Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-28-2009, 03:46 PM
fosterinwy fosterinwy is offline
New User
 
Join Date: Sep 2009
Posts: 1
fosterinwy is starting off with a positive reputation.
Battery drain

Ihave 91 f150 xlt that just started to drain the battery when it is shut off. I replaced the battey (it was old) thinking it would not hold a charge anymore. The new battery was dead the next day. I charged the battery and now disconect the battery cable every time I park the truck and there has been no problem as long as I disconect the battery cable after I shut the truck off. Any ideas as to what the problem might be? Or where th start looking for the problem?
Reply With Quote
  #2  
Old 09-28-2009, 03:59 PM
BKS72's Avatar
BKS72 BKS72 is offline
Junior User
 
Join Date: Apr 2009
Posts: 78
BKS72 is starting off with a positive reputation.
That sucks - I had a '71 Bronco that did the same thing. My first step would be to disconnect the positive battery cable and hook up an amp meter between the battery positive post and positive cable with the key off. If something is hanging on, you should be reading something on your meter.

Start pulling fuses until the reading goes away. Once your meter zeroes, you've at least narrowed it down to which circuit is hanging (the last fuse you pulled).

Probably not going to be that easy with all the electronics on the newer ones, but you might get lucky.
Reply With Quote
  #3  
Old 09-28-2009, 04:00 PM
bigmacmonday's Avatar
bigmacmonday bigmacmonday is offline
Senior User
 
Join Date: Aug 2009
Location: Delta,UT
Posts: 382
bigmacmonday is starting off with a positive reputation.
With the keys out during this whole test unhook the negative battery cable from the battery. Take a meter that will read milliamps and hook it between the negative cable and negative battery post. If you are reading anything above 25 milliamps you have a parasitic draw. Now you need a second person. One of you hold the meter there and keep reading the milliamps while the other goes to the fuse box and starts pulling fuses one at a time. When the one that is drawing the power is pulled the milliamps will drop on the meter. This will be your culprit whether it be some kind of light or what have you. There should be a fuse map on your fuse box to tell you what each one is for. Your meter will not zero because there are always small things using up small amounts of power when you have the vehicle off like clocks and stuff but there will be a large drop when you find the one that is pulling enough power to drain your battery. If you have more than 25 milliamps draw your battery will be dead or almost dead after sitting all night.
__________________
'94 f-350 Crew Cab 7.3 Powerstroke, 5-speed, 254k miles, superchips tuner, intake, auto meter gauges, 3" Diamond Eye DP & 4" exhaust, 17" am racing rims

'88 F-250 7.3 IDI Diesel, 5-speed, stock, 99k original miles, runs smooth as butter. Good ol' international.
Reply With Quote
  #4  
Old 09-28-2009, 06:16 PM
ArdWrknTrk's Avatar
ArdWrknTrk ArdWrknTrk is offline
<---Dog is my co-pilot
 
Join Date: Jan 2008
Location: EXTREME southwest CT
Posts: 19,070
ArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputation
Check the plug that goes into the alternator.
I had a short there that took me two days to find.
The 2G alternators are known for this and a replacement plug is readily available in the aftermarket.
(they're also known to start fires)

See this post: Ford Truck Enthusiasts Forums - View Single Post - electrical draw
__________________
Jim (AKA Princess Glitzhooter)
'87 F-250
460, 4V 0-80457s, Edelbrock Intake, Saginaw PS Pump, BW 1356 4x4, 4.10 10.25", 130A 3G Alt., PMGR starter, ZF-5, - Lil' Red
http://i246.photobucket.com/albums/gg117/donjamer/FTE%20Pics/blumax500-1-1.jpgFTE Fraternity of Blue Max
Reply With Quote
  #5  
Old 09-28-2009, 07:02 PM
carcrazy32000 carcrazy32000 is offline
New User
 
Join Date: Sep 2009
Posts: 2
carcrazy32000 is starting off with a positive reputation.
change the relay
Reply With Quote
  #6  
Old 09-28-2009, 07:10 PM
carcrazy32000 carcrazy32000 is offline
New User
 
Join Date: Sep 2009
Posts: 2
carcrazy32000 is starting off with a positive reputation.
i have a 89 fi50 that keep draining the battery dead.it was the relay on mine
Reply With Quote
  #7  
Old 09-28-2009, 08:00 PM
BKS72's Avatar
BKS72 BKS72 is offline
Junior User
 
Join Date: Apr 2009
Posts: 78
BKS72 is starting off with a positive reputation.
Quote:
Originally Posted by ArdWrknTrk View Post
(they're also known to start fires)
Now that is a handy piece of information
Reply With Quote
  #8  
Old 09-28-2009, 10:26 PM
Conanski's Avatar
Conanski Conanski is offline
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 20,587
Conanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud of
I have had repeated problems with the voltage regulator failing and creating a battery drain on my truck, I can find nothing else wrong with it so I'm chalking it up to the cheap regulators used on rebuilt alternators these days.
__________________
Paul (Conan) O'Brien

1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
Reply With Quote
  #9  
Old 09-29-2009, 03:02 AM
ArdWrknTrk's Avatar
ArdWrknTrk ArdWrknTrk is offline
<---Dog is my co-pilot
 
Join Date: Jan 2008
Location: EXTREME southwest CT
Posts: 19,070
ArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputationArdWrknTrk has a superb reputation
Paul,

No doubt the regulator can fail to ground, and it is a good place to start!

I had tried unplugging my alternator overnight when I had the mysterious drain.
When that didn't work the decrepit plug was changed and solved the problem.

Now I have a 3G, and don't worry about it any more.
__________________
Jim (AKA Princess Glitzhooter)
'87 F-250
460, 4V 0-80457s, Edelbrock Intake, Saginaw PS Pump, BW 1356 4x4, 4.10 10.25", 130A 3G Alt., PMGR starter, ZF-5, - Lil' Red
http://i246.photobucket.com/albums/gg117/donjamer/FTE%20Pics/blumax500-1-1.jpgFTE Fraternity of Blue Max
Reply With Quote
Old 09-29-2009, 03:02 AM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
please help need my truck runnin trumsey07 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 8 05-12-2011 10:27 PM
Newbie Positive ground question Pursual 1961 - 1966 F-100 & Larger F-Series Trucks 24 04-26-2010 07:11 PM
generator troubleshooting 64fordf100292 1961 - 1966 F-100 & Larger F-Series Trucks 5 07-01-2007 01:07 PM
Camper Battery charging kidoo Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 8 03-06-2006 05:57 PM
charging / battery problem kochy54 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 15 04-21-2002 06:31 PM


Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks

Tags
1999, 2000, 99, batteries, battery, drain, drainage, drained, electrical, f150, f250, ford, problems, sterling, truck, trucks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump



All times are GMT -5. The time now is 08:18 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup