voltage regulator to stay in a high charge situation, which burnt up the alternator, changed it, and was fine.
I'm not saying it will work in your case, but you tried everything else.

Posted on Apr 23, 2009

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SOURCE: Electrical problem with charging.

Well, you need to find out what is shorting. You can turn the car off and using a Volt/ohm meter on the amp setting, remove each fuse one at a time. The power across a fuse with the vehicle static should be in the milliamp range. How does he know it is drawing 9 amps? You pull each fuse and check in and reinstall and move on to the next one until you find the short.
Some times the alternator has internal shorts. It's pretty easy to remove it and take it to AutoZone for a free test. Just remember to remove the battery cable when removing it.

Posted on Apr 25, 2009

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SOURCE: 98 honda accord alternator/fuse issue

their is no fuse for alternator.you can go to the auto parts store and they will test your car for free.And tell you weather it alternator or battery.But it sounds like a battery issue

Posted on May 07, 2009

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1 Answer

Starter, alternator wiring diagram


Would need to post year make and model for a diagtam. In all probability when the battery got shorted out by the pulley it damaged the voltage regulator inside the alternator. Make sure all your connections are clean and tight.

Aug 09, 2016 | Cars & Trucks

1 Answer

1987 hONDA CIVIC CRX 300 THOUSAND MI. HAVING CHARGING ISSUES. NEW BATTERY-ALTERNATOR-WHAT ELSE CAN I TRY


It could have bad wire connection to the alternator, When the car runs try disconnecting the battery if it stays running the alternator is good and the wiring is good. If it dies then the alternator or the wiring is bad.

Aug 01, 2013 | 1987 Honda Civic

1 Answer

2003 mustang gt drains battery in 2 days


03 Mustang GT (Parasitic) Battery Drain Fix
welcome.gif
Hello,
I am seeing a lot of mustangs are having battery draining issues and I wish to share some simple solutions found while working on a friends 03 GT 4.6ltr.

In a quiet area, key switched off, hood up, Listen carefully close to alternator. I heard a high pitched hissing/whistle sound at low volume, came from back of alternator. This sound was the voltage regulator/rectifier staying on when key is off due to faulty diodes inside the voltage regulator/rectifier circuit, can cause battery to go dead after car not ran in about 2-7 days.

After having the alternator tested free at a parts store, test showed alternator was good because the faulty diodes in the alternator did not show up on the test, the machine did not test for faulty drain back issues that were present.
Alternator on-car-fix:

There was battery voltage running at all times through the two-wire connector on back of alternator. Disconnect the battery first for safety and to reduce chance of short circuit. The yellow wire/with white stripe is hot while car is off so I traced this from the 2-wire connector on the alternator then closer towards driver side front fender. Next I cut the Yellow/White Stripe wire, spliced a good connection wire to it and ran it through a hole in the fire-wall to the fusebox(under dash), connected it to a 15a fuse that does not get used but has power when key is turned on but no power when key is off.

The purpose for re-routing the hot wire to the alternator, is to turn off the alternator charging circuit when the key is turned off so it may not run down the battery. I am seeing good results with this fix(or patch) so far. No More Parasitic Battery Drain!

Another fix can be to change the small pulley on the alternator to a larger pulley so the alternator does not spin too fast, putting too much energy through the diodes can cause a charging system to act a fool. So if you have charging issues and have an alternator changed, putting a larger pulley on can make sense turn into saved dollars(especially on high revving engines).

I hope this info helps to solve some draining battery and/or alternator issues.

thanks.gif for reading,

TyBorg1

Apr 12, 2012 | 2003 Ford Mustang

1 Answer

Battery light comes on /stays on after starting car and goes out after driving for a bit over 40/50 mph and comes on again when im slowing down to turn or stop


That would be an indication your alternator may be having issues (or the battery with storing power). The light is basically connected to the +12 output from the alternator and the +12 post of the battery. When there's enough voltage difference between the two, the light will glow.
I recommend getting your battery and alternator tested at a place such as advance auto and see which is causing the issue

Dec 17, 2011 | Cars & Trucks

1 Answer

Major electrical issue. Always a draw on the battery ... Went through 12 batteries and finally put a dump truck battery in it. Replaced the alternator as well. Now the car will not start at all. Three...


Hello. Install amp meter on the battery main feed. One the amp meter is coupled by direct or induced coupling. Start remove the fuses and watch the amp meter and when the amp meter indicator drops that one of the circuit that have some shorted or running. Now they can be more than one circuit that is operating when it shouldn't.

First thing with the amp meter connect disconnect the alternator. Do get wrong here. It a percaution if you happen to concur a large short. Also, when disconnecting the alternator look at the amp meter to see if there is a drop in current being used.

An alternator is a three phase AC generator. There are 6 to 8 high current diodes hook up where it turn the three phase AC voltage to DC voltage half wave + side of the AC. Then this DC voltage being combined voltages goes to a regulator which smooth out the voltage to 13.8 volts approx. The 13.8 DC voltage is need to recharge the battery. Because the vehicle operates on 12 voltage system it uses the battery for the constant voltages of 12 volts and a story house of current. stewbison

Aug 20, 2011 | 2004 Chrysler Pacifica

2 Answers

JUST HAD MY ALTERNATOR AND FUEL PUMP REPLACED. NOW CAR WILL NOT ACCELERATE AND BACK FIRING. MECHANIC STATED JUST NEED TUNE UP COULD ANYTHING ELSE BE THE PROBLEM?


Take it another Mechanic, replacing the fuel pump and alternator would not cause the issues you have describe unless it been there prior to you having the Jimmy worked on. No acceleration could be caused by many things like spark plug wires crossed which they should not be, to a clogged Catalytic converter.

If there is an Auto Zone around your area, have the jimmy scanned for the DTC codes and hope that should lead you to the issue that needs to be addressed. Auto Zone scan DTC codes free of charge and can give you the recommend steps to fixing the problem.

Here is link that was an issues for the 4.3 vortec engine you have.

http://members.shaw.ca/betterthanyoutoo/Sticking%20Poppet.htm

Thank you for using Fixya and keep me posted, be glad to help you get your jimmy running 100% agian soon.

Apr 05, 2010 | 2000 GMC Jimmy

1 Answer

Battery not charging, alternator seem to putting


11.50 volts won't be enough potential to overcome the batteries 12 volt standing charge.

Either your alternator is shot...which you can check by going to an Autozone and having a free system check. Or your battery is already going bad and not sending enough voltage to the alternator to make the 13.8-15.8 volts it should be making.

If the alternator is the culprit a good mechanic will swap it out for a fairly low price and save you a lot of headaches.

Good luck and be careful.

Jan 14, 2010 | 2002 Volvo S60

1 Answer

The charging system light randomly comes on then shuts off. Why? 2003 lincoln navigator


this is caused by either an alternator rectifier issue or a wiring harness at the alternator having a connection issue like burned contacts.

Aug 07, 2009 | 2003 Lincoln Navigator

1 Answer

Something electrical is draining battery on 1987 XJ6;


Have you checked the alternator? The alternator may not be charging the battery. With engine running, check the voltage at the battery (it should be ~14V). If it's less than that, your battery won't charge properly. You can take your alternator to auto store to have it load tested also to be sure. Sometime alternator issues don't show up until it gets hot. Defective alternators have also been known to drain the battery after the car has stopped.

May 10, 2009 | 1987 Jaguar XJ6

2 Answers

Bad wiring to alternator


I need more information please, bad wiring... not enough will need to know more, such as, The wires to the alternator are bad, previous owner did a bad wiring job to the alternator, or i messed up the wiring to the alternator and need some advice.

Jul 30, 2008 | Toyota T100 Cars & Trucks

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