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Discussion Starter #1
So Sunday after noon was the last time I was in the car. went out this morning to make a quick jot to the post office and the car was dead.

Dead as in no power, ding-ding with key inserted, no dome light, nothing! I have never seen or heard of a battery going that completely dead in 2 days. Never had any trouble with the charging system.

Checked the battery with a test light, that's all I have, and it came on.

What to check and where please :dunno:
 

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A test light doesn't require that much voltage to light up. Take it to AutoZone or other auto parts store and have them bench test it.

I've had a battery just stop working before, but it left subtle clues beforehand (ie- radio presets and clock resets every time the engine was started).
 

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My old Sable had the battery die within three hours of me parking the car. Stopped at my parent's house after driving an hour from Philly...sat inside for a couple hours with my then girlfriend, now wife, came out to drive her home...nothing.

Jumped it and got it started. Went to get a new Diehard Gold the next day, and I never had another problem.

JR
 

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Discussion Starter #4
Well, just to play it safe, I put the battery on the charger to be sure it has some power to test!

Was getting cold and dark by the time I had time to fool with it, we see in the morning.

BTW, seems there is some sort of mega fuse under the hood?
 

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My Taurus does this once in a while. It first did it to me during Black Friday 2 years ago. It was quite odd, the car was totally dead. No dinging, lights, I couldn't open my trunk, heck, even the remote wasn't working!

Just out of sheer desperateness, we opened the trunk with the key itself and proceeded to SLAM it shut, I'll be darned if that freaking car didn't start right up! :rofl2:

That has been the fix for me! When the car is dead, just SLAM the trunk! :werd:
 

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Discussion Starter #6
My Taurus does this once in a while. It first did it to me during Black Friday 2 years ago. It was quite odd, the car was totally dead. No dinging, lights, I couldn't open my trunk, heck, even the remote wasn't working!

Just out of sheer desperateness, we opened the trunk with the key itself and proceeded to SLAM it shut, I'll be darned if that freaking car didn't start right up! :rofl2:

That has been the fix for me! When the car is dead, just SLAM the trunk! :werd:
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You have got to be kidding me :huh:
 

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Well, just to play it safe, I put the battery on the charger to be sure it has some power to test!

Was getting cold and dark by the time I had time to fool with it, we see in the morning.

BTW, seems there is some sort of mega fuse under the hood?
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There is a Mega-Fuse under the hood. If I recall correctly, it's a 250-amp fuse, and it's located in the fuse-box in the engine compartment. The battery and alternator feed that fuse box, and the fuse protects the entire system.

JR
 

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My old Sable had the battery die within three hours of me parking the car. Stopped at my parent's house after driving an hour from Philly...sat inside for a couple hours with my then girlfriend, now wife, came out to drive her home...nothing.

Jumped it and got it started. Went to get a new Diehard Gold the next day, and I never had another problem.

JR
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Same thing happened to me about 6 or so years ago in my old 91 Escort..... started / ran fine and about 5 hours later was 100% dead. Batt developed a shorted cell, and that batt was only about 3 years old. Many years ago, I got a Sears Diehard for one of my Mustangs that was bad right out of the box.
 

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<div class='quotemain'>
My Taurus does this once in a while. It first did it to me during Black Friday 2 years ago. It was quite odd, the car was totally dead. No dinging, lights, I couldn't open my trunk, heck, even the remote wasn't working!

Just out of sheer desperateness, we opened the trunk with the key itself and proceeded to SLAM it shut, I'll be darned if that freaking car didn't start right up! :rofl2:

That has been the fix for me! When the car is dead, just SLAM the trunk! :werd:
[/b]
You have got to be kidding me :huh:
[/b][/quote]

I am dead serious! This car never ceases to amaze me with ridiculous problems! :bowdown:
 

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Discussion Starter #10
Well, morning has come and the battery was fully charged.

I installed the battery and started the car, the "mega fuse" is good :) I went directly to the local shop and had them test the battery and the charging system.

The battery and the charging system checks out okay, what next?

BTW, thanks for the replies thus far.
 

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Of course the battery checked out good. You just got done charging it.

If it is dead again in a couple of days then either there is a substantial current draw when the car is off or the alternator is not goo.

Neither will be traced down with just a test light.

Also the MEGA fuse is 175A and is to protect the alternator output circuit only.
 

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There is a Mega-Fuse under the hood. If I recall correctly, it's a 250-amp fuse, and it's located in the fuse-box in the engine compartment. The battery and alternator feed that fuse box, and the fuse protects the entire system.

JR
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+1 on checking the fuse. Do not kill your battery by jumping and charging it when it may not be the issue. Look at all the fuses under your hood and in the fuse box. I had the same problem with my Nissan Frontier a while back and it turned out to be a fusible link under the hood. You can inspect these visually. Just look for the fuse that has the broken connection.
 

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The MEAG fuse sometimes gets corroded too. There is also a 30A fuse for the alternator field in the engine box.

No fuseable links though.
 

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<div class='quotemain'>
My old Sable had the battery die within three hours of me parking the car. Stopped at my parent's house after driving an hour from Philly...sat inside for a couple hours with my then girlfriend, now wife, came out to drive her home...nothing.

Jumped it and got it started. Went to get a new Diehard Gold the next day, and I never had another problem.

JR
[/b]
Same thing happened to me about 6 or so years ago in my old 91 Escort..... started / ran fine and about 5 hours later was 100% dead. Batt developed a shorted cell, and that batt was only about 3 years old. Many years ago, I got a Sears Diehard for one of my Mustangs that was bad right out of the box.
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remember, if your battery is NOT a maintenance free battery, you are supposed to check and fill with Distilled water the 6 cells. If they get too low on water, then they can and will develop shorted cells. The shorted cells can and will play havoc with the electricity coming from the battery to the rest of the car.
 

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Just remeber to fill to the proper level. Better to have it a little low than too much.

Too much will cause the acid to spew out the vents. This not only covers the top of the battery with acid that provides a path between both post and will drain the battery but when the battery is again topped off the specific gravity will be even lower making the battery weaker.
 

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Discussion Starter #16
Great info guys, and thanks for the tips!

As far as the shop testing the battery, they did what he called a load test. But I agree, I will observe what happens.

I was scouting around the board and found a discussion on doing a "parasitic draw test", yet at this time I don't have digital tester for the m-A. But if that battery dies again in 2 days I'll be getting one!

Slam the trunk, that'l do it :rofl2: ....not laughing at you, just with you!
 

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Slam the trunk, that'l do it :rofl2: ....not laughing at you, just with you!
[/b]
I know it sounds ridiculous...but hey, it works for me!
 
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