So now that we are getting snow up here in NY, I've been thinking about the Dodge door rust problems. Does anyone have any experience with preventing this, either a coating I should put on, or a hole I should drill somewhere to let the water drain better? Thanks a lot in advance
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Jon

 

Move further south where they just put salt on food and not the roads.

sorry could not resist.

 

my father in law and i have always put used oil in the doors he has a 92 that has no rust at all and he has owend it since new we live in michigan so i gess it works cant hurt any

 

The doors have drain holes, but the driver's door is still subject to it. My 99 came from Mass. and has rust along the bottom edge of the left door. Right door looks like new. I put oil in the door and sprayed corrosion inhibitor on it. I am hoping to stop it in its tracks.
If you put oil in the door, by whatever access you have, keep in mind that it will drip right out of the drain holes so leave the doors open a while as they drain. The best access is to pull the door panel so you can make sure it gets spread out good inside there.

Chris

 

Remove the rubber drain plugs, and leave them off. It helps the water drain out and keeps the inside of the door ventilated.

The oil is a big help. Get a can of motorcycle chain lube and remove the inside door panel, spray the chain lube in every nook and cranny. The chain lube goes on thin, runs into the tight spots, then thickens up to stay put. Get the stuff every where you can, then wipe up any thing that gets to the outside of the door with wd-40 or any other type of mild solvent. Kevin

 

i have a solution/fix for already rusted doors to this but i'll have to find my post on ps.com and get back to you for new doors you need to drill more holes in the bottom of the door near the pinch weld also the doors need to be coated with some kind of sealant like line-x ect to keep the moisture and salt off our dorrs in the salt belt and the east coast

 

Do tell. Mine is getting to be rusted really bad

Eric

 

Mine are showing signs now but have not rusted thru. I'll likely get another year out of them before they need to be fixed. Then, I'll have them fixed and they'll probably outlast the rest of hte truck.

 

When I first got mine I got this stuff from Amsoil called MP for metal protector, It sprays on like WD40 but it smells like crayons and it drys kind of waxy. That was 6 years ago and now whenever I'm underneath it I check around and respray whereever looks like its starting.
If you already got it started then knock of the loosest rust and paint it with rust reformer(that stuff that turns rust into black....something that isn't rust) I also use cold galvanizing paint. it keeps all the outside equip in nice shape.

 

Yeah, my driver's door is showing rust along the bottom edge too. I'm gonna try the chain lube trick, that ought to slow it down. Good post!

 

Being from NY also, I've had plenty of experience with rust. I've sprayed used oil inside the doors for years, to prevent and stop the spread of rust. So far its worked great. I undercoat the entire vehicle with it also. Just make sure you get a good heavy coat on the exhaust system....keeps it from squeeking.

 

The old timers when I was growing up would use used engine oil. They would cut it a little with mineral spirits, kero, or whatever and try to get it into every nook and cranny. It worked really well. I like the chain lube in areas that I can get to, or when I have panels removed for installing speakers, etc.

In areas that I can't get to, I picked up one of those one gallon pump to pressurize garden sprayers, got some hose and some 1/4 inch copper tubing.
Put the oil in the sprayer with a little mineral spirits, pumped it up, and started removing draing plugs. The copper tubing is about 36 inches long. It allows you to get deep into the panels. The rocker panels, the doors, in the back panel behind the doors, and even above the fender wells, especially where the fender well meets the quarter panel in the rear. You know, that spot that really rusts out on the fords and chevy's.

Be advised, the oil will drip for a few days, and it's good idea to do this after the car has been really washed, I mean really flushed out with clean water and allowed to dry for a few days. Depending upon where you live, this is not the right time of the year to do this. Spring and fall are the good times to do this.
Here is a recipe on making your own "waxoyl" :

http://www.geocities.com/wallaces_21/waxoyl.html

They use this type of a rust prevention in europe quite a bit. There is even a company called "Krown" in Canada that will do this to you truck. I don't know why they don't do this in the states.

Oh yeah, don't forget the tailgate! Hope this helps, Kevin

 

I have the Amsoil MP and the same thing from CRC "Heavy Duty Corrosion Inhibitor" :http://www.grainger.com/Grainger/wwg...mId=1611760930

Even so, I am still glad I subscribed to this thread. Keep the ideas coming.

Thanks,
Chris