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Old 04-01-2013, 07:51 AM   #1
Buellrunner
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Default Wastegate fluttering sound

Hi all,

I recently started getting wastegate flutter noise out of the blue. 2004 wrx 185k Downpipe Tune Stock exhaust My car makes full boost no problem. I have been reading that this noise is nothing to worry about and that many people experience it. Is this accurate?

Thanks for any advice!
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Old 04-01-2013, 08:15 PM   #2
art@grimmspeed
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I am trying to make sure I understand you. You have downpipe with a tune and are running a stock catback. Is that right?
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Old 04-01-2013, 08:27 PM   #3
Buellrunner
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Exactly - actually it's a stock catback from a 2006 if it makes any difference.
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Old 04-04-2013, 02:41 PM   #4
mdean12
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Started to notice the same thing after installing an uppipe, downpipe, catback, and an AccessPort Stage 2 OTS map. Seems to flutter when I get into boost a little past 1/4 throttle. When I really push the car hard and get into higher boost, it goes away. Checked to make sure the turbo to downpipe connection was torqued to spec. Bumping this thread for any ideas.
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Old 04-04-2013, 02:42 PM   #5
silvercookie
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It was probably always there and now you can just hear it more due to the downpipe.
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Old 04-04-2013, 03:00 PM   #6
Buellrunner
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Just had mine diagnosed and repaired. My fluttering sound came from my exhaust temp sensor not being secured properly into the pipe. Went away as soon as it was secured properly.
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Old 04-04-2013, 03:35 PM   #7
mdean12
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I removed the header portion of the exhaust when I installed the new uppipe. Pretty sure I didn't knock the engine temp sensor around, or bang it against anything in the process. The noise sounds like it's coming from right under the hood in the upper most portion on the passenger side. Exhaust temp sensor is way down there in front of the car, tucked right against the plastic shielding for the wheel well.
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Old 04-04-2013, 04:45 PM   #8
danger1138
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I think u here it more cuz of the aftermarket downpipe.
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Old 04-05-2013, 07:55 AM   #9
Gamble_WRX
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Easy fix, get an EWG. harder fix, adjust the actuator arm. it shouldnt be any danger, just an annoyance.
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Old 04-05-2013, 08:58 AM   #10
WRX_02_227
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Quote:
Originally Posted by silvercookie View Post
It was probably always there and now you can just hear it more due to the downpipe.
Exactly!
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