04-13-2015, 04:35 PM
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#2 (permalink)
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Base Member
Join Date: Aug 2014
Location: Upland, CA
Posts: 43
Drives: 14 370Z TourS MB 6MT
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Quote:
Originally Posted by Popwarfirm2
Hey everyone:
I have heard rumors that if you replace the hfc, or take out the oem, that you start hearing a "hissing" sound. Is this true?
I have also heard that the problem could potentially be an exhaust leak. If so, would it be possible to put an exhaust gasket?
I say exhaust leak because it seems like there are those chappy flanges on the end of the parts...maybe it could be it. If this is the case, should O just buy my own flange and replace them? (maybe a v-band clamp?)
Sorry for the long post with multiple questions, I just want to find someone who has had experience with this type of problem before I take the plunge.
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Well I don't think it's so much a rumor as it is an aspect of our VQ engines. I get the hissing when I let off the gas and the engine is in gear and starts to decellerate. The sound doesn't bother me though, I'm not sure if anything can be done to make that sound quieter if that's what you're looking for, short of keeping stock cats on.
BTW: The sound is not present while accellerating at all.
Last edited by BRM3D1NA; 04-13-2015 at 04:39 PM.
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