Starting and charging problems with battery drain - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-05-2010, 08:46 AM
Member
 

Join Date: Mar 2009
Posts: 56
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Starting and charging problems with battery drain

I tried to jump my excursion yesterday and finally got it started. It ran fine and then I shut it off for the evening. I immediately metered the battery as it was resting and the voltage was 11.95. This morning I went out and metered it and it said 4 volts! Now I know no interior or exterior lights were left on as I double checked last night after shutting everything off. Is there a way to test and see if there is a short circuit? I was thinking of switching the Multimeter to amps to see if there was current draw and then individually removing fuses until the problem subsides. Anyone have any ideas? I really don't have the money right now to take it to a shop so this is something I need to fix on my own. Thanks agai.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 10-05-2010, 09:07 AM
Compression Ignition Addict
 

Join Date: Jan 2009
Location: Harrisville UT
Posts: 556
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Have the alternator checked, maybe the voltage regulator is stuck open.
Reply With Quote Quick reply to this message
  #3  
Old 10-05-2010, 09:20 AM
Member
 

Join Date: Mar 2009
Posts: 56
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Thats a good call but I already did that two days ago and autozone claims it passed their test with flying colors. I did meter the output voltage a few times and it was all over the place at idle; ranging from 12.6volts to 13.5 volts and it peaked at 13.9 volts when I had my lady rev the engine to 2000rpm.
Reply With Quote Quick reply to this message
  #4  
Old 10-05-2010, 09:49 AM
Compression Ignition Addict
 

Join Date: Dec 2009
Location: Smyrna,DE
Posts: 322
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The batts should be closer to 12.5 when you first shut it off, the alt should be close to 14.5. If it was me I'd unhook the alt overnight & check batts in the am. Sounds like alt to me
Reply With Quote Quick reply to this message
  #5  
Old 10-05-2010, 11:21 AM
Compression Ignition Addict
 

Join Date: Jan 2009
Location: Harrisville UT
Posts: 556
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Your alternator will still charge fine, but if the regulator is stuck open it will let the batteries drain. I went through the same thing with mine and thats what it ended up being. Bought a new alternator and all is good. Hope you get it fixed soon.
Reply With Quote Quick reply to this message
  #6  
Old 10-05-2010, 11:25 AM
Compression Ignition Addict
 

Join Date: Jan 2009
Location: Harrisville UT
Posts: 556
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Quote:
Originally Posted by cj45lc View Post
The batts should be closer to 12.5 when you first shut it off, the alt should be close to 14.5. If it was me I'd unhook the alt overnight & check batts in the am. Sounds like alt to me
I should have paid more attention to this. If your not above 14.0 volts your alternator is junk. These trucks are pickey from what I've noticed about voltage output.
Reply With Quote Quick reply to this message
  #7  
Old 10-05-2010, 11:26 AM
Member
 

Join Date: Mar 2009
Posts: 56
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Thanks for all of your help guys
Reply With Quote Quick reply to this message
  #8  
Old 10-05-2010, 12:02 PM
Compression Ignition Addict
 

Join Date: Jan 2009
Location: Harrisville UT
Posts: 556
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
No problem. Welcome to the ORG
Reply With Quote Quick reply to this message
  #9  
Old 10-05-2010, 01:35 PM
Member
 

Join Date: Mar 2009
Posts: 56
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
What's a good brand of alternator to use to replace the existing one?
Reply With Quote Quick reply to this message
  #10  
Old 10-05-2010, 02:14 PM
Compression Ignition Addict
 

Join Date: Jan 2009
Location: Harrisville UT
Posts: 556
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Not AutoZone.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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
Display Modes

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



All times are GMT -8. The time now is 10:36 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors