Over voltage problem - Chevy Impala Forums
Chevy Impala 7th Gen Discussion W-Body 2000-2005. Discuss all Chevy Impala 7th Generation Performance and Technical Discussion here.

User Tag List

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 04-23-2011, 12:08 PM Thread Starter
Junior Member
loonysalmon's Avatar
Join Date: Apr 2011
Location: UP, MI
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via Skype™ to loonysalmon
Over voltage problem

Hey all, I had a bit of a problem with my 2002 impala not starting so I decided to get a jump as I figured the battery had drained out after sitting for the past month. I got a jump and was checking my voltage across the battery terminals and was surprised when I saw that it was showing +23.2V.

So right then I disconnected the battery and went to take the connectors off when the positive terminal started pulling off (mind you these are sidepost batteries). I cleaned out the inside of the positive terminal because there was a tonnnnn of corrosion but after cleaning realized that the battery was actually leaking. So of course I got another battery and checked voltage across terminals before putting it in and it was sitting at 12.5. I tossed it in the car and started it up to find out that afterwards it was putting out 19 volts again.

Largely this leads me to believe that there is a problem with a voltage regulator, however I have no idea what to look for or replace, other than knowing that it is related to the alternator.

Can you guys help me diagnose what the actual problem is? I have only today to fix this problem because I have a final exam at school on Tuesday and need monday to drive up there. Please help me with this ASAP. I've been a member of the CB7tuner forums for a number of years and they were always helpful to people; I am sure this family is the same!

2002 Impala 3400
loonysalmon is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Chevy Impala Forums 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:


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.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Odd Problem kingnutin 1st - 5th Gen Engine Performance 3 03-19-2011 10:58 AM
Charging voltage Verne Mechanical and Electrical Problems 4 03-10-2011 12:11 PM
Has anybody had this problem before? banglinj Automotive Discussion 11 07-28-2009 12:25 AM
hello and a problem molbly Chevy Impala 7th Gen Discussion 7 03-13-2009 06:29 PM
HELP!!!Very Odd Problem With My 96 LT-1 arosado Automotive Discussion 1 11-06-2008 04:19 PM

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