Help - 200TQ big boost leak on trip

Kneale Brownson kneale at
Fri Jun 9 16:48:11 EDT 2006

That's a molded hose with a stub hose into it.  Part #  034 145 746N
Probably specific to the 91 3B application.  A quick search of several
WorldPack type sources shows no availability.

Where are you in MI?  I have a spare used lower intercooler hose you could
borrow.  I'm in Traverse City.

At 02:39 PM 6/9/2006 -0400, Kurt Deschler wrote:
>I tested the check valve and it was allowing some flow in the opposite
>direction so I replaced it. Howerever, this has not solved the problem. I
>will pull off the lower intercooler host tomorrow and take a look. Anyone
>know if that is a dealer-only part or if a generic silicone hose will 
>fit? Ideally I would like to replace before I leave Michigan.
> 	-Kurt
>On Fri, 9 Jun 2006, Brett Dikeman wrote:
>> On Jun 8, 2006, at 6:38 PM, Kurt Deschler wrote:
>>> We are on our way from massachusetts to michigan and having a problem with
>>> the 200. Under boost, there is a surge of air into the cabin through the
>>> vents.
>> Does the 'surge of air' come from flaps changing position?  If so, sounds 
>> like the one-way valve on the vacuum line off the manifold to the CC system 
>> is broken.
>> Brett
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