1993 Pontiac Trans Am Gen II LT1 T56

My buddy was visiting from up state AZ and I decided to give him a ride in my T/A. I was doing a 1st gear pull at 15 mph into 2nd gear when a loud clunk happened and grinding sounded off on my slow decel, now in nuetral. I left the car running while I stopped, looked under, and checked for transmission gear fluid, holes, and metal. The car was running and made a grinding/metallic sound while idling in nuetral; when clutch is in, it makes a slightly deafened version of that sound. I turned off the car and put it in each gear, attempting to push the car to see if it would move while in gear. Car did not move while in gear so I dont see my transmission being blown. Putting it in gear is fairly difficult while the car is off and the clutch is in. Is this an input shaft issue? Clutch? Throwout bearing? The clutch does slightly shake while idling in nuetral.

Here is a link to a video of the car idling and pressing the clutch in:

Any help would be appreciated

 

A noise getting louder when the pedal is depressed, could be the release bearing.

If you press the clutch and put it in gear, vehicle stationary, is there any noise ? There should be no moving parts in the gearbox at this point.

 

I havent attempted to put it in gear while the car is on yet. Im afraid it might throw the car forward or grind. Im not even completely sure the clutch is still intact. Ill attempt it but will it blow my trans if I force it into gear without a functional clutch assuming the clutch is fucked?

 

then just try and start the car in gear with clutch depressed.

But if it doesnt want to go into gear...it wont go into gear.

 

So in theory, if the clutch is bad, starting the car in gear with the clutch in should essentially just stall after its started, right? By depressed, do you mean with the clutch pressed in?

 

depressed means foot down, yes.

All I'm saying is that with engine running, foot down, car in gear...there are no moving parts in the gearbox. So if there is still noise....the problem is unlikely to be in the gearbox.

The fact it gets louder when your foot is down, would suggest at least a release bearing issue, but there may be others.

Either way, trans needs to come out

 

Much Thanks! Ill look into it hopefully tomorrow. Thank you for your help

 

You know what, now that I think about it, when this issue first happened with the car, I also had an ignition issue at the time that would make the car just crank and crank and crank but never start. I attempted to turn it on, 1st gear, clutch in, and the car just moved forward while cranking. The clutch had the be the issue but where is the issue is what im worried about.

 

You're gonna want to check the clutch/throw out bearing/ input shaft.

 

Noise with clutch in at dead standstill can also be pilot bearing, which keeps the trans input shaft in line with crank center line. I recommend replacing pilot while it is out also.

 

It ended up being a grenaded clutch. The clutch exploded and ended up damaging my flywheel and putting a fracture all the way through my bellhousing. I ended up replacing everything. Thanks for all the help guys!