Question about Cars & Trucks

1 Answer

I have 2000 F-250 super duty with charging issues. Truck died on way to work. Put a new Ford alternator on it but still not charging. Took alternator to alternator shop to test. Tested good. Checked and cleaned all connections. The battery light on the dash does not come on even though it running off the battery. Any suggestions?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 5,470 Answers

Have the battery checked. There were a few years when Ford had an odd problem. The battery saver feature was designed to disconnect power draining equipment to leave you with enough juice to get the truck started. BUT it has been known to disconnect the charging system even at expressway speeds.

If the battery is weak enough to make the Alternator work too hard, the battery saver sees this as a power using problem and disconnects the charging circuit.

It is a sneaky problem and even using a battery charger the truck could be running and showing a charge, but disconnect the charger and it is a TIMED activation of the battery saver.. It activates after a few minutes and then your truck will discharge.

Another possibility is the plug-in for the small wires going to the alternator brushes. When you plug the plastic clip into the Alternator, the wires may not be sliding on the terminal. Often the wires ride up the plastic clip and fail to make contact with the terminal. In the store, they use their harness and clip and the terminal makes contact and works.

Posted on Oct 11, 2013

5 Suggested Answers

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 expert 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 repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 12 Answers

SOURCE: Charging system

change your battery cables and check all wires on the alternator for loose connections, expecially the grounds.

Posted on Oct 12, 2008

  • 1779 Answers

SOURCE: 1992 Nissan Pathfinder charging problems

How long did the 2nd alt. last before it died? The voltage regulator is, I believe, attached to the alternator. Have u had the voltage regulator checked?

Posted on Jan 04, 2009

csmock132
  • 4669 Answers

SOURCE: Battery dosn't charge, alternator/voltage adapter test's good.

Did you test the Alternator on or off the truck? It might be a problem with the control system to the Alternator. The regulator need a battery feed to work, It is usually ran through an alternator fuse.

Posted on Mar 11, 2009

  • 13 Answers

SOURCE: alternator not holding charge

you need to check your grounds... very good possiblity there is a bad ground.

Posted on Apr 10, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Where do I find the mega fuse or in-line fuse from alternator on a 2000 F-150 XLT 4.6 V-8 triton?


Mega fuse ford. - YouTube

? 1:35
https://www.youtube.com/watch?v=o9npBfNjKsU
Dec 2, 2013 - Uploaded by Mn09lfV6f
Mega fuse ford. .... Thanks Bud you saved me from getting analternator! I didn't ... 8:39. How to Find and ...

Part 2 -How to Test the Alternator (Ford 4.6L, 5.4L).

troubleshootmyvehicle.com > Ford > 4.6L, 5.4L
Mar 1, 2011 - The newer Ford vehicles use an inline fuse that goes by the name ofMega Fuse. So, before we can condemn the alternator as BAD, we need ...

Where the heck is the Mega Fuse pics needed. - Ford Truck ...

www.ford-trucks.com > ... > Super Duty & Heavy Duty
Jun 5, 2010 - 2001 F250 5.4 V8 4x4. I have had ... Even tried a new alternator and the battery light still stays on. ... 04 F350 XLT 4x4 6.0L SC/LB 4x4 ... I looked there and see one line marked FUSE but there is no mega fuse on it. .... 2005 F-150 Lariat having huge charging issue please help me, JoeJN, 2004 - 2008 F150 ... Installed battery backwards, truck wont start.
Jan 17, 2012
charging problem 99 5.4
Feb 20, 2010
2001 F150 Fuse Box Diagram
Jan 23, 2010
Fusible links and inline fuses?
Sep 17, 2009
More results from www.ford-trucks.com

Dec 16, 2015 | Cars & Trucks

2 Answers

Truck is draining charge and not charging battiers


I just went thru same thing with my 2003 f-350 diesel. I hooked up my horse Trailor and drove to Von's parked went in came back out and truck was dead. I tried to jump it didn't work. Then over next two hours two tow truck Drivers hooked up to both batteries full power charge direct to my truck and would not start.
End story required two new batteries alternator and cilanoid discussed above. In other post. Also contributing to the cause was really badly coroded cables they looked good at the connection point but wher discovered to be coroded inside the tubing just above the end connections so bow it has all been replaced and I have had no trouble since. Hope this helps. Tanya

Jan 23, 2013 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

Ok i have 05 ford f350 super duty the alternater went out on it replaced it and had the batterys checked on it they are good but the battery light is still on in the truck about 5 min after you start it...


One thing that I would check is the connector that plugs into the alternator. I have seen these connectors go bad and not allow the alternator to charge. Check for battery voltage at the post on the back of the alternator too

Sep 05, 2010 | 2005 Ford F 250 Super Duty

1 Answer

After a new alternator my light is still on. says


Try taking the + positive battery cable off for about 5 mins then replace it see if it'll reset it.

Apr 05, 2010 | 2000 Ford F350 Super Duty Super Cab

1 Answer

2002 Ford F250 V10 new alternator good battery but it dies while you are driving


Does the battery charge even after it drains. Even though it's a new alternator, it could still be bad. The battery could even have a dead cell because it's draining while you're driving. Sounds mainly like the alternator output isn't enough. Internal voltage regulator inside the alternator is usually a big problem, it can't be replaced, except by a new alternator or have yous rebuilt.

Jan 05, 2010 | 2003 Ford F250 Super Duty Crew Cab

1 Answer

2002 F250 7.3 drains batteries and dies


You need to have the alternator re-checked and be sure the wiring is clean & correct. If an alternator is working properly & wiring is correct, those batteries should be charging as you drive.

Nov 27, 2008 | 2002 Ford F250 Super Duty SuperCab

1 Answer

Battery losing charge


If its pushing that much current into a fully charged and brand new battery it is over charging and collapsing the cells in the battery.

Nov 27, 2008 | 2005 Ford F 250 Super Duty

1 Answer

1999 f250 will not charge battery


It appears that the alternator is still not charging the battery.Charge the battery up,and refire the truck.Check voltage with a voltmeter,directly off the back of the alternator.Most all alternators of your year model have the voltage regulator built into the alternator.If the alternator isn't producing any voltage,then it is bad,even if it is new.I have had defective new parts before.

Aug 10, 2008 | 2000 Ford F250 Super Duty Crew Cabs

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

82 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

75066 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Randy Ohler

Level 3 Expert

14585 Answers

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

Answer questions

Manuals & User Guides

Loading...