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Expedition alternator problems
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New User
Joined: Jul 2004
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Expedition alternator problems
I have a 2003 expedition. I put a new alternator on it. After doing so, the check charging system message still appears, as well as the battery light being lit up. I took the vehicle to the store I got the alternator from and they put it on their machine. It tested fine. The battery is also good. I would like to know if there is any kind of a reset. I also disconnected the negative battery cable and tried that. Any help would be great.
Elder User
Joined: Jun 2004
Posts: 679
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From: Orlando, Fla
Ask the store if they have a code checker that will erase that code. Question for ya, why did you need to replace your alternator? Hope you didn't do what I did and use a cigarette power inverter...lol.
Elder User
Joined: Jun 2004
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From: Orlando, Fla
You may want to see if the store has an alternator/battery system tester or go to a place that does. To make sure the voltage is getting to where its supposed to. Definately want to make sure nothing is getting backfed. Check the Recall/TSB's in the upper right side on the page here, make sure there are no probs with the sending unit or the like.
New User
Joined: Jul 2006
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I got the same Alternator Problem
Ocean,
What turned out to be the solution to your problem?
I changed battery and alternator and now get Battery light and "Check Charging System" message on my 2003 Expedition.
I hate giving Ford Service departments money when I can fix most things...just hoping there's an easy solution.
Let me know ASAP.
Or, does anyone else know what this could be?
What turned out to be the solution to your problem?
I changed battery and alternator and now get Battery light and "Check Charging System" message on my 2003 Expedition.
I hate giving Ford Service departments money when I can fix most things...just hoping there's an easy solution.
Let me know ASAP.
Or, does anyone else know what this could be?
Posting Guru
Joined: Jun 2006
Posts: 1,590
Likes: 0
do you have a navigation system? If so, I'll bet the aftermarket alternator you put on it isn't big enough. My guess is not enough amps? What rating is your alternator?
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Elder User
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I don't understand what useing an inverter or a navigation system would have to do with it. I use both on all my vehicles with stock chargeing systems and have NO problems.
The inverters power a laptop & battery chargers and I always have a GPS going.
I have even left them on when the vehicle wasn't running with no adverse effects.
The inverters power a laptop & battery chargers and I always have a GPS going.
I have even left them on when the vehicle wasn't running with no adverse effects.
Posting Guru
Joined: Jun 2006
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Originally Posted by Leader
I don't understand what useing an inverter or a navigation system would have to do with it. I use both on all my vehicles with stock chargeing systems and have NO problems.
The inverters power a laptop & battery chargers and I always have a GPS going.
I have even left them on when the vehicle wasn't running with no adverse effects.
The inverters power a laptop & battery chargers and I always have a GPS going.
I have even left them on when the vehicle wasn't running with no adverse effects.
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