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:
Any ideas anyone??
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??