Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

Drained battery after a week

Thread Tools
 
Search this Thread
 
Old Oct 4, 2009 | 10:15 AM
  #1  
Big Z's Avatar
Big Z
Thread Starter
|
New User
Joined: May 2009
Posts: 2
Likes: 0
Drained battery after a week

Hello, and thank you for all of the info you provide. I did a search on batteries and did not find an answer that I haven't already tried.
Situation:
2000 F-250, 7.3 diesel
The truck will not start after sitting for a week. I replaced the alternator 3 months ago and the batteries 2-3 years ago. I have had the alternator and batteries checked and both are performing correctly. My problem is that once the truck sits for a couple of days, it will not start because it does not have enough turning power to get it going. It turns fairly quick, but not enough to fire. Once I jump it and drive it for 20 minutes it is fine. I am not very good at tracking shorts (which is what I believe is going on) so are there any other things I should look at before I take it into a repair shop?

Thank you in advance for your thoughts.
 
Reply
Old Oct 4, 2009 | 11:34 AM
  #2  
weyland426's Avatar
weyland426
More Turbo
Joined: Jul 2007
Posts: 523
Likes: 1
From: Indiana
if you have the proper meter, you can do an amperage check of the circuits as they enter your fuse panel/power distribution box. this won't necessarily tell you exactly, but could help narrow down the possiblilities.
 
Reply
Old Oct 4, 2009 | 12:59 PM
  #3  
BobbyDiesel71's Avatar
BobbyDiesel71
Postmaster
Joined: Apr 2005
Posts: 2,759
Likes: 0
From: round rock, tx
on our diesel trucks, the engine needs a lot of power to crank starter and heet up the glow plugs. I would check the glow plug relay and make sure it is working properly.
You can have the batteries load tested/alt retested too. Both batteries have to be in good working conditon or the bad one will kill the good one.
 
Reply
Old Oct 4, 2009 | 02:58 PM
  #4  
87 F-150 I6's Avatar
87 F-150 I6
Posting Guru
20 Year Member
Photogenic
Joined: Dec 2005
Posts: 1,334
Likes: 0
From: Parker, CO
I would load test the batteries, just because your alt was replaced 3 months ago doesn't mean it could not go bad that fast. I would clean all battery connections and grounds and see how the batteries are.
 
Reply
Old Oct 4, 2009 | 09:02 PM
  #5  
bayou barataria's Avatar
bayou barataria
Posting Guru
Joined: Jul 2007
Posts: 1,543
Likes: 0
Club FTE Silver Member

Do you have access to an electrical meter with an amp clamp? Check to see if there is a current draw from the vehicle with the key off, sounds like it may be a drain or short cir.
 
Reply
Old Oct 5, 2009 | 07:25 PM
  #6  
Big Z's Avatar
Big Z
Thread Starter
|
New User
Joined: May 2009
Posts: 2
Likes: 0
Thank you for the responses. I Just tested the alternator, and also had the batteries tested. So I don't think they are the problem. I think I will get a volt meter and learn how to diagnose a short.

Again, thanks for your help...
 
Reply
Old Oct 5, 2009 | 08:46 PM
  #7  
bayou barataria's Avatar
bayou barataria
Posting Guru
Joined: Jul 2007
Posts: 1,543
Likes: 0
Club FTE Silver Member

You need an amp meter to measure voltage flow.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
deshet1980
2007 - 2014 Expedition & Navigator
6
May 24, 2017 04:13 PM
89danford
1987 - 1996 F150 & Larger F-Series Trucks
1
Apr 9, 2015 01:04 PM
fixit5561
1997 - 2006 Expedition & Navigator
10
Aug 21, 2010 03:11 PM
fordinmudd
Electrical Systems/Wiring
4
Oct 18, 2006 04:21 PM
Hurricane_Niner7
1999 - 2016 Super Duty
6
May 12, 2003 10:15 PM




All times are GMT -5. The time now is 04:21 PM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE