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Discussion Starter · #1 ·
I have a 2.4l 2010 Kia Forte SX 5 Speed Auto.

I have installed the TK CAI Intake, I have been in touch with another forum member who also has the same CAI installed (not sure if he has auto/maual).

He informed me to make sure I got the 'T splitter' to vent off from my CAI to my crankcase recirculation and to my tranny vent.

I had no idea what he was talking about after some research I found the following.

Picture 1:
My CAI Installed.

Picture 2:
My Old Factory Air Duct With 1 Outlet (to the crankcase). Room for a 2nd outlet but its been molded shut/flat.

Picture 3:
http://www.forteforums.com/forums/performance-modifications/3218-cais-sx-auto.html
What I think the other forum member is talking about. Now I have no idea is this something kia had made - for example '1st generation forte air intakes' have the Tranmission Vent?

TK Instruction manual says nothing about a T fitting, only to move the auto dip stick, I know I can install a breather onto my crank case and have the CAI fitting go to the tranny vent, but there was no hardware for this in the kit nor any word about it.

Right now im not really worried because my car seems to be running fine, as my model did not have the 2nd line running to the intake tube but what I'd like to know is - was this a design feature on some early fortes or manual vs auto or 2l/2.4l?


Any information would be great. I'm suprised this has not come up in the past.


Thanks
 

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My car has the second hose going to something under the engine. I would love to know what it is.
 

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The one going to the top of the motor is the valve cover breather. Every motor has one and most performance guys with just put a filter on it. Once you go turbo you need to remove it or it will pressurize the crank case anyway.

The one going to the rear of the motor is a 2nd vent line. This is one that you should connect to the tube.

Or as some customers have done. Go to the hardware store and get a plastic Tee and run them both :)

Hope this helps.

Thanks
 

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Forte333 in the third pic is the hose(brownish coloured one) Thats the one that i ran off of with the "T" connector. I dont know if you might have to change your setup after what TK said or not. For me it didnt make any difference in performance or sound before using the T and after. I just figured it was better to be safe than sorry.
 

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Discussion Starter · #8 ·
Hey Corey,

Apparently the 2nd hose goes to the master brake cylinder on 2.0l Automatic fortes only koup and sedan, any other model does not have the 2nd hose:



Kia Tech:

Hahahahaha... "Here I come to save the day!!!"

Damn I love Mighty Mouse.

OK.. so you're all kinda right... ish... some of the cars have two tube/hose/pipe/whatevers on the intake, and some have one. I believe 2.0's have two, 2.4's have one.

If you only have ONE: This is part of the PCV system, and creates a fresh air intake for your cylinder head so the gasses produced by the oil can be burnt off, and not released to the atmosphere.

If you have a second tube, and it's hooked up to a thinger with two other tubes, and one of those tubes goes to the master cylinder... that's a vacuum booster. Basically at higher RPM the vacuum created by the manifold is lower, so this extra booster helps to maintain solid braking/repeated pedal pumps while cruising. It's in quite a few cars, and it's a really neat little thing. Right from Kia:
Quote:
..."brake booster intensifier which is also found in some other Kia vehicles. The brake booster intensifier enhances brake feel and enhances braking performance at highway speeds therefore contributing to overall vehicle safety... ... The simple device uses a venturi effect to increase brake booster vacuum as engine speed increases."
IS VERY IMPORTANT TO KEEP THAT CONNECTED TO YOUR INTAKE!

So in summary: Kia put those tubes on the intake for a reason. You should darn well keep 'em there. The environment and your own safety are on the line, here.
 
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