Question about 1995 GMC Sierra C1500

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Hey i am having a problem with power being drawing and killing my battery as well as killing cells in the battery ?? i have a new alternator and new battery. This is my third battery !!

So ya its a 1995 K1500 with a 350 - 5.7 letter keeps taking power from the battery and killing the cells in the battery .. motor has been replaced , new alternator,battery, has command start. but i disconnected it to see if that was a problem and it was not the problem ! so i'm at a stop till i can get help figuring this on out lol

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You need to check for a draw. This can be done with a volt meter capable of reading amperage or a low amp probe.

If you have either of these I can help you further. Just let me know.

Posted on Feb 14, 2012

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2 Answers

Several modules are always powered. What is the typical current drain on the battery when the key is OFF?


Vary low should never make no start conduition.
Sounds like you have a muility meter to ask for voltages .
Try this disconnect the negitive from the battery .Set the meter on the 20 volt DC scale .Go red lead to posivite and black to engine block or any known solid ground .If you read voltage something is shorting
If the voltage 2 -3 volts it could be switches lights ect .If its 5 volts or over then its something that draws a lot of power like a bad motor .
At any rate if you read voltage pos to gr with gr disconnect from bat their is a short .
You can try pulling fuses 1 at a time to see when it stops .This will tell you what circuit the problem is on and sometimes the starting motor will short interinaly this will kill the bat fast

Apr 16, 2015 | 2003 Chevrolet Avalanche

1 Answer

Positive negative polarity


potentially two problems It sounds as if you have a "Dead Cell" in your battery. If your battery light is not on, or comes on just before the car dies, it is not your alternator.
If your battery has a dead cell, it will pull the energy from the existing cells and kill your battery in the same manner that you are describing.
Have you tried a new battery? If so, it is your alternator....but it doesn't sound like it. You may also have a direct short. Pull the negative terminal off the battery, wait a few seconds and touch it back to the post. A little spark is normal as it is drawing current to power the system; However if there is a significant spark or draw, you have a direct short. In short, test the battery, (most any chain auto parts stores will do this free of charge) If the battery is good, have the alternator checked for functionality. if that is good, you may have a direct short or a computer problem. Hope this helps.

Dec 17, 2013 | Saab Cars & Trucks

1 Answer

Battery keeps draining even after replacing alternator on 94 gcl 5.2 any ideas


Try this, disconnect the alternator and see if it still drains the alternator, you say new but i know it is rebuilt, and some rebuilders do a terrible job, this is esp true of the so called discount auto parts stores (that is a joke as they often charge more than a dealer) such as O'reilly and others. Buy a Mopar rebuilt if the alternator turns out to be the source of the battery draw down. Also make sure no light inside the truck are on like sun visor lights and so on. Have the battery tested shorted cells cause a draw and will kill the battery overnight, don't over testing new parts as they can be bad, found this out the hard way early in my mechanical career.

Nov 01, 2012 | Jeep Cars & Trucks

1 Answer

Flat batary


Do you drive it everyday? Does it have any extra stuff on it like alarm system, anti-theft device? Get one of those floaty ball things that check the specific gravity of your battery acid. One dead cell is a dead battery. They will tell you a lot. And just because a battery is new doesn't mean it is good. I have seen a lot of good batteries dead! Also, check the water in the battery. also, check the alternator, it can't be charging. The light on? Something is killing your battery. If it isn't being drained, it isn't being charged up either. The clock can kill a battery in a few days. Check this stuff out. Hope it helps.

May 08, 2010 | 1994 Nissan Pathfinder

1 Answer

1988 Chev half ton kills battery. Put in new battery and starts right away. Ran it for about 20min then shut it off. Tried to restart and battery is completely dead. Needs boost to restart.


Have your starting system checked for starter draw.If the starter is drawing to many amps it will draw the battery down very quickly.Also have your charging system load tested to make sure the alternator is charging properly.Hope this helps.Good luck.

Mar 16, 2010 | 1988 Chevrolet C1500

2 Answers

95 p/u why would a brand new alternator fail after about two months?


Hi:
Auto parts do fail, sometimes too soon, But some of the reasons a alternator could fail prematurely, would be if you somehow had a dead battery, and jump started the truck, sometimes the full current draw to charge a dead battery can kill an alternator. An overtightened belt can cause the alternator bearings to overheat too, killing it.

Nov 12, 2009 | 1997 Nissan Pickup

1 Answer

Battery dead every morning


Something is shorting out (drawing power but not returning it to the battery)
Make sure you don't have any accessories plugged in and running or anything else running or on when you go to bed at night as this would draw down the power!
I'm assuming you have to jump start it every mourning.
Is that correct?
If so the new battery and alternator will be strained and go again soon!
Go to an auto parts store like Advanced Auto Parts and have your battery and alternator tested (they do this for free) and may be able to verify that you have a power draw somewhere!
A jury rig fix would be to put a battery disconnect (available at any auto parts store and pretty easy to install) at the terminal to the battery and disconnecting every night but that won't fix the power draw.
What was the original problem that led you to change the battery and alternator?
jack
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Feb 19, 2009 | 2001 Dodge Durango

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