2010 LT Cobalt Shifting Problems - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 10-23-2013, 12:58 PM Thread Starter
Join Date: Oct 2013
Posts: 1
2010 LT Cobalt Shifting Problems

Automatic transmission, just over 36K miles, engine replaced last year with no problems since then. Lately it has been having a hard time "knowing" when to shift in the lower gears (1st to 2nd to 3rd is all I've noticed), e.g. it will rev way up almost to 4000 (probably more if I let it) and won't shift automatically unless I take my foot off the gas, at which point it will usually shift. Also, yesterday from a dead stop it didn't go into gear and I had to push it to the side of the road, turn it off, restart it, put it in reverse and then drive at which point it worked again.

Any ideas what it is? Money's a bit tight at the moment, so I'm hoping it's just a transmission fluid leak or I need a flush or something. Any help would be very much appreciated.
bmfeiner is offline  
Sponsored Links
post #2 of 2 (permalink) Old 10-23-2013, 02:51 PM
Super Moderator
YourCobalt.com Premium Member

Coby7's Avatar
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Did you check the TCM fuses. There are 2 one in the underhood fuse block and one in the BCM fuseblock. They might not be burnt but they might have corrosion on them. So try replacing both these fuses and see what it does. You may also want to disconnect the "TCM" and reconnect just to clean the contacts of the connector.

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  
Sponsored Links
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