battery dying - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 04-14-2009, 08:36 AM
Registered User
Join Date: Mar 2009
Location: south dakota
Posts: 20
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
battery dying

i have a 03 monte ss as my daily driver. i have been having problems with the battery dying on me if i let it sit for a day or 2 untouched. i do not have hooked up that would drain the battery. i put in a new battery but that doesnt seem to help. hoping i could find the answer to what the problem could be....


Last edited by lemans'n'gal; 04-14-2009 at 08:38 AM. Reason: add information
Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 04-14-2009, 09:24 AM
cobalt327's Avatar
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Posts: 5,031
Wiki Edits: 1616

Thanks: 128
Thanked 616 Times in 565 Posts
Disclaimer- I am not in any way, shape or form, an electrician. Automotive or otherwise. So with that said, the following has helped me in the past:

One way to isolate where the current draw is coming from is to connect a VOM between the battery ground post and the chassis. Remove the battery ground terminal for now. Engine off, key off. Doors closed, hood light removed, if equipped. In other words, shut down the things that you can that use current.

See what the draw is.

Then by removing the fuses one by one, you will be able to determine what circuit is at fault. There are fuses both underhood and in the passenger compartment.

You can expect to see some draw from the circuits that supply the ECM, clocks, etc., but the guilty one should show up as a much larger draw.

Be sure you have a good, fully charged battery with good cables and the alternator is charging, to start with. If you're unsure about either, many part stores will check them both on the car for you- free.

Once you know what circuit it is, do the regular routine for finding a short. If you're unsure how to go about this, post back and I'm sure someone will lend a hand.

FWIW, in the past I've even seen a glove box light that wasn't turning off drain a battery, but this takes more time than what you're describing IF the battery is fully charged and is good. Same thing with an under hood or trunk light.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-14-2009, 09:49 AM
kleen56's Avatar
Registered User
Last photo:
Join Date: Oct 2006
Location: Santa Clarita CA
Posts: 802
Wiki Edits: 0

Thanks: 4
Thanked 6 Times in 6 Posts
It doesn't sound like there is a problem with the charging system but I would put a volt meter on the battery terminals anyways and see if the charging system is working properly. It should show at least 13.5 volts charging while the engine is running. If not, your charging system has a problem (alternator). If the chargine system checks OK, my guess is a short in the system, which is a real pain to find, especially with the wiring on a 2003 (there is alot of it). Not to discourage you, but if there is a short, I'd take it to a electronic diagnostic place where they can find the problem much easier than tracing wiring or replacing items. Just my 2 cents.
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
battery cables corvettetonybone Electrical 31 04-07-2009 05:07 PM
Roll Bar Install Advice Mustangsaly General Rodding Tech 12 12-02-2007 08:33 AM
Need help please with an electrical headake bowtieorbust Electrical 15 01-26-2006 03:01 PM
Spacers behind fan? moodier General Rodding Tech 14 10-06-2005 08:08 AM
dying battery lilbandit3 Electrical 1 02-02-2004 10:27 PM

All times are GMT -6. The time now is 08:25 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.