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Old 10-07-2012, 02:25 PM   #44
Scooby Newbie
Member#: 69300
Join Date: Aug 2004
Location: San Diego, CA
2012 WRX
WR Blue Pearl


Basically, to me, it sounds like various people have thrown various parts at this sound and have gotten mixed results. I've read posts where people indicate replacing the TB hose resolved the issue (or didn't), where a new BPV fixed it (or didn't), where an improperly seated air filter or unclipped airbox was the problem (or wasn't) it appears potential problems indicated by this sound [and the solutions to those problems] are many.

Some seem to think the wastegate actuator could be making this sound, or even a faulty downpipe gasket. Someone suggested cracked intercooler end tanks earlier in this thread, too.

So, potential solution? Replace all the above mentioned parts...

scapone4: When you removed the stock hose, was it folded/collapsed as shown in the photo posted by APM Racing earlier in the thread?
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RuinerXL is offline   Reply With Quote