Does anyone really know what’s causing the hood rot?

vernonator

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If your talking about paint bubbling, my buddy has a body shop, he says it’s aluminum oxide. Ford knows about it but they wont fix it under warranty.
Sure they will - I just had my '16 GT hood replaced under the corrosion warranty in March. Now they DID change the warranty between '15 and '16 to be MORE inclusive - so your statement is only partly true - on a '15 you have a shorter window to get it fixed, '16+ its 8yrs/unlimited mileage I believer (maybe 5yr/unlimited) but they sure DID replace/repaint my hood under warranty.

Side note - its not just Ford that is having the issue, my dealer has a Dodge dealership next door and they share the body shop. When I was getting mine done the service manager stated that the Dodge cars with Alu hoods had the same issue in the same place - leading edge of the hood. He did not understand why it was happening either - the F-150 has been all Al for years and he said they don't see the problem on them.





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Dominant1

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I will get the new fiberglass 2020 gt-500 hood from Cervinis hood when the next stimulus check comes out. I Will have my buddy’s body shop paint it ruby red. It will be badass.

https://ibb.co/CWS3Lrf
 

GT Pony

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Thanks OP. Hey, your corrosion warranty should still be in effect, no?
Panel corrosion warranty for 2015s really sucks. Ford updated it for 2016+ to be more reasonable. There's a long thread in this forum covering all the details.
 
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GT Pony

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2015 is actually the only year they won’t warranty the hood corrosion issue.
It will cover hood corrosion, but the hood needs to be perforated all the way through. Ford took the perforation requirement out for the 2016+ models.
 

GT Pony

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Ford has fixed it 2-3 times on my 2017 EB over the last four years. I noticed it again last month and the hood itself is being replaced with a brand new one after work this afternoon.
Ford has stopped trying to fix corroding hoods under warranty, and now say per TSB to replace a corroded hood with a new hood. Guess they finally learned that repairing doesn't always work and it most likely just corrode again.
 
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RIBS

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Got my 15 done under 3/36 warranty with 6 days left in the 36 month....new hood, galvanic corrosion due to metal contamination. It’s true, most spot repairs will bubble again and the 16 and up warranties are better....mine was garage queen with less than 19,000 miles and rarely saw rain.....
 

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Mucho appreciated. I commented and then searched, should have searched then commented! lol
You're lucky you have a 2016 and not a 2015. Ford screwed the pooch with the 2015 corrosion warranty statement.
 

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What's the sense In allowing Ford to give you another hood thats going to repeat the same corrosion process. If your gonna Keep your mustang for a while get an aftermarket fiberglass hood.. over and done..
 

Cplennon17

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You're lucky you have a 2016 and not a 2015. Ford screwed the pooch with the 2015 corrosion warranty statement.
Thank gosh for not having enough money in 2015 lol

They took pics at Ford yesterday and sent them to corporate. I'll know more today but they have a bunch of Exploders there for the same issue so I advise anybody with the problem (regardless of warranty) go get it
 

Cplennon17

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What's the sense In allowing Ford to give you another hood thats going to repeat the same corrosion process. If your gonna Keep your mustang for a while get an aftermarket fiberglass hood.. over and done..
Personally I am now mulling over the idea of getting the new hood (hopefully) and selling it. Then I'll buy the Cervini's like I want anyway lol
 

DrGrabster

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The car makers used to pretreat the bare aluminium with hexavalent chromium, such as chromic acid. A quick dip, dry and wash and the surface will resist the creeping oxide that can form under paint. These have been outlawed under health and safety rules and the car makers have no alternative that is anywhere near as good. So once water can reach the aluminium under paint, perhaps at a stone chip, the aluminium oxide can form. This creates the ideal conditions for more corrosion and the oxide and evolved hydrogen just lifts off the paint, it has nothing solid to grip to.
 

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