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2010 535i: Looking for some opinions with what this noise is. I have set my JB4 DWP to 100. Take a look at my video and the sound that is made when the vacuum reaches 20 Hg. I believe it is coming from the vacuum canister but I am not sure. I have teed into the Westgate line. Here is the video link:
https://youtu.be/n240dR8Y5DE
 

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barry,

For the uninitiated, what is DWP 100? Do you know if there is a relief valve for the vacuum canisters? That would be my initial guess.

Good luck
Fred
 
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