Transmission grinds, but first pops out. Trans mount or slave cylinder?

[DSMRevolution]

Here is the problem. Hopefully we can come up with a diagnostics. I also am running GM Syncromesh and I recently put in a new master cylinder along with the Symborski Shift Kit. After replacing the master cylinder and bleeding the system, the clutch fluid was nice and clean, but now its already turning black. Also everything from shifter to transmission is tight and linkages are adjusted correctly. I have an ACT2100 and the flywheel was surfaced by the previous owner. Who knows the step height on this one (but I assume it was correct). Anyways...

At a stop light, 2 out of 3 times the transmission will pop out of first gear. It doesn't grind, just pops out. I finally get it in gear and go.

When reversing from my drive way and its time to throw it into first, I usually put it in first before the car is not fully stopped. I ALWAYS know it is in first gear then. It will never pop out right after reversing and engaging it before a complete stop.

At 65mph, sometimes I will throw it into third gear and it will grind until I put it in gear really slow or go to the next gear.

I also have this clunking sound that sounds like it might be the transmission mount. I am not sure though how to check that. Anybody? Is this part of my problem?


Does this just sound like the typical DSM transmission? Just needs a rebuild? Thanks for the help!

 

[DSMRevolution]

Nobody knows?!?!

 

[HokieDSM]

Sounds like internal transmission issues to me. The mount is pretty easy to check, it's right out there in the open on the passenger side - if all the bolts are still in there to the rest of the engine, you should be able (in theory) to just unbolt the mount to actually examine it if you wanted to do so.

Other than that, sounds like synchroniser or input shaft bearing issues, time to crack that bellhousing

 

[DSMRevolution]

Originally posted by HokieDSM
Sounds like internal transmission issues to me. The mount is pretty easy to check, it's right out there in the open on the passenger side - if all the bolts are still in there to the rest of the engine, you should be able (in theory) to just unbolt the mount to actually examine it if you wanted to do so.

Other than that, sounds like synchroniser or input shaft bearing issues, time to crack that bellhousing

Thanks, but I am not sure what you mean by the quoted section. Anyways, I am going to pull it soon to do a ACT2600 (I have the 2100, but I dont like it anymore ), rebuild the engine, and I guess I'll have to rebuild the transmission too. Thanks and have you ever rebuilt a AWD transmission before? Thanks again

 

[revditup]

My car was doing the same thing. I think I found the problem though..
Did you put a shim behind the ball behind the clutch fork???

All you need is a single lockwasher on it, that helps your slave get a little more leverage.

Aslo if your fluid is turning dark quick then get a new slave. I tried to rebuild mine but it still wasn't good enough.
Rebuild kit was 15.00
New slave from Conecelli was 48.00 (worth it!)

Hope this helps

 

[DSMRevolution]

I don't recall shimming it. I will double check that. And I will get a new slave. Thanks for the help! I'll let you know what happens.

Originally posted by revditup
My car was doing the same thing. I think I found the problem though..
Did you put a shim behind the ball behind the clutch fork???

All you need is a single lockwasher on it, that helps your slave get a little more leverage.

Aslo if your fluid is turning dark quick then get a new slave. I tried to rebuild mine but it still wasn't good enough.
Rebuild kit was 15.00
New slave from Conecelli was 48.00 (worth it!)

Hope this helps

 

[redX90]

I was wondering what you found with your shift problem. I have a 92 TSI AWD that does the exact same thing. I also use GM Syncro Mesh, cables good adjustment, solid mount shifter bushings.

 

[DSMRevolution]

Originally posted by redX90
I was wondering what you found with your shift problem. I have a 92 TSI AWD that does the exact same thing. I also use GM Syncro Mesh, cables good adjustment, solid mount shifter bushings.

Shifts GREAT now! I had to rebuild the transmission. The previous owner took it to some crap chop shop to get it rebuilt and seriously messed my transmission up. I got it rebuilt locally and spent about $2000 total. $500 was labor, so that should give you a idea of how bad it was. My gears were totally gone, shims were off, hub+slider were shot, synchro, my list was endless. I hope you get yours figured out, but it most likely needs a rebuild. Good luck though!

 

[rabidfox]

I had the same issues with mine. The synchros were gone, the shifter forks were so out of spec that when it shifted gears it didn't engage the synchros. The little pads on the shift fork were nowehere to be found and first gear was demolished. Luckily I bought an aftermarket warranty, but getting a new tranny out of them was like pulling teeth, they wanted to blame "fast shifting and an aftermarket clutch" on the shifter forks. assholes.