Phhh sound when changing gears
11-17-2007, 08:09 AM
#1
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Phhh sound when changing gears
I just purchased a 2002 225 Quattro last week. Although the car seems to work fine, it does this phhhh sound everytime I change gears. I've read that is typical of BOV but the stock TT doesn't have such a valve. I looked under the hood and I saw it still has the stock Bosch diverter valve. I've read that the diverter valve should have a breathy sound. The only modification that I know that has been done to the car is the installation of a Neuspeed cold air intake.
What could be causing this sound? Is it the proper sound of a diverter valve?
Michel
What could be causing this sound? Is it the proper sound of a diverter valve?
Michel
11-17-2007, 08:27 AM
#4
VROOOOMMM PSHHHHHH!!!!!!! I guy I worked with gave me one of those intakes
I put up with it for about a week. I have a TT 225 Airbox if you are in need of one, I was going to install a TT K04 kit on my car but gave up, LMK....
11-17-2007, 08:47 AM
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CAI allows the sound to process up to the driver.
One of Steve's VTDA really accentuates this.
If you're concerend, get a new Strat or Forge DV and VOILA! Positive control.
If you're concerend, get a new Strat or Forge DV and VOILA! Positive control.
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11-17-2007, 03:35 PM
#8
Open element filters like that are all loud.....>
A big part of the stock airbox is Noise control so you barely hear it with OEM equipment. Depending on the CAI there are levels of sound available depending on what you choose...
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