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junior eaddy Posted on Mar 24, 2016
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My car is overcharging what could it be to caves it to overcharged,i am a disable veteran,need help?

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Marvin

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  • Cadillac Master 85,242 Answers
  • Posted on Mar 24, 2016
Marvin
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Many times an overcharging condition is caused by a defective battery, in particular a shorted cell inside the battery. have the battery thoroughly tested by some one at a discount auto parts store like O'reilly etc.

james laughton

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  • Cadillac Master 2,195 Answers
  • Posted on Mar 24, 2016
james laughton
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Sounds like a faulty regulator rectifier on the alternator borrow a compatible alternator to test the charging system
It usually is cheaper to replace the whole alternator than have them repaired

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FUSE ALT/HMTR

Hi you need to check for positive wiring shorting to earth.the cause for overcharging might be the regulator on the alternator blown.
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07 Milan overcharging battery. Replaced alternator. Still overcharging battery. Original alternator bench tested good. What would cause this.

i would say pcm.these. are notorious for getting spiked from ignition sys.have ya had any perfomance problems in the past?
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Why is 1987 toyota pickup overcharging

posible bad voltage regulator inside the altenator
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I do not get any cold air from AC vents. I believe that I overcharged the system by adding from a can that had a faulty pressure guage. The AC was working even after I had overcharged it. After...

You need to have a repair shop fix the problems
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I was putting freon into a/c,but towards the end when the can was almost done,it stop blowing air into the car.I think its either a fuse or relay.how do i find out?Is that what it is?thanx!

It's possible you overcharged the system with refrigerant. An overcharged system will shut down a compressor. It's best to check the pressure in the system (most auto parts stores will carry AC pressure gauges). If the system is overcharged, you may need to evacuate some of the refrigerant b/4 the compressor will engage again.
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Put a new alernater an still over charging

Over charging could be the result of several things including:
    Faulty Voltage Regulator
  1. A car's battery will overcharge if the voltage regulator isn't working correctly. A voltage regulator is usually part of the alternator, and is used to keep a steady flow of voltage to the battery. If the voltage regulator is defective, it will send either too little or too much charge to the battery. If it sends too much, the car battery will overcharge. The voltage regulator is easily replaceable at an easily affordable price, sometimes for as little as twenty dollars, as of 2009.
  2. Faulty Alternator
  3. Sometimes the alternator itself can be at fault. The alternator is the device that converts the mechanical power of the engine into electrical power to charge the battery. When an alternator breaks, it usually stops creating electricity for the battery, which will then eventually die. However, if the wrong alternator is placed in the car, or if the alternator is running at the wrong pace, it will create too much energy for the car battery, causing it to overcharge. The alternator is another easily replaced part.
  4. Incorrect Charger Use
  5. If a battery charger is used to charge your battery outside of your car, improper use of the charger can result in overcharging. If a battery is placed on the charger too long, it can result in overcharging, and a significant decrease in your battery's lifespan and efficiency. This is why it is important to read about your specific battery and understand how long it needs to charge to be effective. Too much charge will lead to problems.
  6. Faulty Battery Chargers
  7. Sometimes chargers can be faulty. Their settings may be wired incorrectly, or the charges labeled incorrectly. As a result, your battery may be getting overcharged, even if you are carefully monitoring your charging. This is a problem that is hard to avoid, as manufacturing mistakes can happen anywhere, anytime without warning. It is a good idea to test your charger regularly to see if it is running correctly.
  8. Heat
  9. Extreme heat in the summer can also have an adverse effect on the car battery. If the battery has been previously overcharged, extreme heat can increase the problems caused by overcharging, and exacerbate any other problems with the battery. This problem can be hard to avoid if you live in a warm climate. The only real way to ensure safety against this problem is to avoid overcharge in the first place.
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My jeep is overcharging by the gauge

with a car that old its possible the gauge is off but to be sure you can go to autozone or pepboys im pretty sure they will test the charging system for free . or if you have a volt meter you can check it yourself it should be 14-14.8 with the car running anything higher than 14.8 is overcharging . if it is overcharging you will need an alternator for sure and if the battery is over 3 years old its best to replace that too so you dont break down in the near future because overcharging cooks the battery so whatever life it has left has been cut hope this helps
1helpful
1answer

Battery overcharges and light is on

Never saw a charging system problem cause anyone to fail inspection. But, overcharging will cook the water out of your battery and can damage the computer system if not taken care of. Overcharge can be caused by either a grounded alternator field wire or a bad regulator. Since the condition appeared after replacing the alternator it too is suspect as an internal grounding can also cause that.
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