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Discussion Starter #1
So driving my '15 s today we heard a small pop and then whooshing. It sounds like there is a boost leak. My hunch is that the diverter valve lost the vacuum. I have not been able pull the bumper off to check. I have the last generation Flat6 diverters. Does this sound right? I was not able to see anything obvious on the top of the motor.

Where else should I look?
Should I order the new EVOM diverters?

help...
 

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Were these installed in the same orientation as OEM? If so, a vacuum leak would likely prevent them from opening but would have minimal impact on how much boost they hold.

It sounds like it may be a bad internal seal.
 

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Discussion Starter #7
I am replacing the diverters with the EVOMs. I will check the throttle body clamp. I am not sure it is that since it is still building 10lbs of boost.
 
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