SkattrBrane
Well-Known Member
Do I need to put zinc on my car like I do on my boat now?
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I think it is a bit early to conclude this is an issue with the same causes as the previous generation hoods. I recognize it could be, however, I understand from a Ford person that the manufacturing process and metal formulation was changed to avoid this, as I mentioned previously.http://www.fordproblems.com/trends/hood-rust/
Looks like I was correct! Now we just have to figure out how to insulate the hood from the rest of the car!
The reason I said it was acting as a sacrificial metal in the first place is because aluminum doesn't corrode... it creates a very thin layer of Al2O3(aluminum oxide) on it that protects it from any corrosion, that's why it is fine to have untreated aluminum exposed to air. The only thing that could logically eat aluminum is galvanic corrosion or contamination with mercury.I think it is a bit early to conclude this is an issue with the same causes as the previous generation hoods. I recognize it could be, however, I understand from a Ford person that the manufacturing process and metal formulation was changed to avoid this, as I mentioned previously.
I'm hoping both the folks who reported this here are able to get some additional insights from a Ford field engineer. If it was me, I'd be asking for more diagnosis before any repair attempt. I feel for both of thsee folks.
I'm familiar with this because my 2010 GT was affected too.
Right...understood. The bubbling issue was also attributed to "e-coat blowout", which apparently developed over time because of the heat cycles from the engine. The excess e-coat residue was leaching out of the seams and forming the bubbling under the paint.The reason I said it was acting as a sacrificial metal in the first place is because aluminum doesn't corrode... it creates a very thin layer of Al2O3(aluminum oxide) on it that protects it from any corrosion, that's why it is fine to have untreated aluminum exposed to air. The only thing that could logically eat aluminum is galvanic corrosion or contamination with mercury.