Has anyone ever developed rust along the seam at the bottom of either door? My 99 has 35,900 miles and is bubbling up like crazy on the drivers side door. I noticed it a few months back as I was drying out the inside of the door, and it has been getting worse. The dealer applied rustproofing when I bought the truck because it was my everyday vehicle. It has seen three winters, and is cleaned every 3-4 days (even in winter). I am out of my mileage warranty, but the rust proofing warranty should still apply... the dealer is conveniently having a hard time locating the "right" paperwork. Seems like what I have isn't enough.
Anyone else have this problem? I have seen it on quite a few newer F-150's.

 

40,000 miles on my 99 and I don't have anything on mine. But mine never goes out in the winter too and barely ever the rain anymore.

 

yes, my 98 f150 did it on both doors, so when i got my 2000 L with 17k miles on it, i immed. took some white silicone and sealed the weld joints, have not seen any bubbling..

i hope the dealer treats u better on your claim than the last time i tried a rust claim, they stated it had to be rusted through ..


jim

 

check the drain holes on the bottom of the door, use a flat screw driver to make sure the holes/slots are open

 

5yr 100,000 body rust warrenty,look into it!!

 

There is TSB 01-9-8 that states:

It states that it's covered under the bumper to bumper warranty, but the 5yr corrosion warranty is stricktly limited to body perforation; meaning the rust would have to actually go through the door.