[Papa Tim]

Will have to try that after the recommended curing duration of 90 days. Wax does interrupt the curing process and they told me not to wax the newly repainted hood for up to 90 days to allow it to fully cure.

The wax sprays inside the front edge of the hood, from the underside.
It does not go on the painted exterior.
Lay plastic across the front of the van as some will drip out.
Lower the hood as soon as done so it flows into the front edge on the inside.
It will stop flowing in a few minutes and you can open the hood to remove the plastic.
There are several different brands.

 

[simo10]

The wax sprays inside the front edge of the hood, from the underside.
It does not go on the painted exterior.
Lay plastic across the front of the van as some will drip out.
Lower the hood as soon as done so it flows into the front edge on the inside.
It will stop flowing in a few minutes and you can open the hood to remove the plastic.
There are several different brands.
View attachment 50845

I doubt this will do anything. The corrosion issue is due to a reaction with the aluminum hood. It's caused by an error with surface prep from the factory. It's not typical rust that usually starts from the inside out with steel panels, in this case, the cavity wax would help.

Edit: This is an issue across many brands. just search aluminum hood corrosion on google

 

[donald.hoff2020]

The paint bubbling is definitely not from the shop that did the oil change. All the service bays I've seen use fluorescent or LED lighting which don't create much heat, and the light fixtures are still at least 6 feet above the hood when the vehicle is fully elevated on the lift. It's probably just the aluminum corrosion that is common with these vans and should be covered by the paint/corrosion warranty.

You better get it to Chrysler , If it's over 5 years or 100,ooo , they won't fix it , I have a 17 with bubbles , Chrysler sent me to preferred body shop , they wanted 600.oo , no no no , hear this Chrysler

 

[donald.hoff2020]

I doubt this will do anything. The corrosion issue is due to a reaction with the aluminum hood. It's caused by an error with surface prep from the factory. It's not typical rust that usually starts from the inside out with steel panels, in this case, the cavity wax would help.

Edit: This is an issue across many brands. just search aluminum hood corrosion on google

You can not put steel with aluminum.

 

[almartell75]

Hello Almartell75,

Thank you for grabbing our attention. Have you tried reaching out to our Customer Care Team regarding this concern? If you would like further assistance, please send us a PM with your VIN, we'd be happy to assist you.

William
Chrysler Cares

Hi Thanks a million I did & give them my email/Cell plus the VIN # , they will make a decision shortly.

 

[Papa Tim]

I doubt this will do anything. The corrosion issue is due to a reaction with the aluminum hood. It's caused by an error with surface prep from the factory. It's not typical rust that usually starts from the inside out with steel panels, in this case, the cavity wax would help.

Edit: This is an issue across many brands. just search aluminum hood corrosion on google

I know exactly what it is and what causes it.
Retired after 35 years in a Body Shop at GM & Chrysler Dealerships and 13 years in a GM assembly plant, Paint Dept.
I have seen this hundreds of times, it can not be properly repaired but it can be prevented.
Replacing the hood is the only proper way to address this issue.
A sealant, like the Cavity Wax I previously mentioned, is the only way I have found that prevents this problem.
Also, this has nothing to do with surface prep, it is corrosion that starts inside the seam and comes around the front lip of the hood, from underneath.

 

[M0Par]

I know exactly what it is and what causes it.
Retired after 35 years in a Body Shop at GM & Chrysler Dealerships and 13 years in a GM assembly plant, Paint Dept.
I have seen this hundreds of times, it can not be properly repaired but it can be prevented.
Replacing the hood is the only proper way to address this issue.
A sealant, like the Cavity Wax I previously mentioned, is the only way I have found that prevents this problem.
Also, this has nothing to do with surface prep, it is corrosion that starts inside the seam and comes around the front lip of the hood, from underneath.

So the question is, is this caused by galvanic corrosion and if so how does the wax inhibit this process?

EDIT:
I see my question has been addressed by the cavity wax manufacturers:

Cavity Waxes
OEM’s spray an anti-corrosion cavity wax on the inner panels of vehicles to protect inner seams that can’t be sealed from corrosion. In collision centers, these products are applied after panel replacement by spraying through access holes with a 360° spray pattern tip attached to a long wand, ensuring complete coverage of the inner panel. There are several aftermarket manufacturers with this type of product but not all are equal. Make sure to choose one that provides a complete 360° pattern with no gaps for complete coverage and also has excellent wicking characteristics to pull itself up into internal seams for maximum corrosion protection. SEM’s Rust Preventer Cavity Wax provides best in class for all characteristics.

 

[CANADAHYBRIDGUY]

I know exactly what it is and what causes it.
Retired after 35 years in a Body Shop at GM & Chrysler Dealerships and 13 years in a GM assembly plant, Paint Dept.
I have seen this hundreds of times, it can not be properly repaired but it can be prevented.
Replacing the hood is the only proper way to address this issue.
A sealant, like the Cavity Wax I previously mentioned, is the only way I have found that prevents this problem.
Also, this has nothing to do with surface prep, it is corrosion that starts inside the seam and comes around the front lip of the hood, from underneath.

And like many on here that think it’s cool versed for 5 years and unlimited miles , it’s covered under you time and mileage corrosion warranty and will be done in that period and there is a hood will gesture if your out of that period within reason . But no one the hood is replaced you do not set the clock back to zero and get another 5 yr time and mileage warranty . So just be aware that in 2-3 years your on your own dime .

 

[almartell75]

And like many on here that think it’s cool versed for 5 years and unlimited miles , it’s covered under you time and mileage corrosion warranty and will be done in that period and there is a hood will gesture if your out of that period within reason . But no one the hood is replaced you do not set the clock back to zero and get another 5 yr time and mileage warranty . So just be aware that in 2-3 years your on your own dime .

On Friday the dealer referred me to Chrysler, bought mine in July 2018 & waiting on a decision from Chrysler.

 

[bowhill]

On Friday the dealer referred me to Chrysler, bought mine in July 2018 & waiting on a decision from Chrysler.

I noticed bubbles on my hood after reading this thread. Took my 2018 to the dealer, they took photos and would submit the warranty claim to Chrysler after getting a quote from their body shop. They said the process would take 2-3 weeks and expected it would be addressed under the corrosion warranty.

 

[M0Par]

I noticed bubbles on my hood after reading this thread. Took my 2018 to the dealer, they took photos and would submit the warranty claim to Chrysler after getting a quote from their body shop. They said the process would take 2-3 weeks and expected it would be addressed under the corrosion warranty.

That's the part I can't understand. My dealer just did the work and had it back to me in 48 hours. Didn't have to wait in Chrysler for anything.

 

[Papa Tim]

That's the part I can't understand. My dealer just did the work and had it back to me in 48 hours. Didn't have to wait in Chrysler for anything.

Many dealers will do the work right away as long as you're still under the warranty because they know it's covered, others string you along for weeks or months for no real reason.
It should take no more than 2 days to replace the hood.
Also, many dealers are having trouble getting new hoods right now, like a lot of other parts, so make sure they have one in stock when they tell you to bring your van in or you could be without it for a long time.

 

[M0Par]

Many dealers will do the work right away as long as you're still under the warranty because they know it's covered, others string you along for weeks or months for no real reason.
It should take no more than 2 days to replace the hood.
Also, many dealers are having trouble getting new hoods right now, like a lot of other parts, so make sure they have one in stock when they tell you to bring your van in or you could be without it for a long time.

They ended up doing a repair rather than a replace. Will give that cavity wax a try since the seams between the two metals are the cause for the galvanic corrosion.

 

[Papa Tim]

They ended up doing a repair rather than a replace. Will give that cavity wax a try since the seams between the two metals are the cause for the galvanic corrosion.

Keep an eye on the underside of the hood, that's where it will start from.
I've never seen a repair last more than a year although getting the wax in there should at least slow it down.
Once it's started it's very hard to stop.
MOPAR will replace the hood for this problem, it was the dealer you went to that didn't want to mess with the paperwork.
Also, the dealer makes more money repairing it so they would much rather do that rather than replace it.
Good Luck!

 

[M0Par]

Keep an eye on the underside of the hood, that's where it will start from.
I've never seen a repair last more than a year although getting the wax in there should at least slow it down.
Once it's started it's very hard to stop.
MOPAR will replace the hood for this problem, it was the dealer you went to that didn't want to mess with the paperwork.
Also, the dealer makes more money repairing it so they would much rather do that rather than replace it.
Good Luck!

Interesting about the repair motivations. Certainly lines up with how quickly they did the repair. Looks like repairs are covered under a 2 year warranty. I'm tempted not to get the wax because if it's going to reoccur I don't want to delay the corrosion from showing up after that 2 year warranty period ends. Do you have any idea why a new hood is any better than the a repaired hood? They both should be subject to galvanic corrosion.

 

[Papa Tim]

Interesting about the repair motivations. Certainly lines up with how quickly they did the repair. Looks like repairs are covered under a 2 year warranty. I'm tempted not to get the wax because if it's going to reoccur I don't want to delay the corrosion from showing up after that 2 year warranty period ends. Do you have any idea why a new hood is any better than the a repaired hood? They both should be subject to galvanic corrosion.

You can not repair the area where it started corroding as it is inside the seam, where the outer metal folds over the inner hood.
The only possible way to repair it would be to unfold the entire front edge of the hood, grind it down to bare metal, coat it with an anticorrosion material, then fold the lip back over it.
About impossible because the edge would split open when bending it that much, it would also be extremely time consuming.
Coating a new hood inside, stops it before it gets started.

 

[terraformer]

I'll never not be pissed that Chrysler wouldn't pay to have my PPF (protection film) reinstalled after the bubbling hood was fixed. I mean, I had PPF installed all over the front of the vehicle b/c I live in the upper midwest with its horror roads and rocks flying everywhere. That wasn't cheap. Then this happens, and through no fault of my own, these hoods have this paint issue and must be fixed, and to do that, the PPF had to be removed. Anyway, pretty shi++y customer experience

 

[Papa Tim]

I'll never not be pissed that Chrysler wouldn't pay to have my PPF (protection film) reinstalled after the bubbling hood was fixed. I mean, I had PPF installed all over the front of the vehicle b/c I live in the upper midwest with its horror roads and rocks flying everywhere. That wasn't cheap. Then this happens, and through no fault of my own, these hoods have this paint issue and must be fixed, and to do that, the PPF had to be removed. Anyway, pretty shi++y customer experience

Warranty never pays for 3rd party add-ons.

 

[almartell75]

Chrysler got back to me with a case # they said I can take it to any dealer, they [Chrysler] need a compete diagnostic report & photos from whatever dealer I take my car to . I understand photos but what a complete diagnostic report has to do with bubbling paint front lip of the hood?... Lets hope this is a path to fix the paint issue on the hood. stay tuned.

 

[M0Par]

Chrysler got back to me with a case # they said I can take it to any dealer, they [Chrysler] need a compete diagnostic report & photos from whatever dealer I take my car to . I understand photos but what a complete diagnostic report has to do with bubbling paint front lip of the hood?... Lets hope this is a path to fix the paint issue on the hood. stay tuned.

How did they contact you?