My 2010 has suddenly developed a rather strange blistering rust problem on the rear bumper in one spot only. The other side of the bumper is fine. I don't know why this one corner is so bad yet the rest of the truck is fine.

The truck itself has no rust on it and I get it sprayed at Krown every year since new. I noticed about 2 months ago that this spot on the bumper had a bit of a bulge under the paint. Now it has broken through the surface and it's ugly as hell.

How would you go about fixing this? Do you think a body shop would be able to do something or should I grind it out and Line-X the thing?

Here's a photo... you can see there's still a huge blister under the paint that hasn't broken through yet.

 

That bumper will have to be re-chromed to look right. It most likely didn't have a good chrome job from the beginning. Chrome parts most of the time aren't as good quality as they used to be 15-20 years ago. That probably wasn't the root cause but certainly didn't help prevent the rust.

 

Thanks for your reply. Actually, its not a chrome bumper. Just a painted black one.

 

I'm surprised to see that much rust on a 4 year old truck! I've seen rust on the driveshaft of new trucks, but never that much on a bumper. For sure a body shop can fix that.

 

Yeah, and the fact that its coming from under the paint is strange to me. I wash the truck at a touchless car wash regularly in the winter and hand wash it in the summer. That blister came up very suddenly.

The truck is still dirty from winter as I haven't given it the spring cleaning hand wash yet. The weather is finally getting warm.

 

Doesn't ford offer a paint warranty that appears to be a defect

 

I took it to my dealer and they said no go on warranty. The truck is past the standard warranty but I do have ESP on it until 2016. However, I read the literature and it states bumpers are excluded.

 

OH! of course they are.

 

You live in the salt belt of Canada, that's prob why........ anytime I have to fix a vehicle from out east with salt damage I ALMOST WANT TO SLIT MY OWN THROAT

 

And it's not just salt these days. It's that liquid calcium chloride that they're using on roads which is just killer on vehicles.