Big Transmission Problem? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Transmission All about the Chevy Cobalt Transmission

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 08-02-2015, 02:04 PM Thread Starter
Veteran
 
GpB311's Avatar
 
Join Date: Jun 2010
Location: Los Angeles, CA
Posts: 713
Garage
Big Transmission Problem?

I dropped my pan today to change the filter and fluid and have two big issues that have cropped up.

First, while putting things back together, the bolt in the back driver side of the pan seems to have stripped somehow. It wouldnt tighten and came out with metal in the threads. If my next problem is fixable, how serious is this one in terms of leaks and such? I replaced the gasket with a new oem one as well. Also, how crazy of a job would it be to have that repaired by someone since its a bit beyond my ability?

Second, it seems like the pan may have warped while I was draining the fluid. I loosened the back bolts to let the fluid slowly drain out and I think it may have put some presure on the thinner front part because it is not laying flush with the gasket even after things have been properly torqued. (89 in-lbs) Is there a chance I can just use a rubber mallet to get it flat again or should I just find a local shop with a replacement pan?

I havent added the new fluid yet since it seems it would just leak out.

---------- Post added at 12:31 PM ---------- Previous post was at 12:28 PM ----------

Here you can see the front part that isnt flush at all.


---------- Post added at 12:39 PM ---------- Previous post was at 12:31 PM ----------

Heres a better pic as well as one of the bolt as is




---------- Post added at 02:04 PM ---------- Previous post was at 12:39 PM ----------

My haynes manual says to torque tran pan bolts to 124inlbs, not 89 like the video i was referencing said, so I retorqued them.

I also lightly hammered the pan while on a flat surface to try and bend the pan back. It seems to have helped a little, but Im still worried.

GpB311 Showoff Profile https://www.yourcobalt.com/forums/veh...ngeles-ca.html


You might also know me as Dick Thrusthumper...
GpB311 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 08-02-2015, 02:31 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
It'S 89 in-pounds according to the GM server.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #3 of 6 (permalink) Old 08-02-2015, 03:28 PM Thread Starter
Veteran
 
GpB311's Avatar
 
Join Date: Jun 2010
Location: Los Angeles, CA
Posts: 713
Garage
I recently had it up on 4 jack stands and filled it to the perfect level, so I just took as close to the amount that drained out and put that much fresh fluid in. After starting it up and letting it idle for a few, I cycled through the gears slowly and everything seemed fine.

After a few trips around the local neighborhood, I came back home and let it sit while off to see if it leaked as the fluid drained back into the pan. So far, no leaks are showing, so I think Im ok. My torque wrench is pretty cheap, so Im probably most likely between 89 and 124 inlbs.

As far as the stripped bolt goes. How serious of a job would having that repaired be, you think?

GpB311 Showoff Profile https://www.yourcobalt.com/forums/veh...ngeles-ca.html


You might also know me as Dick Thrusthumper...
GpB311 is offline  
 
post #4 of 6 (permalink) Old 08-02-2015, 04:31 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Cast aluminuim would mean drill tap and helicoil. $5 maybe if you know the guy.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #5 of 6 (permalink) Old 08-02-2015, 08:04 PM Thread Starter
Veteran
 
GpB311's Avatar
 
Join Date: Jun 2010
Location: Los Angeles, CA
Posts: 713
Garage
I dont know anyone off hand, but theres a couple small shops around here that Ive had random work done at before and got a fair price.

Will the pan need to be dropped again? If so, im hoping they can save the fluid since its brand new.

GpB311 Showoff Profile https://www.yourcobalt.com/forums/veh...ngeles-ca.html


You might also know me as Dick Thrusthumper...
GpB311 is offline  
post #6 of 6 (permalink) Old 08-05-2015, 07:54 PM
Newcomer
 
tornado_735's Avatar
 
Join Date: Jul 2015
Location: Columbus, Ohio
Posts: 7
You might take that bolt to a hardware store (Home Depot, Ace, etc) and figure out what the thread size and pitch is (there are these labeled guides by the nut and bolt section that you can thread your bolt into to figure out what yours is). Anyway, figure out what your bolt is and find one that is slightly longer (they usually come in packs of 3 or 4).

Find one that is half an inch or so longer, and see if that will thread up into the hole and tighten down. Those bolt holes are usually deeper than the bolts are long, you may get lucky. I've done this on several occasions, here recently when I stripped the bolt hole on a Mercedes E320 transmission pan lol

2006 Chevrolet Cobalt LS - 2.2L Ecotec - 315k
2006 Pontiac Grand Prix - 3800 V6 - 126k
1995 Range Rover 4.0SE - 4.0L V8 - 133k (mothballed with gearbox failure)
"...then I saw that there was a way to Hell, even from the gates of Heaven..."
tornado_735 is offline  
Sponsored Links
Advertisement
 
Closed Thread

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome