Rust on Frame with A/C drain mod fix

I did this mod this morning. But I don't seem to see any condensation on the ground from the AC drain hose I extended. Is it possible I F'd up such a simple mod? And what are the possible negative effects of the line not draining?

Any help would be nice

 

Nevermind

 

Just did mine over the weekend! To be honest, I'm not sure how long this one will stay installed. The weight of the extension hose was really pulling on the smaller hose coming from the cab. I'll just keep an eye on it for a few weeks.

OA

 

I keep forgetting to do this mod. Must get on it this weekend.

 

I don't get how this is problem. It shouldn't rust with just water, wouldn't you need salt?

 

Rust is another name for iron oxide, which occurs when iron or an alloy that contains iron, like steel, is exposed to oxygen and moisture for a long period of time. Over time, the oxygen combines with the metal at an atomic level, forming a new compound called an oxide and weakening the bonds of the metal itself.

Water is the enabler of fast oxidation of iron so freshwater will also cause rust. However, salt water is a very good conductor (lots of dissociated ions) and so there are a number of electrolysis reactions that tremendously accelerate corrosion in saltwater.

I'm no scientist, but Google is

Salt just expedites the process.

 

Absolutely going to do this to my truck tonight. I use my AC for half the year so its a bit of a no brainer. Might find something other than a zip tie to fasten the end of the hose with though. Thanks for the detailed install OP!

 

hey @Pisan1 Where did you get that hose clamp?

 

O'Reilly Auto Parts

 

Just finished the mod. I snaked the tubing back a little bit and the end is sitting strapped to the frame under the passenger door. Ran the truck with the AC blasting for about 10-15 mins and no condensation dripping. I feel air blowing out, but no dripping. My question is, if the tubing is not going "downhill" the whole way, will this present a problem?

 

It needs gravity to assist with flow so yes.

It's just like condensation building up on a cold can of beer on a hot day, no pressure or anything. It's just gravity working at its best.

 

All in all it is lower from the orig hose to the end, there's just a slight S. It did end up dripping a little bit yesterday afternoon after taking it for a long drive. My worry is if it is bad that condensation/water is trapped in the one part that is a bit higher than the end of the line- it's well past the orig line and maybe I'm being anal. I'll prob end up reworking it soon anyways. Thanks for your response.

 

It's just water. Maybe a thin light weight hose vs a heavy rubber hose is better.

 

Mine is still going strong with no issue apparent. If anything happens I'll be sure to post

 

I ran the hose outboard of the frame.
To bear the general weight of the hose, I made a figure 8 out of two plastic wire ties with one loop around the hose
and the other around the metal brake hose junction. The hose then passes through a slit I made in the rubber splash guard
and rearward. Near the bottom edge of the frame, I snaked a large wire tie through two holes in the frame by putting two crimps
in the wire tie. Okay, I folded the wire tie and bit down on two bends about 3 inches apart. Hey, it worked!
I looped a smaller wire tie through the big one after it was snugged down and used it to secure the free hose end.
A Sears Handi-cut I found in the road a while back made easy work of clipping the end to length and I was done. After it was all over, it occurred to me,
"Wonder if the tire will rub the hose at full right turn?"
Nope. Misses by several inches. I have the OEM Toyos on my SR5. Proceed at your own risk.

Foot note:
Since it's so easy to get at the hose from inside the truck, has anyone considered re-routing/extending from there to a different hole?
Maybe one made in the cab floor pan sealed with RTV and the hose going some place away from the frame.
Just thinking out loud.

 

Finally did this mod this weekend. Longest part was waiting for the truck to cool off before I could crawl under and get my hands in there lol

 

Shit gets hot quick under there!

 

.
...^^^... Great write up ... .... on my list now.
.

 

I got this done to my Tacoma today, but I bought a plastic barbed connector at the hardware store and used it to splice on the heater hose, and I secured it in three places with large ty-raps. Thanks to the OP for posting this up.

 

when I run my finger over the original hose I feel cold air blowing out, which makes me have questions. Does this intentionally vent into the engine bay? and if we extend the hose will it create back pressure and cause issues for the hvac unit. I def want to route the moisture away from the frame though