Question about 1992 Ford F250

2 Answers

Battery drains in a few days.

I have an electrical short somewhere because the battery drains over a few days. When I put a test light in line with the negative, the light stays on with a faint pulse. When I pull fuse #13 (Stop/hazard; Anti-lock brake; memory/power; Speed control; Stop sense for :Electronic Engine control; Anti lock brakes) the test light will go out after a few seconds. I don't know what the stop sense is or what "speed control" is? I have the anti locks disconnected and steering column torn apart. What is "memory/power"? Seems like a capacitor of some kind hold a charge. Once I turn key back on then off, my test light stays on and pulses until I pull out fuse again. When I hook up battery it arcs. New alt and key switch. Can U Help????

Posted by on

  • Lloyd Jacobson
    Lloyd Jacobson Apr 06, 2017

    Yes ,had the same thing happen to mine.it was the positive battery cable. It rubbed on the AC lines,or something in that area and shorted out

×

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 37 Answers

Disconnect the pos while running- if it still runs the alternator is working to run it. If not get the alt diodes tested, it is possible it is causing a drain while sitting. If it is working, check to see if it is overcharging because that can cause the battery to break down- "sulphate"' the plates and cause an internal short that will drive you crazy trying to find the short in an automobile component. If you just make short trips you could just be not charging it enough do deep cycle it. Have the batt tested- its usually free after all. In my part of the country I've never seen a modern 8yr batt last longer than 3 1/2 years, so don't assume it's good.

Another problem is you might have an internal short

Posted on May 14, 2009

  • Annimater
    Annimater May 14, 2009

    Forgot to mention ECM clock and eprom use a little bit of juice to keep memory so that you won't run in open-loop mode when you first start your vehicle. Most cars can reset & clear codes by disconnecting the batt.- because it cuts off the power to the memory. Radio with LED clock does the same. It might even be enough to cause a small spark but a millivolt drain is normal and will take months to drain a healthy battery. Clean your battery too it can discharge from a dirty top.



  • Annimater
    Annimater May 20, 2009

    Alternator "Diode." Unless Ford has a different name for theirs.

×

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Expert
  • 89 Answers

Usually what happens when the alternator has a faulty "conductor" i think its called;)
http://autoforum.classifieds1000.com/Ford-F250/electrical_short

Posted on Nov 07, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Radio stay on after Jeep is turned off


The remedy consists of finding out the real cause of rapid battery discharge. It isn't the clock. Could be a failing starter.

Dec 24, 2013 | Jeep Cars & Trucks

1 Answer

Car battery keeps dying


Myguess is that you have an electrical short which is causing a drain on the battery. The way to check this is to get a 12 v test light. Unhook the negative side of the battery. Hook the test light up between the negative battery post and the battery cable. If the light comes on, You have a short/drain. To find where the short is, you leave the test light hooked up. Then you start pulling fuses until the light goes out. However, your car stereo needs to be completely unhooked before you do this test because most stereos have a constant electrical source so that the clock stays accurate and the memory stays active so your programed stations don't get lost. GOOD LUCK> Keith Lewis-Dayton,Wa.

Jul 09, 2012 | 2000 Ford Mustang

1 Answer

2000 chrysler sebring wont start


Alternator ? Charging system problem ? Do you know how to do automotive electrical testing ? Because that is what it's going to take to find the problem ! Your best bet take it to a qualified repair shop ! Or learn how to do electrical trouble shooting ! Do you know what a wiring diagram is ? how to use one to find point's in a electrical circuit to test at ?
Electric Testing Techniques You Need to Know
Motor Age TST New Battery Starting Charging System Testing Techniques
Did you check for blown fuse's ? Blown fuse's happen because of shorts .
Finding The Source Of Electrical Shorts In Your Car

Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts



Jun 03, 2017 | Cars & Trucks

1 Answer

How to find electrical short if not started in about 2 days battery is drand dead. replaced battery with new one.


The best test for this is.... Well before starting this test make sure your doors are closed and everything is off. Then ...Take (disconnect) one end of the battery cable, the Positive or negative it don't mater witch one. Put a 12 volt test light between the two disconnected (cable and battery end)...now if the light is lit, then you have a voltage drain somewhere...to find out were it is you will have too start to remove your fuses one at a time until your test light goes off...for example: if you pulled your cigaret lighter fuse and the light went off then you know there is a problem with that circuit...ect......

This sounds a little confusing but it is fairly easy..i sure hope this helps you out..Good Luck

Jul 27, 2011 | 1996 Jeep Grand Cherokee

1 Answer

The battery light stays on and the idle is high. Replaced the alternator 2 weeks ago and its doing it again. Is there anything else it could be or just a bad alternator?


You might have a short to ground somewhere that is draining the battery and preventing the alternator from charging it up. This is also called a "parasitic battery drain". To find it, you need to turn off the car and turn all accessories off. All lights inside and out should be off. Make sure everything you can think of is turned off. Then disconnect the negative cable clamp from the negative battery terminal. Hook up a 12V test light between the disconnected cable end and the negative battery post. If the light glows brightly, you have a short somewhere. Now, with the light still glowing, start removing fuses one at a time until the light goes out. The short is on a circuit that is protected by the last fuse you pulled before the light went out. the owner's manual should list what circuits are associated with the fuse. the problem is in one of those circuits or systems. You'll have to disconnect each piece of equipment protected by that fuse one at a time until you find the problem. Hint: it is probably in the circuit of something that has already failed to operate. For example, if your stereo has been "dead" for a while, the short may be in the wiring that powered it.

Feb 06, 2011 | 1989 Honda Accord 4 Door

2 Answers

My battery still drains down to nothin even though I just replaced the battery and alternator. Are there other things that will cause my battery to drain?


yes , most modern vehicles are full of electronics .
you can buy a test light at the dollar store , remove the negative ,
and place the light between the battery and connector .
normally it should glow brightly then dim out.
If you have a draw , it will stay bright , pull your fuses one at a
time until the light dims , thats the circiut thats killing your
battery.

Aug 13, 2010 | 2003 Ford Windstar

2 Answers

My battery is new and after sitting a day or two it will drain to death i am trying to figure out where the short is


You need to place a test light in between the negative cable and the battery negative post.The test light is cheap,purchase one and remove the negative battery cable from the battery,place the clip of the test light to the negative post on the battery(I know it is a side post),You may need a helper.Take the tip of the test light to the negative battery cable end.With the key out of ignition,and the doors closed,make sure there are no hood light,take it out if needed.If the test light comes on,there is a draw on the system,uplug the alternator plug first to see if the light goes off,if so,replace the alternator,if not,open the door,and remove the dome light fuse,then start removing fuses one at a time,and putting them back after you remove them and watch the test light,when it goes out ,that is the circuit that is the problem,so,trace the fuse to what it goes to,,also,keep in mind,clocks are bad to do this,and clocks in the radio.

May 04, 2010 | 1983 Chevrolet Chevy

3 Answers

My truck willnt start, have replaced batery twice, after a day the battery is dead, have had the starter, silnoid,and alternator tested all good... iam puzzled????? this is for a 1994 gmc suburban 454


Sounds like you have a power drain or short circuit that is killing the battery.

Disconnect the negative battery cable. Put an ammeter between the negative battery terminal and the disconnected cable. Remove fuses one at a time and look for a large drop in current. The fuse with the big drop is on the circuit with the short.

Note that even with the ignition off the radio, the alarm, and the remote entry will pull a few milliamps each. The control module might also draw some power.

After locating the circuit with the problem you need to check wiring and components for shorts.

A service manual (Haynes, Mitchel, Chilton) with wiring diagrams from your local parts store will help after you find the specific circuit.

Jan 12, 2010 | 1994 GMC Suburban

2 Answers

Battery goes dead after car sits for 3-4 days


Parasitic drain? If so, did they run a test light on the negative terminal? Unhook the negative battery cable, run a test light between the negative battery post and the negative (removed) cable end. Does the light come on? If so, remove each fuse, one at a time, when you hit the circuit that is draining, the light will go off.

I have a 95 Buick Roadmaster and it was doing the same thing. It was a broken light in the trunk, the bulb was out, but the electricity was still there. The wire became damaged when my daughter overloaded the trunk. Just a couple of ideas...

Dec 01, 2008 | 1992 Buick Park Avenue

1 Answer

Batterie trouble


You have an electrical short somewhere in the car, and it's what is draining the battery. Put a lightbulb inline with the battery (between the battery and the negative cable). You should see it light up. Get your fusebox diagram out and remove the fuse for the radio and any security system (since power always runs through these). Then remove each fuse one by one, and watch the bulb. When you pull a fuse, if the bulb stays lit, that's not the one you want. Put it back and pull the next one. When you pull a fuse and the bulb goes out, you've found the circuit that is conducting and causing your battery drain. From there, you have to troubleshoot the circuit to find out which component is failing.

Sep 03, 2008 | Hummer H2 Cars & Trucks

Not finding what you are looking for?
1992 Ford F250 Logo

272 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

77201 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22265 Answers

fordexpert

Level 3 Expert

5579 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...