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Dan Dynyschuk
Dan Dynyschuk Posted on Oct 23, 2019
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My alternator is not charging battery and when i pull cable off shut the motor off

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Vernon Taylor

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  • Cars & Trucks Master 7,446 Answers
  • Posted on Oct 23, 2019
Vernon Taylor
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Removing the battery cable when the engine is running is taking a big risk - if the alternator was charging you could have caused a current surge capable of damaging the alternator and the in-car electronics.
If the alternator isn't charging then check the wiring and if ok remove the unit for repair or replacement...

5 Related Answers

Anonymous

  • 190 Answers
  • Posted on Jul 07, 2009

SOURCE: 1999 bmw 528i replaced battery and alternator

Replace your battery when its being tested there not testing it under a heavy enough load. A battery could have a dead cell in it and still show good on the charger. I've had that problem a few times.

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Anonymous

  • 1071 Answers
  • Posted on Aug 05, 2009

SOURCE: 2001 Kia Sportge :new battery, new alternator no charge current.

there is a main fuse in the box for the alternator it is held in by screws its one of the huge ones check this fuse

Anonymous

  • 921 Answers
  • Posted on Sep 28, 2009

SOURCE: LOW BATTERY CHARGE ON NEW BATTERY-2000 kia Sephia

i would take the belt off and then check the idler pulley assembly..it could be worn out..since the belt is off check the alternator pulley for any play also. A loose belt will not help the battery to keep a charge. if everything looks o.k. and you said you have a new battery and belt then it looks like your alternator went bad. Hope this helps.

Anonymous

  • 1 Answer
  • Posted on Jun 16, 2010

SOURCE: Got a 2000 Cougar that has a charging problem, new

THE SAME THING HAPPENED TO MINE. AFTER $400 I REALIZED IT WAS THE FUSE WHICH IS CONNECTED TO THE ALTERNATOR. IT WAS BROKEN AND WOULD COME LOOSE AT ANY SLIGHT BUMP, THEN IMMEDIATELY KILL THE BATTERY. FIRST THE RADIO WENT OUT THEN THE DASH LIGHTS. ANYWAY I GOT A NEW ONE FOR $40 AND PROBLEM SOLVED. =]

Anonymous

  • 12 Answers
  • Posted on May 19, 2012

SOURCE: 89 ford f150 alternator not charging constantly

i could possibably be the internal voltage regulator in the alternator at one time you could buy just the part and replace it dont know if thats possible any more

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Related Questions:

2helpful
2answers

Charging problem
Check that your alternator is actually charging the battery. With volt meter and car running check for at least 13.5 volts at battery. If not check fuses, big red wire from alternator to battery and for actual output of alternator at bolt where big red wire attaches to alternator. Should have battery voltage with car not running and at least 13.5 when engine is idling(motor running)
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Feb 06, 2016 • 1995 Geo Tracker
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Can you check alternator by taking bat cable off while running on Volvo mini excavator
That would depend on if it has an electric fuel solenoid or mechanical. If you have to pull a lever or knob to get the engine to die when you want to shut it off, it wouldn't matter if the alternator is charging or not, the engine will keep running until it runs out of fuel. If the engine dies when you turn off the key, this would indicate an electric fuel cut off and should shut off when the battery cable is removed if the alternator is not charging. But I think the best way to check your alternator is with a multi meter or at least a volt meter. With the engine running you should have at least 12.5V to 13.5V at the battery at idle.
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Jun 24, 2015 • Volvo Cars & Trucks
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Starting charging help com
What do you mean by, "then it burns up alternator" ?

It is common for people to replace their battery assuming its bad when actually it is an alternator issue all along. A weak or dead alternator will make the car run off the battery until the battery is too weak to either keep the car running or start the car again after you shut it off. Have you taken the vehicle to an auto parts store that will test your Alternator, Battery and Starter motor for you with their test computer? Many offer this service for free and it only takes a few minutes. Another issue could be the battery cables and or their attachment points. Sometimes cleaning of the battery terminals works and other times the corrosion has actually seep inside the stranded wire battery cables and reduce their ability to carry the needed amperage. When that happens replacing the cables is the best bet.
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Jul 28, 2014 • 1998 Buick Century
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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
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Jul 15, 2014 • 2004 Nissan Maxima
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1993 buick century battery and alternator check out but still pulling amps off battery is it the starter
Its not the starter.
Could be a long list of things - a mechanic would check for drain by disconnecting the battery and using a test light or VOM to check each circuit. Common items are small lights and stuck relays.
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Jun 30, 2012 • 1993 Buick Century
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Battery light comes on
Check the charging system, the light is an indicator of lack of charge coming from the alternator. Also load test the battery to determine it's ability to take a charge. Good luck, i hope this helps.
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Jul 29, 2011 • 2000 Ford Focus
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Replaced battery and alternator. car runs and either dies or I turn it off and the battery is dead. I have started it and pull the positive battery cable and engine will die
on new cars never pull the cables off while its running, it can fry your computer, charge the battery (i've gotten both bad batteries and alternators from parts stores) have the battery LOAD checked, if one cell is dead,, its never going to charge correctly, and any parts store can do this for you,, once its charged, start the car,, you should have a reading o f `13.5 to 14.5 on the battery posts, if not the alt isn't working, Make sure every single connection is clean, even where the battery grounds against the motor and car body itself,
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Jul 19, 2011 • Hyundai Sonata Cars & Trucks
2helpful
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MY WIFES 95 LESABRE PUT ALERNATOR
THE BLOWER MOTOR PROBLEM IS THE MODULE AKA BLOWER CONTROL MODULE IT SITS IN THE COWLING NEAR THE BLOWER MOTOR , CHEAP FIX DEALER PART MAYBE NAPA, COMMON PROBLEM .. ON YOUR ALT PROBLEM THESE ALTERNATORS ARE CIS UNIT WHICH MEANS THE ALT HOUSES ITS OWN CIRCUTRY TO KEEP BATTERY CHARGED IT SENSES LOADS AND DEMANDS THE CHARGING MAKE SORE YOU HAVE 12.6 VOLTS AT THE LARGE WIRE ON THE BACK ALSO GET YOU A VOLT METER TO READ VOLTS THE PARTS HOUSE HAS THESE TESTERS FOR FREE THEY CAN TEST IT ON THE CAR, WITH ALL THE COMPUTER ELECTRONICS ON THESE CARS TODAY ITS NOT WISE TO REMOVE THE BATTERY CABLE ? THAT ONLY WORKED ON OLD NON COMPUTERIZES CARS ?EVEN A GOOD WORKING CAR WILL DIE WHEN YOU PULL THE BATTERY CABLE? BACK TO THE ALT GET A NEW AC DELCO UNIT THERE SAME PRICE AND WORK ALOT BETTER ... GOOD LUCK
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Aug 24, 2009 • 1995 Buick LeSabre
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Not charging
Your alternator is faulty.
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Aug 20, 2009 • 1997 Dodge Intrepid
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Battery not keeping charge after alternator changed out..
If you have a voltage regulator than yes this could very well be the problem however I dont think your truck has one. Normally when this thing happens you check the diode in the alternator but you said you replaced the alternator so well assume that is not the problem. Next with the engine off and all electrical acc off. Loosen the positive cable on your battery take the cable off and watch for a spark between the cable and the battery, if there is a spark that means you have juice being drawn from your battery look for a short in your wiring.
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Mar 26, 2009 • 2002 Ford F150 Regular Cab
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