Something of a Whirring noise coming from resonance tube after trd intake install? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Waffles · 03-12-2014, 05:33 PM

Hey all,

I just installed my TRD intake for this car yesterday along with a friend's help. Everything is good, but now I notice something like a whirring/hissing sound coming from the resonance tube down by the passenger footwell.

Part of the install had me remove the sound generator that attaches to the stock intake, and capping it off with a supplied rubber plug. Does anyone else who also had the TRD intake installed have a similar issue to what I'm experiencing? No check engine/ warning lights of any kind. This can also just be the sound of some component spinning that I couldn't hear before due to all the cabin noise generated by the sound tube.

SkAsphalt · 03-12-2014, 06:55 PM

you are probably just hearing induction noise

tennisfreak · 03-13-2014, 12:09 PM

I have the TRD intake.

You are likely experiencing one of these:

The intake naturally generates some noise especially when you lay your foot in it. This is part of getting a CAI in the first place. Almost all CAI systems make intake noise.
The rubber plug from the sound generator tube delete fell out and you are hearing noise directly coming in from the engine bay.

355rockit · 03-15-2014, 10:53 PM

I would recommend completely removing the resonance tube and capping the hole from the inside. I then put electrical tape over the opening on the engine side. I don't have the noise you describe after my TRD intake install..

White64Goat · 03-15-2014, 11:35 PM

03-12-2014, 05:33 PM	#1
Waffles Junior Member Join Date: Mar 2014 Drives: 2013 FRS Location: Seattle, WA Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Something of a Whirring noise coming from resonance tube after trd intake install? Hey all, I just installed my TRD intake for this car yesterday along with a friend's help. Everything is good, but now I notice something like a whirring/hissing sound coming from the resonance tube down by the passenger footwell. Part of the install had me remove the sound generator that attaches to the stock intake, and capping it off with a supplied rubber plug. Does anyone else who also had the TRD intake installed have a similar issue to what I'm experiencing? No check engine/ warning lights of any kind. This can also just be the sound of some component spinning that I couldn't hear before due to all the cabin noise generated by the sound tube.

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03-15-2014, 10:53 PM	#4
355rockit Senior Member Join Date: Oct 2013 Drives: Sci FR-S, Fer F355, Toy Highlander Location: San Marcos, California Posts: 238 Thanks: 40 Thanked 115 Times in 60 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I would recommend completely removing the resonance tube and capping the hole from the inside. I then put electrical tape over the opening on the engine side. I don't have the noise you describe after my TRD intake install..

03-15-2014, 11:35 PM	#5
White64Goat Senior Member Join Date: Jun 2012 Drives: 13 BRZ CBS LTD MT, 02 WRX Location: Fred. Co. Md. Posts: 2,351 Thanks: 65 Thanked 1,113 Times in 628 Posts Mentioned: 19 Post(s) Tagged: 1 Thread(s)

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