67 impala battery draining - Impala Tech
Electrical & Wiring Troubleshooting electrical problems

LinkBack Thread Tools
post #1 of 6 (permalink) Old 04-21-2012, 03:35 PM Thread Starter
Join Date: Jun 2011
Location: tx
Posts: 10
67 impala battery draining

My dad tells me that everytime im done trying my impala that I have to unhook the battery because the battery is going to just drain. He says this is normal. But it doesnt to me. Who is correct? Thanks.
durx1 is offline  
Sponsored Links
post #2 of 6 (permalink) Old 04-21-2012, 07:18 PM
Join Date: Jan 2006
Posts: 12,895
Battery should hold a charge for weeks on end. You have something that is drawing current after the ignition switch is turned off. Either someone has installed an accessory like a stereo that isn't going through the fuse box or you have a short somewhere in your wiring (not uncommon in an old car since these where among the first to have plastic PVC insulation on the wires and copper work hardens gets brittle and cracks causing the remaining strands to carry a heavier load resulting in more heat that breaks down the insulation).

If it is a properly fused wiring problem you can find it by removing one fuse per night until you discover you have a fully charged battery in the morning. The last fuse removed will indicate what circuit is having issues and you can trace and test components with a multi-meter and a circuit diagram.

Big Dave
Big Dave is offline  
post #3 of 6 (permalink) Old 04-21-2012, 07:29 PM
Senior Member
Join Date: Jul 2008
Location: Michigan
Posts: 172
I'm with Big Dave. If you don't have a short, drain or other problem the battery should hold a good charge for weeks, even months. I started my 57 Chevy @ a month ago. The battery was in the car without being hooked to a charger or tender since I put it away for the winter last October. With a lot of gas pedal pumping, but no charger it started.
sz0k30 is offline  
post #4 of 6 (permalink) Old 04-21-2012, 07:31 PM Thread Starter
Join Date: Jun 2011
Location: tx
Posts: 10
I knew I was right. Honestly think hes too busy to help me. There is an aftermarket radio in there.(unfortunately) It is currently in protect mode. Related?
durx1 is offline  
post #5 of 6 (permalink) Old 04-21-2012, 07:41 PM
Join Date: Jan 2007
Location: Lewisburg, Ohio
Posts: 2,909
Anything that is on all the time can draw a battery down. Glove box light, Trunk and under hood light, Dome lights, Aftermarket radio systems.
dadstoy is offline  
post #6 of 6 (permalink) Old 04-21-2012, 08:00 PM Thread Starter
Join Date: Jun 2011
Location: tx
Posts: 10
might add that this is a recent problem.but now that you say it i think ive figured it out.we have been restoring the interior.The dash needs to be painted so the glove box is out. So it most likely is the glove box light then.
durx1 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Impala Tech forums, you must first register.
Please enter your desired user 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:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

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

For the best viewing experience please update your browser to Google Chrome