Interior Buzzing Noise

Gerg

My '09 Sport/Touring has developed an increasingly annoying and common rattle. It seems to be coming from the headliner somewhere above the passenger seat, but I swear it sounds like a carpenter bee is stuck up there, trying to escape every couple of seconds. Even worse, is that I can't seem to nail down where exactly the noise is coming from. Since I'm usually driving when I hear it (and I'm almost always the only one in my car) I hesitate to give it my full attention. It doesn't buzz at idle, and it continues when I turn the stereo off, so it's not coming from the speakers.

I dynamatted almost the entire interior trying to rid myself of this problem before, and even wedged down the rear of the headliner to try to get as much of it as I could up there near the antennae, but it's been useless. The sound always returns.

Has anyone else had this problem? Is there a solution that does not involve removing the entire headliner? (I've read that this is somewhat dangerous in terms of the airbags).

scottIN

This is going to sound crazy, but with the way the sound bounces around, it could be coming from anywhere.

When you hear it, reach over the steering wheel and grab the backside of the gauge cluster and squeeze the top cover and bottom piece together. I had a buzzing that I thought was from higher up, but turned out to be the two pieces of the gauge cluster. The sound was bouncing off the windshield.

SouthArk370Z

Find someone to ride along and give them a paper towel tube, short piece of garden hose, &c, and have them hold one end to their ear while moving the free end around.

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madwi

I am so going to make people do this while riding around, even if there is no squeek or rattle

Gerg

Thanks. I've noticed that sometimes it seems to be coming from slightly other areas. I'll give your idea a try.

somms

My dome light assembly buzzes in tune with my FI exhaust.

King_Ch1cas

I have a rattle on my driver side door and the rear right side of my trunk driving me insane

Good luck!

barncobob

I think its called drone bad enough to vibrate items in car including ur eardrums.

somms

The drone is pretty minimal
If I keep it out of the 2k-2.5k range. But there's no denying there's serious vibration at all times.

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DYNAZOR

Download an audio frequency generator app to your smartphone.
Then manually sweep the output from the lowest frequency tone to the highest audible frequency tone (about 20,000 cycles per second), while playing the signal through the car's stereo. Somewhere between the lowest frequency and the highest frequency you are likely to notice the offending noise to be most apparent. Then while keeping the frequency set at that point and the offending noise being rather constant start poking/pressing/feeling around the various surfaces within the car's interior to home in on the source of the noise.

The app I use is called Signal Generator (I think), and the basic app is free (I think).

AV8rZ

I just found threads about this last night because I have the same thing. Mine is coming from the door and many others did as well. They say it's the window regulator assembly. Many people replaced it and noise went went away. I will be ordering mine and replacing it soon