Need help with new camaro

[Jbaker901atu]

Recently purchased a 2011 v6 camaro standard from a dealer. Has 45k miles. Noticed a very subtle but rapid low pitched knocking. Soundo like it's coming from the glove box area of passenger side and almost impossible to hear outside of the car, you really need to be in cabin. I don't hear it when I accelerate and It doesn't matter in the ac/heater is on or not. Did the old screwdriver to block trick and didn't hear any enhancement. Still owe 10k. On it so I'm freakin out a little. Still under powertrain warranty for a year. Took to local mechanic, saud he thinks its exhaust or catalytic. Also, its on and off, must be quiet to hear it.Thank you.

[camaro1350]

I don't know if this is your case or not. Last month I replaced the air cabin filter and I heard a rattle coming in the area of my glove department. Sounded like it was vibrating on the windshield. You could barely hear it as well but was there. I took of the cover and reinstalled it and the sound was gone. Like I said don't know if your noise is the same as mine but worth a try.

[omgitsmiketuck]

I recently installed lowering springs and had a "rotational knocking" at slow speeds, especially under braking. It turned out to be a missing caliper bolt from my front right caliper. I'd hesitate to believe a DEALER would miss this... but its one cause for a knock at low speed

[omgitsmiketuck]

Originally Posted by camaro1350

I don't know if this is your case or not. Last month I replaced the air cabin filter and I heard a rattle coming in the area of my glove department. Sounded like it was vibrating on the windshield. You could barely hear it as well but was there. I took of the cover and reinstalled it and the sound was gone. Like I said don't know if your noise is the same as mine but worth a try.

My "rattle on the windshield" was the cover to my rearview mirror. I took the plastic cover off and haven't had an issue since. Before I figured out that that was the issue, I thought I had a blown passenger door speaker or something.

[Evergreen6]

Originally Posted by Jbaker901atu

Recently purchased a 2011 v6 camaro standard from a dealer. Has 45k miles. Noticed a very subtle but rapid low pitched knocking. Soundo like it's coming from the glove box area of passenger side and almost impossible to hear outside of the car, you really need to be in cabin. I don't hear it when I accelerate and It doesn't matter in the ac/heater is on or not. Did the old screwdriver to block trick and didn't hear any enhancement. Still owe 10k. On it so I'm freakin out a little. Still under powertrain warranty for a year. Took to local mechanic, saud he thinks its exhaust or catalytic. Also, its on and off, must be quiet to hear it.Thank you.

More information is needed. You said your car is "standard" which I assume you mean to say it's a manual transmission?

Is the noise present when the car is moving? Stopped? Both?

Do you notice a difference with the clutch in, versus the clutch out?


Your mechanic said it could be "exhaust" or "catalytic" --neither of which are moving parts and would probably indicate a nuisance rattle underneath the car. Are you able to climb underneath of it and see if there's some kind of damage/loose parts/things that look out of place?