The spoiler expanse sound is a "pop" sound like an acorn hit the back of the car. The gas tank pressurization system (in the right rear) is a more rhythmic sound, like a small buzzing/banging sound.
Sound from rear of car
I 've had my 2011 for nearly 3 years and I know this sound is normal, but never really cared what it was until now. Usually within the first few minutes of my morning drive, there is a sound, sometimes two or three times which sounds as if you ran over a piece of rubber and it hits the wheel well. I always figured it may be something to do with the gas tank pressurization. Kind of like a low pitched thump or thud type noise. Pretty distinct noise, I'm sure any gen 1 owner will know the sound.
Anyway, what is it for sure???
Anyway, what is it for sure???
1 - 3 of 18 Posts
Depends. Is the car experiencing enough if an external temperature change between night and day to force the spoiler's expansion/contraction? Perhaps your spoiler attachments are over-tightened, causing too much resistance to expansion movement, or maybe there is some dust/grit buildup interfering with the "sliding" action. Some dealers have removed the spoiler, cleaned, installed slip tape and snugged the attachment just enough but not too much.I hear this 'acorn' way too often. Is it normal to hear this almost every day?
Seems like a good test to possibly eliminate one potential cause. Let us know how it goes.I'd Be willing to bet good money that I can remove my spoiler and it will still make the same noise daily.
1 - 3 of 18 Posts
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