Question about 1998 Land Rover Discovery

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1998 discovery discharges battery 48 hours after new one fitted and same happened amonth ago when battery was disconnected for new alternator no signs of any discharging to be found

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  • Anonymous Mar 20, 2014

    battery keeps discharging,new battery fitted, still the same priblem



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Put an ammeter between battery terminal and main earth lead see how much current is being drawn through it. Should only be clock, alarm etc. If higher take the fuses out one after another till you dont have a lot of current going though it and thats the faulty circuit.

Posted on Aug 06, 2010


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Land Rover Discovery 1998.Replaced battery car still won't start.Alarm sound goes off when we try to start the car and the anti-lock comes on.Remote not working after changing remote battery as well.

Disconnect the battery for at least 2 hours. Hold the positive and negative battery leads together for 5 minutes to ensure the car's electrical system is fully discharged.

most important part ; PUT THE IGNITION KEY IN THE IGNITION! but not switched on.

Connect the positive lead. Connect the negative lead in one swift movement. Tighten the clamps.

Leave the vehicle for 15 minutes to pair the chip in the key and the chip in the ignition lock, and reset the Engine Control Module and Immobilizer.

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Oct 16, 2017 | Land Rover Cars & Trucks

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Replaced battery now there is zero juice

Don't assume that a new battery is ok. Personally, I've fitted a new battery to later discover that it was that new battery at fault.

However, it's quite rare ..

If your battery is discharging very quickly irrespective of whether the engine is running or the car is parked - suspect the alternator. Inside the alternator there is a rectifier pack - diodes - if this fails it can allow your battery to discharge very quickly - sometimes within a minute or two, quite literally.

If you can, disconnect the leads from the back of your alternator and charge your battery. Reconnect the battery but not the alternator. If your car starts and continues to start without the battery going flat - your alternator is at fault.

The only other fault that can cause a healthy battery to discharge is a parasitic drain - something is remaining 'live' after the engine is switched off and draining your battery power.

If you drive your car to a spares shop/auto electrician they will be able to tell you within a minute if your alternator is the problem.

Apr 22, 2016 | Hyundai Motor 2002 Sonata

2 Answers

I?d really appreciate if someone would take the time to help me. I had not used my 1998 Ford Taurus SE for about two weeks. When I attempted to start it up, the battery was completely dead (no lights, not...

Battery life and performance - Average battery life has become shorter as energy requirements have increased. Two phrases I hear most often are "my battery won't take a charge, and my battery won't hold a charge". Only 30% of batteries sold today reach the 48-month mark. In fact 80% of all battery failure is related to sulfation build-up. This build up occurs when the sulfur molecules in the electrolyte (battery acid) become so deeply discharged that they begin to coat the battery's lead plates. Before long the plates become so coated that the battery dies. The causes of sulfation are numerous. Let me list some for you.

  • Batteries sit too long between charges. As little as 24 hours in hot weather and several days in cooler weather.
  • Battery is stored without some type of energy input.
  • "Deep cycling" an engine starting battery. Remember these batteries can't stand deep discharge.
  • Undercharging of a battery to only 90% of capacity will allow sulfation of the battery using the 10% of battery chemistry not reactivated by the incompleted charging cycle.
  • Heat of 100 plus F., increases internal discharge. As temperatures increase so does internal discharge. A new fully charged battery left sitting 24 hours a day at 110 degrees F for 30 days would most likely not start an engine.
  • Low electrolyte level - battery plates exposed to air will immediately sulfate.
  • Incorrect charging levels and settings. Most cheap battery chargers can do more harm than good. See the section on battery charging.
  • Cold weather is also hard on the battery. The chemistry does not make the same amount of energy as a warm battery. A deeply discharged battery can freeze solid in sub zero weather.
  • Parasitic drain is a load put on a battery with the key off. More info on parasitic drain will follow in this document.
Making another post because there will be too much on one post.....

May 25, 2010 | 1998 Ford Taurus

1 Answer

My 1998 chrysler wont start. i think its the alternator. i just purchased a new battery and its giving me an error code 1684. im not sure what that means.

Your code isn't listed in my library but if your new battery discharged overnight, the alternator can definitely be at fault. This can happen when one of the diodes has partially or completely shorted but this will normally also show via the battery symbol on your dashboard if it is a 'hard' short.

Mar 17, 2010 | 1998 Chrysler Concorde

2 Answers

My 1998 Disco. won't star. The Battery and

its either the starter motor has given up or the battery is flat ,before you spend any cash try putting battery on charge for a couple of days and running another cable from the battery earth terminal to the engine block and try that

Dec 03, 2009 | 1998 Land Rover Discovery

1 Answer

Need help in removing and replacing starter on 1995 Discovery vehicle is on a ranch also need to know which wires go where

Remove the battery negative lead.
Remove drive belt.
Disconnect leads from rear of alternator (make a note of which ones go where)
Remove securing bolt from bottom of alternator.
Remove long through bolt from top fixing and withdraw alternator.
Refit is reverse of fit.

Oct 22, 2009 | 1994 Land Rover Discovery

1 Answer

Battery & alternator test good. Battery runs

from the sounds of it ?? could be the altenator ,a diode is allowing the current to run to earth,disconnect battery when not using the vehicle ,if it starts ok after having the battery disconnected then make sure a boot (trunk) light isnt staying or something stupid like the abs pump or suspension leveling`pump if fitted .But the altenator is the most common problem

Oct 17, 2009 | 1998 Lincoln Continental

1 Answer

1998 Avalon XLS battery drain

Does The car shut off mid drive? Could be a Wiring harness problem,
I think it's you're alternator though, That would be a good reason you're battery is dieing,

How do you get the car started again?

Sep 04, 2009 | 2008 Toyota Avalon

1 Answer

Something is running down the battery

fit a battery isolator till fault foundor disconnect battery when you stop.normal cause of battery discharge is diode in altenator,it allows current to earth out slowly

Nov 03, 2008 | 1998 Buick Century

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