Diverter valve install issue please help!

[Moonman22]

So after spending my night underneath my b6 installing my new diverter valve I'm lost to as what I did wrong. It's making a whining sound as boost builds it's squeling loudly and definitely doesn't sound right. What'd I do wrong ?

[Schwebe]

What kind did you get? If it was like mine (Forge Splitter) you need to install it pretty much reverse to your stock DV.

[Moonman22]

I'm not sure of the brand my friend gave it to me. I'm nearly positive I installed it correctly. On the first pull after installation it made a nice whoosh sound and then on the second a strange popping sound occurred like something had popped off. After that it is now making the loud whine as boost builds. I checked all the hoses going in to valve, what do I do now?

[Schwebe]

Sounds like something popped off some where causing a big boost leak which would explain your noise. Do you have a boost gauge to see if your building anything?

[Moonman22]

No I don't have a boost gauge. How else would I be able to tell?

[Schwebe]

I would make sure your hoses that you installed are actually tight, they can look like theyre on but still be lose enough to let air by when pressure is being built.

[Moonman22]

Gotcha I'm gonna check again. Just to make sure the bottom hose should be connected to the outlet that has the silver valve thing in it correct?

[Schwebe]

It's been awhile since I installed mine, but there should be a valve that you can press to move up and down, that should be the side getting the boost, can't recall if that's the bottom hose on it or not. Trace the bottom hose back and see where it's going.

[Moonman22]

Okay I just took it off and now am re-installing to make sure everything is Good.

[Moonman22]

If it was on incorrectly where would I have caused a leak?

[texasboy21]

Test the DV while you have it off to make sure its functioning properly.

[Moonman22]

I took it off this morning dissasmabled it and put it back together everything seems good but I put it back in and still same issue. Any ideas?

[Moonman22]

http://i1215.photobucket.com/albums/...s/IMG_1374.jpg
This is the DV I believe I have. It should be in the car with the vacuum line sticking upwards correct ?

[Moonman22]

Anybody? My car isn't driveable and I've tried everything ik. I almost feel like I blew of a hose initially when it was installed incorrectly is this possible?

[old guy]

First test your DV to make sure it functions properly. Clicky click® If it does the next step would be to perform a boost leak test to see if you have a major leak somewhere. Clicky click2®

And just curious....Where is Longmeadow?

[Moonman22]

I'm gonna run those test when I get home and Longmeadow is a tiny suburb in western MA I'm on the border of CT

[old guy]

I'm gonna run those test when I get home and Longmeadow is a tiny suburb in western MA I'm on the border of CT

Just curious. Longmeadow is also an area in Western MD. My back yard.

[Moonman22]

Ahhh gotcha that would've been cool I need some advice I don't have any Audi friends near me yet :/

[old guy]

Here's another quick test to perform before you go for a full boost leak test. Simply remove the vacuum/boost line on the front of the intake manifold that connects to the N249 and then to the DV. Use an air nozzle to apply pressure to the hose. There should be no air at all going into the line. If there is you will need to find the leak and make a repair.

[Moonman22]

Ok will do later and let post results. Before I attempted to install the DV there was no leaks at a,ll could I have caused a pipe to tear or hose clamp to pop off by incorrectly installing it the first time?

[old guy]

The diverter valve can be installed in the "normal" or "reversed" position. It will work either way. So no, you didn't do anything to cause damage by installing it in either direction.

It's possible that during all the twisting and pulling on hoses to install the DV that you opened up a crack or split in an existing hose.

[Moonman22]

Gotcha I'm gonna check the valve and go from there i really hope it's just that. If not I'll begin to look for the leak.

[Moonman22]

The valve is functioning correctly just did the test and it holds a vaccum. Where should I start looking from here ??

[old guy]

The valve is functioning correctly just did the test and it holds a vacuum. Where should I start looking from here ??

Post #19. If that checks out do a boost pressure test as linked in post #15.

[Moonman22]

Ok I'm
Gonna put the DV back in and try that

[Moonman22]

Looks like I have a huge leak somewhere :/

[Moonman22]

At idle I can feel air rushing from somewhere around the right side of the engine

[G-Ride]

At idle I can feel air rushing from somewhere around the right side of the engine

Probably from the block breather tube off the top of the oil filter housing. They tend to decay pretty rapidly.

Trace back from the top of the filter housing starting at the first hard pipe.