I am looking to replace some OEM hoses with braided stainless steel ones. The one hose I am not sure about is the one that goes from the side of the upper plenum to into the side of the battery compartment. When I took it off to install the new hose, I noticed it has some sort of regluator in it. If you blow into it, the air will only travel one way. I have seen some engine bays that look like they have just standard hoses connect there. What is this hose/regulator for and what will happen if I use a non-regulated hose?

 

It would help if you could take a picture of the hose/regulator and post it?

 

I guess it is more of an internal valve than a regulator. There is only one hose where I described, but I will try to find a pic.

 

here...

 

Among other things, that provides vaccuum for the brake booster. If you use a non regulated hose, you will lose that brake booster assit if you try and use the brakes immediately after hard acceleration. The valve in there is a check valve, and only lets pressure travel one way

 

can you buy one of those valves and put it in a regular hose?

 

that vacuum hose runs all the way behind the engine compartment and into the brake booster. Make sure you use a check valve on the line if you are going to be replacing it.

 

thanks for the info guys, where can I find one of these check valves?
can it be put into a normal hose?

 

Call the dealer and ask for the brake booster check valve.It also might only be sold as the hose assembly......i am not sure about that.