Mystery Hose/Tube

[Funmart6]

A while back I posted about a hose and metal tube that I think is routed wrong under my factory airbox. I had a transmission installed some time back and the guys that did the work just plain did a sucky job and this line/hose is not where it should be. I had my battery tray completely out of the car and I know that there was no large rubber hose and metal tube located on top of the bracket where the battery tray bolts to. I mean, there would not be enough room between the tray and the mounting bracket for the hose to be in between the two. It was not there before the tranny install. So today I was looking at re-routing this mystery hose and tube. This is not a cooling line by the way. It is a very large diameter rubber hose at the front of the transmission (?) and comes around to join a metal tube that has a mounting bracket welded to it, goes around the transmission near those large electrical connectors under the throttle body, then joins back up with a rubber hose and disappears behind the engine near the firewall, that is what it looks like to me anyway. I found a label on the metal tube with "Ford" F6DE-9B457-AC.
I have searched to see what this could be and even Googled the number but came up with nothing. Does anyone know what this hose and tube are? It looks like it may be a ventalation line or something. I took it apart and there is nothing in it, no fluids anyway.
Thanks for any help in identifying what this is.

 

[1998v8sho]

Can you take a pictures of the hose and where it "runs" from and to?

 

[Funmart6]

Okay, I was able to take some pics today.





The first two pictures show the hose going across the battery tray mounting bracket and going down in front of the transmission where it appears to end clamped to the lower front of the transmission.



This pic shows the hose and tube as it runs from the front of the transmission, (radiator side), across to the rear of the transmission, (firewall side).

The hose turns and goes behind the transmission.

This shows the hose as it curves behind the transmission and ends where you see the clamp.

I am really sure that this is not the correct routing for this hose, not even sure if the metal tube is even supposed to be there. I would like to know what this is and the correct way it is to be mounted.

 

[SHO U UP]

Possibly tranny cooler lines but they are definitely not supposed to be routed like that. I'd take a stab and say someone upgraded to larger lines for better flow of fluid but then took a round about way of installing them. Is there a different tranny cooler on the front of the car or can you tell?

 

[SHOMEX]

That hose its completely out of its original position; They really did a crappy job.
I will explain tomorrow but that hose its for the SAI system (I think thats the name of the system) Its a vacuum hose of some sort, it doesn't have any liquid or oil running thru it.

 

[Funmart6]

Possibly tranny cooler lines but they are definitely not supposed to be routed like that. I'd take a stab and say someone upgraded to larger lines for better flow of fluid but then took a round about way of installing them. Is there a different tranny cooler on the front of the car or can you tell?

I have owned the car since 2003 and the trans cooler is the original factory one. The hose in question doesn't have any fluid in it.
Thanks for the help though.

 

[Funmart6]

That hose its completely out of its original position; They really did a crappy job.
I will explain tomorrow but that hose its for the SAI system (I think thats the name of the system) Its a vacuum hose of some sort, it doesn't have any liquid or oil running thru it.

SAI system huh? Yeah the guys that worked on the car really suck and now I am having to fix their f-ups. I had the battery tray/box out for clearance reasons, and had the battery sitting on the black battery tray mounting bracket. I had to remove my battery one day, (to fix my CAI that they f'd up), and found the battery was sitting on top of this hose. I was like WTF, I know that wasn't like that before they "worked" on the car.

I wonder if, by the hose being nearly crimped off by the battery sitting on it, would that cause a transmission leak?
In a previous thread, I mentioned about what I thought was an oil leak that had created a lot of smoke while I was driving one day. Well, as it turns out, it was tranny fluid causing all that smoke. Last Saturday when I went to move the car so I could work on it, the car would not move. I checked my transmission fluid and there was nothing on the stick. After putting in 4 quarts, it was showing in the hash marks and the car drove as if nothing was ever wrong. I have checked, and will check some more today, but I haven't found the source of the leak yet, but I can tell you, the exhaust system is still wet with tranny fluid all the way back to the rear wheels. That really ****** me off because this car's underside didn't have any grime under it at all before the "work" was done on it.
So I am searching for the leak and going to clean the heck out of the underside of the car today if it ever stops raining. I did, however, pull my valve covers off Saturday and fixed a couple of small oil leaks where the factory RTV had failed.

Please explain the SAI system and the correct routing for this hose when you can, and thanks again.

There is a bracket attached to the metal tube at one end, and I have tried many different ways/configurations and nothing seems to be the right way to mount this thing and I don't see anything where it is that it would bolt to, I don't know if those guys left off a mounting bracket for this or not. It would be great to have a picture of how this mounts up, I have searched but cannot find one.

 

[Funmart6]

I am also wondering this. Where the hose was routed near the firewall, it was on top of that little round vent for the tranny. If that vent wasn't able to vent properly, wouldn't it force transmission fluid to seek another way to vent, say out of the dipstick tube? I am just saying, it could be how my transmission fluid was able to be blown out as I was driving the car.
Has anyone ever seen this happen before?

I guess my best bet is to get some rubber hose of the same diameter and a couple of conectors and just configure this thing how I want to. There is a lot of space next to the transmission side pan. I thought the metal tube went there but the bends in the tube just don't match to the width of the sidepan. Oh well, I will figure something out this weekend.

 

[Funmart6]

Got some 3/4 hose today and some connectors and re-routed that hose under the battery tray mounting bracket. Found a transmission line that wasn't secured so I fixed that also. Used some carb cleaner to spray away all the old oil and transmission fluid residue off the exhaust and rear cat. Got under the car with it running, checked for any leaks and found none. When I first cranked it up, it ran really rough, but then smoothed out after a few minutes and was running perfectly. Hopefully the issues with leaks have been resolved. I will drive it for a few days and then check for leaks again.
Getting her all back in shape a little at a time.

 

[SHOZ123]

That hose only has air flowing through it at startup for about 30 seconds. The SAI pump under the battery on the subframe will pump air into the exhaust manifolds through it.