This is about as Scientific as you get. Stellantis has never reached out to me, and asked me if I had corrosion(bubbling of the paint), or anyone else for that matter. . I'm sure they wouldn't share whatever information they have, unless there was a court order to do so.
Keep up the good work
Let's keep this forum typo free.
Stellantis now knows exactly what the numbers are. They decided a while back it's cheaper to just individually fix the issue for those that catch it within the 5 year corrosion protection window rather than mess with the assembly line process in Toledo.
How have they addressed the issue? I know they tried putting shims in the door hinges,, but did that solve the corrosion? As for Broncos, do they have aluminum doors and hoods? Are the Broncos corroding?
Think they just replace the hinges with ones made of the same metal as the doors. The corrosion was happening because they used 2 different metals. Haven’t heard anything about the broncos
Unfortunately, this is incorrect. Both the hinge and the door have been aluminum since the JL was launched. It’s not galvanic corrosion, it’s simply corrosion from the raw aluminum under the hinges corroding. The only thing preventing air: water intrusion is the paint sprayed over the hinges, as they are attached to the door prior to painting during the assembly process. The zinc shim simply acts as a bandaid to prevent the corrosion from occurring during the warranty period. If you want to prevent the under hinge corrosion, remove the hinge, prep and seal the raw aluminum, and replace the hinge. That’s the best option, and I can’t say that it will be 100 percent effective. And, this will not solve the hood edge seam corrosion or the windscreen corrosion or the door edge seams corrosion. So there’s that
Unfortunately, this is incorrect. Both the hinge and the door have been aluminum since the JL was launched. It’s not galvanic corrosion, it’s simply corrosion from the raw aluminum under the hinges corroding. The only thing preventing air: water intrusion is the paint sprayed over the hinges, as they are attached to the door prior to painting during the assembly process. The zinc shim simply acts as a bandaid to prevent the corrosion from occurring during the warranty period. If you want to prevent the under hinge corrosion, remove the hinge, prep and seal the raw aluminum, and replace the hinge. That’s the best option, and I can’t say that it will be 100 percent effective. And, this will not solve the hood edge seam corrosion or the windscreen corrosion or the door edge seams corrosion. So there’s that
I agree with your statement concerning the bolts being steel, but stand by my assessment that the cause of corrosion is not galvanic, but simple aluminum oxidation. But we can disagree on that point, since there is likely no way to determine the actual culprit. I will say that when I removed and replaced my hinges there was no evidence of galvanic corrosion at the steel aluminum interfaces, and no evidence of corrosion on the steel bolts. While there was plenty of aluminum oxidation creeping into the seams. However, I will admit to applying a generous amount of marine grade antioxidant grease to the bolts during reassembly
The self protecting seems to be happening to our Jeeps. The problem is, it's happening under the paint.
