Originally Posted by 02 4.6
yes sometimes that does make the problem go away. is this the sign of a bad clutch?
It is, but a bad Throw Out Bearing will typically make noise while the car is sitting idling. I would definitely try to narrow down where the noise is coming from before removing the transmission.
To answer your question from the other thread, replacing the TOB is basically the same as replacing the clutch, as far as labor goes. A clutch job costs around a thousand dollars, depending on the quality of parts used.
I had a mysterious, intermittent, noise on my car a while back. It rarely made the noise while idling, and when it did, it would stop before I could get the hood open to try and locate the source. It was kind of like a French Horn sound, is the best way that I can describe it. I found out, from a forum member, that the Idle Air Control valve gets worn out over time, and the plunger inside of it begins to vibrate and create a sort of low humming noise. Another symptom that it had was a very erratic idle. So it was a fairly easy diagnosis, and I replaced the IAC. It solved the idle problem, and the humming noise.
It is very difficult to diagnose noise problems over the internet. Consider any information that you receive on here to be merely ideas of where to start looking for the source of the noise.