General 1967-2002 F-Body Tech For general F-Body discussion that does not fit in any other forum.
For F-Body Technical/Information Discussion ONLY

Something is draining my battery

Thread Tools
 
Search this Thread
 
Old Jan 31, 2007 | 11:05 AM
  #16  
Guest47904's Avatar
Guest
 
Joined: Sep 2004
Posts: 0
Originally Posted by LT1Squirrel
11.89 volts at the battery with them in and 12.01 w/o...any other ideas as to what it can be?
Way WAY too low. If, and you still haven't convinced me it's good, the battery is good, something is drawing current way too much. You haven't found it yet.

Use a voltmeter set as an Ammeter. Disconnect the ground wire from the battery. Hook the positive lead from the meter to battery cable and hook the negative meter lead to the negative battery terminal. With everything shut completely down, see how much current you are drawing.

It should not show more than about .01 amps. At this point start pulling fuses 1 at a time and then replace it before moving to the next one until you get that low. Leave the radio and PCM fuses for last.

A few notes of caution. If you have an amp installed, start there. Check any bulb you can't see in plain sight like the glove box and the console. Many times these become dislodged and stay on all the time.

Start with a high scale on the meter. Most have 10amp scale. Then if you need to, lower it until you get a reading. If you over load an ammeter, it will blow the protective fuse and it will not read. Therefore if you are not getting a reading from the ammeter, double check the fuse. Many folks have inadvertently thought they were reading 0 current when infact the meter was defective. It is for this same reason that you start high and work down in scale.

I forgot to add to measure the voltage across the battery right after you remove the battery cable. If it is less than 12.6 volts, the battery has a problem.

Last edited by Guest47904; Jan 31, 2007 at 04:39 PM.
Old Feb 1, 2007 | 08:28 AM
  #17  
KAO 91's Avatar
Registered User
 
Joined: Sep 1999
Posts: 53
From: Waldorf MD USA
Originally Posted by smithtim
possibly could have scratched a wire and torn away the plastic casing insulates the wire
If it is a speaker wire that is grounding, wouldn't it only draw on the battery when power is being sent to the speaker? I would think that when the car is off, the radio would prevent power from going to the speaker and thus a short beyond the head-unit would not be a problem. Anyone know more about this?

I believe I've already identified that the short is some where on the PWR ACCY fuse. Would that include any of the wires/connections that go the control switches on the door (i.e., door locks, windows, mirror controls, etc.)?

Thanks for any replies!

Last edited by KAO 91; Feb 1, 2007 at 08:35 AM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Formula Steve
LT1 Based Engine Tech
45
Sep 19, 2023 08:31 AM
68camaroboltz
Fuel and Ignition
2
Oct 5, 2015 01:46 PM
jackpawt883
LT1 Based Engine Tech
7
Sep 10, 2015 08:53 PM
weedog
LT1 Based Engine Tech
10
Aug 15, 2015 08:23 PM




All times are GMT -5. The time now is 07:03 PM.