[Tony Alonso]

Originally Posted by falcongtho3

The hood on '13/'14 cars are corroding beneath the paint. I suspect it is either poor prep or dielectric corrosion. Either way the paint on the leading edge corners of the hood cn bubble up form underneath. Ford won't fix it because it cars are not only out of warranty, but also because the paint is not peeling off. It's ugle and the only fix is to replace the hood, which obviously would require not only a repaint, but also some very expensive stripes replaced on the Bosses like mine.
https://www.allfordmustangs.com/foru...g-already.html

This actually goes all the way back to the 2005 model year. My previous 2007 and 2010 Mustang GTs had it, and I just replaced the hood of my 2009 Mustang Bullitt back in December.

There was an update to a previous TSB for the corrosion that was released recently. It says the following -

This TSB supersedes TSB # 17-0062 to update vehicle model years.

Issue:
Some 2000 and newer Ford, Lincoln and Mercury vehicles equipped with aluminum bodypanels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust.

Panel replacement is recommended.

The attached PDF has the full text of this.