Drivetrain Transmission, LSD, Clutch, Driveline, Axles...

Tranny dying??

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Old Mar 28, 2011 | 04:34 PM
  #26  
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Originally Posted by terminator0723
So I attempted to replace my roll pin but had absolutely no luck! I tried to knock it out the a 3/16 punch but couldn't get it to move.. I put pressure on it and tried to wiggle the arm up and down, side to side, and turned the arm a bit... I even pulled the tranny mount out to get a little more room, and still no luck. I hit it with just the hammer itself which made the pin flush with the arm but that was all the movement I got. Any suggestions?

My tranny has been recently making a rubbing/ grinding noise when I almost have the clutch reengaged in 1st. It doesn't do it all the time, but it still does it. In. Second it makes a chirp when the clutch is almost completely engaged. The same with 3rd except it's really faint.. Could this be a bad throwout bearing?
I used a 1/8 punch. A small phillips works also
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Old Mar 28, 2011 | 04:37 PM
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Originally Posted by Baron7700
may be related, may not be, I dont know the schematics of our manual (or many) transmissions. But here is my similar experience, sometimes I too get locked out of a gear, mostly first. What I do is just push the clutch in, put it in another gear, than go back to center, than put it in the gear i wanted, and let the clutch out, and it goes in gear. Kinda like double clutching, but i just thought it was the linkage gettin hung up... dunno if this is what your talkin about but it sounds similar to my occasional problem.
Check your linkage adjustment. The plastic clips can move and screw up the adjustment. I eliminated that problem with a TWM cable Clamp.
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Old Mar 28, 2011 | 04:45 PM
  #28  
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Originally Posted by mongorat427
Check your linkage adjustment. The plastic clips can move and screw up the adjustment. I eliminated that problem with a TWM cable Clamp.
youll have to link me to the cable clamp, and also i would have no idea what i am looking at without some research or explanation. I do all work myself, so i would try my hand at this if it fixed the problem. But its really not an issue, rarely happens, but not so rare enough for me to not notice it. Usually only at stop lights, rarely when driving.


Sorry for thread jack.
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Old Mar 28, 2011 | 05:11 PM
  #29  
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https://www.cobaltss.net/forums/twm-...-order-235464/


http://www.******************/forums...tml#post922240
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Old Mar 29, 2011 | 07:58 AM
  #30  
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Originally Posted by alleycat58
With 50,000 you should to a flush and fresh fluid instead of just topping it off (IIRC it's a sealed case, so it shouldn't be low unless you have a crack in the housing, in which case you have bigger fish to fry).

Squishy clutch could be the master cylinder going. I've heard a lot of people have had to replace them.
Yeah thats what I ment, went to Gm and got trans fluid gonna go do it today if I can get the $#!t head to move.. left work this morning had to let it warm up, first was a bitch so I waited didn't wanna risk the syncrose.. and well went into reverse but clunked really loud I won't know till I look I guess,.. freakin me out cause spent my last bit of savings trying to get caught up on bills... just cross my fingers..
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Old Mar 29, 2011 | 11:52 AM
  #31  
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Ok so thinkin ugh maybe Slave Cylinder..? and ugh... humm not sure what to do LoL... wheres Eminem with the donations..? or Oprah F^^k! Lol so what do you guys think?
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Old Mar 29, 2011 | 11:59 AM
  #32  
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If ur car is making a grinding noose whwn engaged thays apparently not ure linkage or ure roll pin. More like a internal bearing, ure clutch friction disc is riding on its rivots or the pressure plate is loose.. Ive also seen the t.b get loose and cause issues as well..... So i would take ure speed sensor out of the tranny! Its under ure fuse box. Because when u take it out itll have metal flakes on it if so it can be normal, but if its bad id suggest a flush unless u have peices of the gears on it as i did.

about me blowing alot of trannys lol i get a good deal buying trannys lol
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Old Mar 29, 2011 | 12:07 PM
  #33  
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Originally Posted by Chevycobaltss3
If ur car is making a grinding noose whwn engaged thays apparently not ure linkage or ure roll pin. More like a internal bearing, ure clutch friction disc is riding on its rivots or the pressure plate is loose.. Ive also seen the t.b get loose and cause issues as well..... So i would take ure speed sensor out of the tranny! Its under ure fuse box. Because when u take it out itll have metal flakes on it if so it can be normal, but if its bad id suggest a flush unless u have peices of the gears on it as i did.

about me blowing alot of trannys lol i get a good deal buying trannys lol
Ok so.. hold on, so flakes on the sensor with a good amount of flakes that normal? Like whats an amount that determines its bad..?
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Old Mar 29, 2011 | 12:31 PM
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say you have about 40k on your car, the correct amount of flakes is truly none. But its ok, because sometimes you will gring a gear. So a little is acceptable, if i had a pik i could show you. if theres alot of gunk on the sensor then id start investing in a new tranny since youve either have a grinded gear, or some bad bearings, which in the instance of having flakes ina trany you could possibly hurt your bearings and ect.
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Old Mar 29, 2011 | 12:39 PM
  #35  
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Originally Posted by Chevycobaltss3
say you have about 40k on your car, the correct amount of flakes is truly none. But its ok, because sometimes you will gring a gear. So a little is acceptable, if i had a pik i could show you. if theres alot of gunk on the sensor then id start investing in a new tranny since youve either have a grinded gear, or some bad bearings, which in the instance of having flakes ina trany you could possibly hurt your bearings and ect.
humm well ima go look.. I hope that is not the case..
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Old Mar 29, 2011 | 12:47 PM
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humm well i looked but I dont see it.. so assuming ima have to take that whole fuse box off the car just to get to it..?
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Old Mar 29, 2011 | 12:50 PM
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yep itll be on top of the tranny but not onthe bell housing. or you can take thepressure sensor out.
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Old Mar 29, 2011 | 01:00 PM
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Heres a pic of the trans


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Old Mar 29, 2011 | 01:04 PM
  #39  
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Yep u can take either of those sensors out.
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Old Mar 29, 2011 | 01:19 PM
  #40  
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humm well, sadly now I cant get it any gear even at 160 degree's... and tryed to put in reverse and it grinded right off the spot
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Old Mar 29, 2011 | 01:23 PM
  #41  
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That sounds like roll pin
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Old Mar 29, 2011 | 02:07 PM
  #42  
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Originally Posted by Chevycobaltss3
That sounds like roll pin
hummm ill have to look more into that im such a nub with r trany's.. hopefully nothing major
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Old Mar 30, 2011 | 01:39 AM
  #43  
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humm i just said *** it ima take it in monday to GM and have them look at it..
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Old Mar 30, 2011 | 01:48 AM
  #44  
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ure issues a roll pin for the linkage it sounds like
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Old Mar 30, 2011 | 02:00 AM
  #45  
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Originally Posted by outtamymind
probably your roll pin opposed to the transmission

there probably isnt a single cobalt owner on this site who HASNT had this happen..


at least of my friends who have balts (4 of us).. it happened to all 4 of us.. LOL


GG gm..
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Old Mar 30, 2011 | 04:01 AM
  #46  
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Originally Posted by Chevycobaltss3
ure issues a roll pin for the linkage it sounds like
Ok well where is the Roll pin..? cant find it..
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Old Mar 30, 2011 | 07:49 PM
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Uploaded with ImageShack.us

here yuh go bro
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Old Mar 30, 2011 | 07:51 PM
  #48  
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Originally Posted by cranemaster
there probably isnt a single cobalt owner on this site who HASNT had this happen..


at least of my friends who have balts (4 of us).. it happened to all 4 of us.. LOL


GG gm..
*raises hand* Never had a roll pin problem. Had a defective linkage I had to have replaced, but the roll pin is still holding strong going on 6 years now. (Watch that bastard break tomorrow now that I said that....)
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Old Mar 30, 2011 | 08:52 PM
  #49  
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Originally Posted by alleycat58
*raises hand* Never had a roll pin problem. Had a defective linkage I had to have replaced, but the roll pin is still holding strong going on 6 years now. (Watch that bastard break tomorrow now that I said that....)
My linkage actually bent because of the plastic clip. Thanks to TWM for solving that problem
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Old Mar 30, 2011 | 09:22 PM
  #50  
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Originally Posted by mongorat427
My linkage actually bent because of the plastic clip. Thanks to TWM for solving that problem
Yep. Mine bent too. This was back when the Cobalt SS was about 2 months old. Chevy dealers didn't stock tranny parts yet. Luckily after some 'splaining about where the transmission came from, the parts guy was smart enough to call the SAAB dealer and get one instead of waiting for parts to be pulled off the assembly line from Chevy.
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