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Originally Posted by chylld
Ok i've got a very annoying sound in my car that's only recently started to develop. Car is an 06 civic sedan.
When driving along, I get this kind of humming/resonance sound happening. With the help of some software i've narrowed the frequency of the sound to 275hz; it's very distinctly a single tone.
Here are the clues: - As i drive faster, it gets louder.
- On rough surfaces, it presents itself more.
- The pitch does not change, regardless of how fast I'm driving.
- It still happens when the stereo is turned off.
- I wound all the windows (inc. sunroof) down/up again and that didn't fix it.
- The sound is present throughout the tyre pressure range of 35-39psi
- (possibly unrelated) When i go over harsh bumps, i can hear something loose hitting the underside of the car with a metallic sound.
Any ideas anyone?? |
How many miles on the car? Did you recently change tires or put new ones on? If not, how much life is left in the original tires?
Reason I ask is near the end of the tread life of my stock Bridgestones, they didn't get noisy but started to vibrate pretty bad. Since they only lasted 33,000 miles, I wanted to try something different and not put Bridgestones back on again.
The first set of replacement tires I put on sounded terrible, and almost exactly like what you have described in your thread. I then switched to Yokohama YK520's, and my humming noise from the tires went away.