Clunk noise while changing gear

[ForcedFirebird]

^^^ yup, specially with a lopy motor.

[Wh33lhop]

Prob throwout bearing...

that's what i've been thinking... but my clutch never slips and seems like it's in fine shape.

What are you guys on? Throwout bearings are only used when you're depressing the clutch pedal. If you press the clutch in and THEN it makes the noise, and never otherwise, then it's your TOB. A bad throwout bearing won't make your clutch slip or feel "crappy" in general. It'll just make bearing noise.

If you're in neutral, and it only makes a bearing noise with the clutch out it's probably your input shaft bearing (or possibly your pilot bearing). Getrag 260s have a natural tendency to just rattle in neutral with the clutch out, presumably because of input shaft bearing design. But it's normal.

[91eson318is]

Prob throwout bearing...

that's what i've been thinking... but my clutch never slips and seems like it's in fine shape.

[Naplm00]

Had this issue, was my exhaust

[RainierHooker]

I have the EXACT same problem in my E46 330ci...
When i get to the bottom of it, i'll let you know what my verdict was.

EDIT: the clunking is only when the clutch is out at idling RPM. Nothing when the clutch is in or at higher RPMs.

Prob throwout bearing...

[91eson318is]

when im not pressing on the clutch on idle i hear clunk nice and the car is vibrating. Is this a tranny issue?

I have the EXACT same problem in my E46 330ci...
When i get to the bottom of it, i'll let you know what my verdict was.

EDIT: the clunking is only when the clutch is out at idling RPM. Nothing when the clutch is in or at higher RPMs.

[HarryPotter]

Climb under your car...

My guibo was in fine shape, along with the CSB from what I could see. I'm pretty firm on it being the RSFB's.

[KenC]

Climb under your car...

[HarryPotter]

I had a noise like this once. Ended up being a loose diff.

What do you mean loose diff? Could you explain some more? It is quite intriguing. I would like to know what to check before I go balls out into a rear end refresh.

[graphikg]

I had a noise like this once. Ended up being a loose diff.

[RainierHooker]

My car also makes a noticeable noise when I shift -- particularly if I am not so smooth with letting off the gas and hitting the clutch.

However, when I'm cornering, she's tight as could be. I never hear any clunks over bumps.

This is probably either your center-support-bearing (replaceable) or your U-joint bearings (have to replace the drive-shaft).
Get your car up on jackstands and try to load and rock those two parts. A lot of radial play in either component means it needs to be replaced. Check your guibo while you are under there too, lots of cracking and delamination denotes wear.
Failures of these three parts are systemic, that is, one part being bad will lead to the others getting bad too...

[llll1l1ll]

My car also makes a noticeable noise when I shift -- particularly if I am not so smooth with letting off the gas and hitting the clutch.

However, when I'm cornering, she's tight as could be. I never hear any clunks over bumps.

[HarryPotter]

You could drive the car around and take corners, accel and decel and pay attention to how the car feels and what sounds it makes. The rear subframe bushings would make a clunk and would also cause the back end to feel loose and not planted under the car.

Oh lard. I don't even want to know my rear subframe bushings are bad. Do not want to replace, especially in this crap weather. I am pretty sure mine are pretty shot. The back end gets pretty squirrly. But that could also be the complete shit for tires I have wrapped around the rims in the back.

[Mike325]

You could drive the car around and take corners, accel and decel and pay attention to how the car feels and what sounds it makes. The rear subframe bushings would make a clunk and would also cause the back end to feel loose and not planted under the car.

[HarryPotter]

Throwout bearing sounds likely, the clunking from gear to gear could be several things. I would check your flex disc, your center support bearing, subframe bushings and rear trailing arm bushings, and rear shock mounts.

Is there a way to check your rear bushings besides looking at them? Some type of "test". Cause when I look at them they seem alright. I also have a similar problem. Been the same for a while. You can't really see the subframe bushings to well.