Positive battery terminal corrosion - Mustang Evolution

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Old 03-23-2015, 12:04 AM   #1
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Positive battery terminal corrosion

Anybody know how much it would cost to get my positive terminal changed the corrosion ate it up so bad I'm not gonna be able to get by on just cleaning it up anymore

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Old 03-23-2015, 12:22 AM   #2
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Anybody know how much it would cost to get my positive terminal changed the corrosion ate it up so bad I'm not gonna be able to get by on just cleaning it up anymore

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Just get a new battery?

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Old 03-23-2015, 12:25 AM   #3
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Just get a new battery?

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Nah I wish I was that simple the positive battery terminal is so eroded it's about to snap in 2 pieces

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Old 03-23-2015, 12:27 AM   #4
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Do you have a picture? I guess I don't fully understand what you are talking about

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Old 03-23-2015, 04:07 AM   #5
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You mean the cable?
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Old 03-23-2015, 04:17 AM   #6
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You mean the cable?
The terminal it self and some of the cable

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Old 03-23-2015, 04:17 AM   #7
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The terminal it self and some of the cable

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I still return to my original suggestion of a New battery and cable. I don't understand what I am missing here lol

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Old 03-23-2015, 04:32 AM   #8
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I still return to my original suggestion of a New battery and cable. I don't understand what I am missing here lol

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I'ma post a picture of it when I get off from work so you can see what I'm talking about

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Old 03-23-2015, 04:34 AM   #9
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wtty?

I will caution most dealers won't splice the cable they will want to replace the harness. If it ain't wtty work and you don't want to fix it yourself go to a local garage to have a splice put in.

old school here, I cover the terminals with grease to prevent oxidation.

edit:: it the terminal is shot you'll need a new battery.
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Old 03-23-2015, 04:39 AM   #10
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wtty?

I will caution most dealers won't splice the cable they will want to replace the harness. If it ain't wtty work and you don't want to fix it yourself go to a local garage to have a splice put in.

old school here, I cover the terminals with grease to prevent oxidation.

edit:: it the terminal is shot you'll need a new battery.
Ight sounds like a plan

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Old 03-23-2015, 06:03 AM   #11
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Once you get the battery and the battery cable replaced, try this trick to prevent future corrosion issues; spray the post/battery cable connections with hair spray. It works!

Backing soda is good for cleaning, and a good dielectric grease or hairspray will help keep the posts/connections from corroding.
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Old 03-23-2015, 06:07 AM   #12
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Once you get the battery and the battery cable replaced, try this trick to prevent future corrosion issues; spray the post/battery cable connections with hair spray. It works!

Backing soda is good for cleaning, and a good dielectric grease or hairspray will help keep the posts/connections from corroding.
Thanks ima try it out

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Old 03-23-2015, 08:58 AM   #13
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Positive battery terminal corrosion

I had the same problem. The positive clamp won't even loosen because it's fused together. Called the dealership and they can't replace anything battery related under warranty, and they won't just give you a positive terminal clamp, you have to buy the entire cable positive and negative which is like $360.

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Old 03-23-2015, 02:23 PM   #14
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Rolldat how old is that battery and what year did it come out of.
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Old 03-23-2015, 02:38 PM   #15
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I had the same problem. The positive clamp won't even loosen because it's fused together. Called the dealership and they can't replace anything battery related under warranty, and they won't just give you a positive terminal clamp, you have to buy the entire cable positive and negative which is like $360.

Attachment 178163Attachment 178164

curious how that battery and terminal got in that shape, and ****ing Ford and their weak *** warranty coverages smh one of our Dodge Charger patrol vehicles had a bad battery (after about 2yrs of service) and our local dealership said it was covered under the bumper to bumper to warranty and replaced it no questions asked


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Old 03-23-2015, 02:58 PM   #16
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Ford told me battery 3 year 36,0000 !!!!!!!
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Old 03-23-2015, 03:05 PM   #17
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Have you been overcharging or flipping it upside down?
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Old 03-23-2015, 03:52 PM   #18
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Yes that is pretty bad, all suggestions above work, I had a similar problem on my 2000 GT, I had enough slack in the cable so I cut the old ends off and put on a new ones, I also put the felt washers on both post of the battery and used some terminal protector spray which took care of my corrosion issues!
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Old 03-23-2015, 04:33 PM   #19
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Yes that is pretty bad, all suggestions above work, I had a similar problem on my 2000 GT, I had enough slack in the cable so I cut the old ends off and put on a new ones, I also put the felt washers on both post of the battery and used some terminal protector spray which took care of my corrosion issues!
+1---had to do this last year, easy splice and go, and the fuzzys do help a bit

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Old 03-23-2015, 05:19 PM   #20
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Came off of a 2012, no clue how it got that bad. Got the car in February 2014, just changed the battery out in November.
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Old 03-23-2015, 05:24 PM   #21
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Wow that is bad, I would have someone check that. That is not normal, could be overcharging!
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Old 04-27-2015, 12:29 AM   #22
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This is a common recurrent problem on 2011 GT's. My 2011 GT CS had the same problem. I fought it with grease, anti corrosion, etc.. The wiring harness was corroded when I found it. My mechanics ignored it and were fired of course. It is definitely a manufacturing defect and Ford should be liable for the expense. It cost me over $1200.00 to get the harness fixed and battery replaced. Mine was out of warranty of course.
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Old 04-27-2015, 02:14 PM   #23
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Wow! I will be keeping a close eye on mine!
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Old 04-27-2015, 11:37 PM   #24
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The factory battery in my 11 GT was leaking around the positive terminal unknown to me as I don't drive it much in winter. Had to replace the entire engine harness as just the ends are not replacable. What a *****. It is literally the entire power distribution harness from fuse box to electric power steering to transmission and of course the battery. What a piss poor design.
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Old 04-28-2015, 12:24 AM   #25
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I've got a 2012. No sign of anything like that. Glad it seems to be a case by case issue
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Old 04-28-2015, 03:26 AM   #26
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There probably should be a class action suit about this! Ford would of course deny liability but it is a manufacturing defect and is costing customers thousands of dollars. I found this on a search and bet I would find it on other forums with enough searching.
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Old 02-29-2016, 02:43 PM   #27
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I had to do the same thing yesterday...great way to end my birthday weekend...

My battery looked exactly like yours OP. Matter of fact the battery stud itself broke in half along with the positive terminal module too.

I ended up having to get a new battery (obviously since the stud broke in half) and a new battery terminal end/adapter.

Now no issues.

Same year too. 2012 Base V6.

Whats even more crazy is have nothing pushing the power but the car. No subs, no aftermarket speakers, radio etc....

So annoying to deal with but I am glad I did it and it seems to be a better setup than it was before.
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Old 03-25-2016, 11:41 AM   #28
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I'm in the same situation. 2012 GT with only 6500 miles. Battery was completely corroded on positive side but I've got a little bit of clamp left....enough to hold it onto the battery. I'm going to switch to a lightweight Deka battery but will be needing the harness. I can't believe they only sell the whole part and not just the positive clamp? Anyone found a way around this?
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Old 03-25-2016, 12:06 PM   #29
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I've got that red cover off so many times switching tunes and stuff that mine would never get into a state like that. This is a battery problem, not a harness one. If the battery is showing ANY signs of leakage or corrosion like this don't ignore it, just replace it, regardless of whether you feel it should be warranteed or not. Modern cars punish batteries quite hard with all their electrical stuff.
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Old 10-02-2017, 04:14 PM   #30
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The same thing is happening to us right now. Car won't even attempt to turn over. We have power to the lights and radio but nothing more. At first we thought it was the starter because we had power. So we bought and replaced that. Nothing. Then I went back to the battery. Noticed the postive terminal wasn't very corroded because the battery is fairly new. But the old battery was pretty bad. The positive terminal clamp is in pretty bad shape. Can we just change the clamp? Or do we need a brand new set of wires and everything? Any help would be really appreciated!
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Old 10-02-2017, 04:57 PM   #31
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If it was mine I would cut back the old corroded cable to where it is good and splice in a length of wire. there is a lot of current that runs through this make sure the wire is sized properly and well insulated. If you are not confident you can do this go to your local mechanice and ask him/her to do it. I would not go to a Ford dealer as they may want to replace the entire harness= big $

reminder to all to check connections every once in a while.
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Old 10-19-2017, 03:15 PM   #32
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If it was mine I would cut back the old corroded cable to where it is good and splice in a length of wire. there is a lot of current that runs through this make sure the wire is sized properly and well insulated. If you are not confident you can do this go to your local mechanice and ask him/her to do it. I would not go to a Ford dealer as they may want to replace the entire harness= big $

reminder to all to check connections every once in a while.
What he said I have done this many times nothing too it just take your time, use the correct wire and take your time in fact go to Walmart and get this for $8.48
https://www.walmart.com/ip/Everstart...&wl13=&veh=sem
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Old 10-20-2017, 12:46 AM   #33
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Weird mine had corrosive on the ground (negative cable).
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