Go Back   Ford F150 Forum - Community of Ford Truck Fans > Ford F150 Forums > General F150 Discussion
Sign in using an external account
Register Forgot Password?


Welcome to F150 Forum!
Welcome to F150 Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, 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 free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 08-03-2008, 11:46 AM   #1
Grampajac
 
Join Date: Jul 2008
Location: Louisville, kY
Posts: 8
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default Charging Problems

I posted a few days ago, and received some great advice. After taking that advice, I am now needing some more steps to locate the problem. (recap) New batt., Alt tested good, batt drains in a couple of days if left connected. I tested the batt unconnected it was 12.34v. batt fully connected tested 12.17v. started eng. no other load 14.79v, loaded w/air, radio, lights etc, read 12.15v.

Amps from neg post to neg lead eng. off, 3.25 amps. I started pulling all the fuses, one at a time, and amps read 3.25 till I pulled number 8, (inter lights, radio) and the amps fell to 1.37. After pulling the rest, it still reads 1.37 amps.

I probably should take it to the shop, and let the professionals look at it, but now it's become PERSONAL.

Hope that some one has a few more ideas for me....

grampajac
Grampajac is offline   Reply With Quote
Old 08-03-2008, 12:45 PM   #2
Senior Member
5 Year Member
 
Fast Hampster's Avatar
 
Join Date: Jun 2008
Location: Moscow, Russia
Posts: 1,150
Mentioned: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Fast Hampster Send a message via Skype™ to Fast Hampster
Default

Do you own your truck since it was new? I'm asking because i'm trying to figure out what extra electrical devices can be installed. You have 22.5Watt power consumption in the cab, it's close to a big lamp (like one in a front turn signal), and you have 16Watt consumption for some unprotected circuit. May be you have an alarm system or sound amplifier installed ? Does your stereo unit turn off when you remove the key from ignition? 1.4 Amps is very little for a shortcut current.
__________________
There are three ways to do it - good one, bad one and russian one
Fast Hampster is offline   Reply With Quote
Old 08-03-2008, 01:03 PM   #3
Grampajac
 
Join Date: Jul 2008
Location: Louisville, kY
Posts: 8
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I have had the truck since 1994. All original still. Same radio, that turns off with key. No alarm, no extra electrical items added. I took out the radio last week to see if possibly there was a wire shorting out nothig showed up....

grampajac
Grampajac is offline   Reply With Quote
Old 08-03-2008, 01:48 PM   #4
Senior Member
5 Year Member
 
Fast Hampster's Avatar
 
Join Date: Jun 2008
Location: Moscow, Russia
Posts: 1,150
Mentioned: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Fast Hampster Send a message via Skype™ to Fast Hampster
Default

Let's try it from another end then. Do all of electrical items work properly? Including cab buzzer, horn, reverse lights, hazard lights and wipers/windshield washer? My guess is there's some stuck relay or something switched by (-) somehow gets power, so something is working all the time in silence. It can't be just a relay - it consumes only about 0.3-0.4 amps by itself. I can't figure out what it can be, because all circuits see, to be protected by fuses. Anyway try to remove all the relays and measure the current - just in case.
__________________
There are three ways to do it - good one, bad one and russian one
Fast Hampster is offline   Reply With Quote
Old 08-03-2008, 02:29 PM   #5
Grampajac
 
Join Date: Jul 2008
Location: Louisville, kY
Posts: 8
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Checked the horn and other items, all work, (except that the door open and seat belt bell is so faint, you can barely hear it). I had to put the #8 fuse back in to check items though.....

Grampajac
Grampajac is offline   Reply With Quote
Old 08-03-2008, 04:52 PM   #6
Senior Member
5 Year Member
 
Fast Hampster's Avatar
 
Join Date: Jun 2008
Location: Moscow, Russia
Posts: 1,150
Mentioned: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Fast Hampster Send a message via Skype™ to Fast Hampster
Default

I can't stop thinking about your truck... Did you check the body grounding connection? Try to put a jumper wire or any other wire between battery (-) and body grounding connector or any metal body part without any paint. At that time current can be measured in a (+) battery circuit.
__________________
There are three ways to do it - good one, bad one and russian one
Fast Hampster is offline   Reply With Quote
Old 08-03-2008, 04:59 PM   #7
Senior Member
5 Year Member
 
Join Date: Feb 2008
Location: Henderson, NV.
Posts: 4,636
Mentioned: 0 Post(s)
Thanks: 0
Thanked 16 Times in 16 Posts
Feedback Score: 0 reviews
Default

Back in town, been off since thursday spending time with two grandsons. Had a great time but very tiring. Need the rest. According to the posts, you are using the ammeter correctly. Continue the process of elimination, don't forget the fuseable links. The 3.25 amp draw is excessive. Really like Pavel's (Fast Hampster) reverse thinking attack as to the problem. You said the door warning and seat belt warning is barely heard. How long has that been going on? If quite awhile, chances are their not our problem. Gut feeling says some system with keep alive memory is the culprit. Get back with you again tomorrow.
Good old Bill is offline   Reply With Quote
Old 08-05-2008, 05:36 PM   #8
Grampajac
 
Join Date: Jul 2008
Location: Louisville, kY
Posts: 8
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

I don't know if it is anything or not, but I take the neg cable off when I park my truck each day. Each time I hook it back up, I hear a noise (kind of sounds like fuel pump coming on), for just about 5 seconds. Also the door and seat belt started about the same time as the pull on the battery started. Just thought I throw these in, case it made a difference.
Grampajac is offline   Reply With Quote
Old 08-05-2008, 06:23 PM   #9
I Voted For Bill and Opus
5 Year Member
 
transmaster's Avatar
 
Join Date: Nov 2007
Location: Cheyenne, Wyoming
Posts: 2,039
Mentioned: 0 Post(s)
Thanks: 0
Thanked 5 Times in 5 Posts
Feedback Score: 0 reviews
Default

That sounds like a bad ignition switch. The 412 Volkwagen was infamous for this problem and it behaved just like the troubles you are having. unplug the ignition switch and see if this current draw doesn't go away.
__________________
My Carbon foot print is 57 tons per year, and that doesn't count my fart gas. I spend my carbon offset money on my 1995 F150 Flareside with a carbon spewing 5.0L V8.
transmaster is offline   Reply With Quote
Old 04-20-2009, 10:52 PM   #10
Junior Member
 
Join Date: Apr 2009
Posts: 3
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default 1977 f150 ranger xlt charging problems

Hi to all

I am new to the group but have a problem the same as this one, the truck runs several trips around town for a couple of days and then starts running lumpy, and finally dies and wont start at all, battery is totally dead and requires charging. It has a new alernator,solenoid and voltage regulator. Which side of the solenoid should the alternator lead be ?? maybe i got wires crossed somewhere. something somewhere is draining the battery. I am from the UK and not used to US 70's technology!

Help me please...

Mike
Cheyenne
car57 is offline   Reply With Quote
Old 04-20-2009, 10:52 PM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Super Charging the FX? twoodsak36 2004 - 2008 Ford F150 48 12-23-2008 08:08 AM
battery light on and charging low mister 1987 - 1996 F150 3 11-05-2008 10:09 AM
Charging Problem Grampajac General F150 Discussion 5 07-29-2008 08:53 AM
Not Charging? BajaDale 1987 - 1996 F150 8 06-29-2008 08:42 PM
1992 F-150 Charging Problem markerickson General F150 Discussion 1 10-08-2007 06:08 PM

 

The Mustang Source
All times are GMT -4. The time now is 12:19 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.5.2
Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.