My 02 F150 has surface rust creaping out on the bottom of the door where the outside skin is folded over the inside, the truck only has 48,000m.

What can I do to help stop this? The weep holes are clean

 

Hi.

Check this out: https://www.f150online.com/forums/sh...ight=door+rust

There is also a TSB that details the repair procedure to use - it's quite involved as it requires the seam to be pried apart for treatment. Ask the Stealership?

Good luck.
bubba

 

Ya, I have this, driver side badly, passenger side not noticeable and tailgate a bit. Basically clean in out good, apply seam sealer, prime, paint and as a preventative, I've always had a good seeping undercoat shot in the doors and tailgate. It keeps the rusting at bay. Around here, you can get dripless oil spray or drip, drip makes a mess on the driveway for a few weeks but seems to seep better. The mess usually goes away after a winter or so.

 

i have the same problem, the best solution i found is this stuff called rust mort, heres a link to the description. your local hardwear store should have it for about ten bucks. best stuff ever for rust!!

http://www.sjdiscounttools.com/sem69508.html