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Vacuum leak

stlBoxster
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stlBoxster Member

stlBoxster

Posted
Posted (edited)

This is on the driver side intake manifold.  I have a vacuum leak I think, and I am thinking this is at least 1 of them,if not the only one.  I can't find in PET where the hose for this connection goes to, only the pn for the elbow.  Anyone know or have any idea's?  The part that is broken is pn:  999-230-498-40

I have a video too if you want to watch: https://dl.dropboxusercontent.com/u/6314076/Boxster/2017-02-01 04.08.56.mp4

 

vacuum%20leak%20-%20intake.jpg

Edited by stlBoxster
stlBoxster Member

stlBoxster

Posted
  • Author
Posted

Well, search and ye shall find.  Looks like it is the brake booster vacuum line & fitting.  Looks like a common item that breaks and causes leaks.  Off to the dealer to pick one up.

ttocs Member

ttocs

Posted
Posted

hmmmm . . . , I'll have to check the condition of mine. Every once in a blue moon I get a "difference" in power that, to me, seems like a vacuum issue. I've never taken the time to inspect the vacuum lines but it's on my list of things to check over. Thanks for highlighting. 

stlBoxster Member

stlBoxster

Posted
  • Author
Posted

Curious if anyone knows.  Is this fitting just a connector or does it have a check valve built into it?  If it doesn't have a check valve built in then is there any reason some other method couldn't be used instead of a hard connection?

Schnell Gelb Member

Schnell Gelb

Posted
Posted

How did you confirm this is the source of the vacuum leak ?What code did you get - P0300 or another ? Is the rough (?) running worse at idle ? Fuel Trims?

There are several potential methods to locate and confirm  the leak. Which did you use?

1. Smoke machine

2. Propane

3. Carb cleaner/starting fluid(!!!)

4. Engine ear

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