I had my TL-S in park and the window open and was revving the gas just to hear the engine at higher RPM's. When i released the gas, I heard this strange sound coming from the engine. It happened every time I took my foot off the pedal.. Don't know how to describe except it sounds like a really high-pressure gas being released. Anyway, I stopped by the dealer on my way home from work and the mechanic took a look at it. He said it's normal and it's been that way since the 99's came out. He showed me the same thing on a brand new TL-S on the lot. Made me feel a whole lot better. Point of the story is, if you hear this sound-- don't worry, it's normal. I apologize if this is old news, but I'm sure someone will benefit from it
Happy driving!

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2002 Satin Silver TL-S w/Navi

 

It is probably the VTEC screaming!!

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2002 Black on Black TL TypeS