Excessive Battery Terminal Corrosion - Ford Powerstroke Diesel Forum
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post #1 of 43 Old 11-23-2019, 08:25 AM Thread Starter
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Excessive Battery Terminal Corrosion

Checking my truck before making an 8-hr trip (each way) and I noticed the worst corrosion I've ever seen.

2017 XLT with 20k miles.

Should I not be driving it? Do you think the dealer will replace the cable under warranty? How about the battery?

Thoughts on causes?

Before cleaning:
Excessive Battery Terminal Corrosion-img_3684.jpg

After quick cleaning:
Excessive Battery Terminal Corrosion-img_3685.jpg
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post #2 of 43 Old 11-23-2019, 08:46 AM
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I too have the same corrosion on my posts but it isn’t nearly as bad as yours. Ford will come back and ask if you’ve ever had your batteries serviced/cleaned. This is not part of any dealership scheduled service, it’s an add-on. Maybe your dealership is better than mine, but warranty would not cover replacing mine for the reason above.

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post #3 of 43 Old 11-23-2019, 08:58 AM Thread Starter
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Wow. I guess I'll have to ask them. The passenger side battery is perfect.
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post #4 of 43 Old 11-23-2019, 10:27 AM
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Same here - 2016

Only happens on the driver's side batt. And, not as bad as your pics.
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post #5 of 43 Old 11-23-2019, 11:30 AM
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get some AGM and be done with corrosion

but i can tell by the condition of the top of the battery and the bracket that acid has been migrating all over so you may be " overfilling, bad battery boiling a cell, under filled,

you should really clean up that area and typically a coating of grease on the terminal and connector will keep oxygen and acid away preventing corrosion

also look for a crack at the terminal / housing area

6.0 flush pdf
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post #6 of 43 Old 11-23-2019, 12:36 PM
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Use some baking soda mixed in water to help get the corrosion off. Get something like this:
It keeps the corrosion in check.


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Last edited by SuperCrutyPS; 11-23-2019 at 12:39 PM.
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post #7 of 43 Old 11-23-2019, 12:46 PM Thread Starter
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Quote:
Originally Posted by ZMANN View Post
get some AGM and be done with corrosion

but i can tell by the condition of the top of the battery and the bracket that acid has been migrating all over so you may be " overfilling, bad battery boiling a cell, under filled,

you should really clean up that area and typically a coating of grease on the terminal and connector will keep oxygen and acid away preventing corrosion

also look for a crack at the terminal / housing area


I'll see what the dealer says. This is the factory battery - Iíve never messed with it at all. Guess I should have but didnít notice it until now. I do Oil changes and fill the windshield washer reservoir so Iím in that area. This seems to have popped up out of nowhere...
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post #8 of 43 Old 11-23-2019, 01:21 PM
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I have the same exact problem (drivers side POS terminal). I am having the dealer replace the clamp and battery (both not covered by warranty). Will have to pay more attention when I am under the hood. May as well check it every few weeks when I wash the truck anyway! I bought some protectant to apply and keep it near the car wash stuff to remember.
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post #9 of 43 Old 11-23-2019, 01:45 PM
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Personally I have had better luck with just about any type of grease over the spray on terminal protectants ( used to service some golf carts )

I sure do like my AGM batteries and the 0 mainatance but I still have a lot of lead acids
i try to keep the tops dry ( non conductive) and heavy grease on the + terminal

6.0 flush pdf
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post #10 of 43 Old 11-23-2019, 02:39 PM
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I can't believe this is still going on. Seems the past issues were related to the batteries cracking at the posts. Maybe this is a charging issue?? Causing the wet solution to "boil" and out gas to the posts??



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