[Z06] Bought preowned Z06 slightly whistling noise
12-26-2011, 01:44 PM
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Bought preowned Z06 slightly whistling noise
Hello, I traded in 2010 Camaro as for a 2009 Z06 with 15,000 miles. I love the car, but I noticed this whirring/ whistling sound above 65 MPH when I press the throttle at all. Is this normal, and no there is no supercharger. Everything is stock.
12-26-2011, 01:48 PM
#2
Team Owner
I have a 09 Z06 and don't have any noises like you have.
Is it speed sensitive or RPM sensitive?
Is it speed sensitive or RPM sensitive?
12-26-2011, 02:00 PM
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Thank you for replying. Above 65 MPH any throttle input gives this whistling, whirring sound even a little throttle, whether its low rpm or high. I can't even tell if its coming from the back of front.
12-26-2011, 02:08 PM
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Team Owner
You are saying that above 65 MPH you have the noise, no matter if you are in 4,5 or 6 gear. As you go faster, does the noise speed up?
12-26-2011, 02:42 PM
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Yes, it sounds very similar to the whir of a supercharger. No matter the gear, as long as I am travelling fast ~ 65 even a tiny bit of throttle with cause this sound and it stops a split second after I let go of the throttle. The noise does not speed up, it is a constant noise, sounds like air rushing through something.
12-26-2011, 03:18 PM
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sounds like it could be a wheel bearing, transmission bearing, or more likely a ring gear in the diff. How many miles on your car? I would find a reputable GM dealer if still within warranty and have it repaired.
12-26-2011, 04:09 PM
#7
Team Owner
Yes, it sounds very similar to the whir of a supercharger. No matter the gear, as long as I am travelling fast ~ 65 even a tiny bit of throttle with cause this sound and it stops a split second after I let go of the throttle. The noise does not speed up, it is a constant noise, sounds like air rushing through something.
As mentioned above, the ring gear could be suspect, but I would think it would be more speed sensitive.
Last edited by JoesC5; 12-26-2011 at 04:11 PM.
12-26-2011, 04:29 PM
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I am schedule to bring it in Jan 2nd, I don't feel like driving to the dealership I bought it with a hangover, but I must (dealerships an hour away) I highly doubt the throttle body has been ported because everything else is stock, no CAI, no exhaust, nothing.
12-26-2011, 07:50 PM
#9
Racer
09+ cars are sensitive to this sound when you add any air intake mods. 09+ cars use a throttle body with a reverse rotation compared to older models. I would always hear the noise anytime you go above 1/4 throttle though no matter what gear or road speed, stock there should be no noise.
