Question about 1998 Cadillac DeVille

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Battery keeps running down, after I get a jump car will run sometimes all day and then with no warning goes dead again.

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Check to make sure all courtesy lights are shutting off, under hood, trunk, dome/map lights, etc. Batt. could be shorted out internally.

Posted on Nov 11, 2010

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2002 ford ranger start engine truck run for 5 minutes an shuts off then i have to jump start truck battery is dead bad alternator or battery


taking the battery leads of a running alternator is one sure way of destroying the alternator
if you think a battery is dead you have it load tested and replaced if it doesn't meet the test
what you should be doing is taking the vehicle to an accredited auto electrician and having the battery load tested and the alternator and voltage regulator professionally tested for proper operation

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Hello, I have a 2003 navigator 5.4, 2 days ago warning light came on said check charging system (battery is only 6 months old), then last night went to store and when I came out truck wouldn't


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2002 Mazda tribute won't start but can jump, car will shut off while driving


you mentioned new alternator and battery, but it seem that the alternator is not charging, when you install the new battery the car started and run and after hours of running specially if head light is on the car shuts down. this is an indication that the alternator is not charging. (factory defect) have it checked or return part to auto supply.
if alternator is good and you have the car jumped and run it will not shut down even if your battery is dead because the charge of the alternator is enough to power the electrical system of the car until you turn it off. this applies to all cars

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My battery is going down over night and i bought a new battery and it still goes down over night.


Have your alternator checked, it may charge some but not enough to keep your battery charged. If it has an internal short (blown diode)it can discharge your battery.

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1 Answer

Battery keep dying


you have 2 problem a) alternator b) battery fix it.
see the diagram attached.
God bless you69c96689-8313-4b8a-8e75-9010751b4d23.jpg

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Battery keeps going dead. Brand new battery i jump start it and it runs all day next day dead again! cant find out what is draining the battery overnight


something draining the battery .check blower motor sometimes keeps running even when indicating it is off .remove battery terminal and tap against the terminal to see if there any large sparks.if they are . remove fuses one by one as u test till the spark is not there .find out what links are used on that link and disconect one by one when the fuse is on and test if the large spark is still there

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1995 dodge stratus keeps going dead in driveway. I jump it off and let it run 15 mins to charge battery up. Turn off and crank right up, but the next day it is dead again.


With engine running used a voltmeter and check voltage at battery, you will be checking alternator out put voltage, should have a reading of no less then 13.0 volts, if less bad alternator, the reason it keeps going dead is that the car is using the battery to run it .till the battery has no more power, then you jump it and the battery is charge up again and will run again till it goes dead again.

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2001 nissan pathfinder. seems electronic. first seemed dead battery, put in new battery. fine for couple of days. then dashboard warning signals, oil, battery, brakes, and airbag, start going on. then...


Have your alternator checked. Most auto supply places do this at no charge. Multiple dashboard warning lights usually indicate alternator problems.

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1983 ford bronco 302 engine wont stay running after jumped


keep in mind, your engine use both source of power to run, one from the battery and one form alternator. If the alternator is good, your engine should stay running regardless if the battery is good or bad, the alternator should keep the engine running. It sound like to me the alternator is faulty not charging your battery or keeping your engine running, even though the alternator is brand new does not mean is good. My guess I would take the alternator back and get another one. the reason why your car ran for 25 min and die it has no source of power to keep the sparks going although the alternator should keep the engine running and at the same time charging the battery but is not.

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