Code P0128 - 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 3 (permalink) Old 12-29-2011, 12:54 PM Thread Starter
Forum Regular
Jimbug's Avatar
Join Date: Feb 2008
Posts: 129
Code P0128

How do you replace a thermostat on a 2006 LS sedan with the 2.2 and no mods
Jimbug is offline  
Sponsored Links
post #2 of 3 (permalink) Old 12-29-2011, 04:09 PM
Super Moderator Premium Member

Coby7's Avatar
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Try this thread

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 3 (permalink) Old 12-29-2011, 04:12 PM
Staff Alumni
stratosproject's Avatar
Join Date: Mar 2010
Location: Minneapolis, MN
Posts: 1,420
I double checked your code, and you're spot on. For the L61 it says to replace the thermostat. Here's what my manual says:

Removal Procedure
1. Remove the intake manifold cover.
2. Drain the cooling system.
3. Remove the radiator outlet hose from the thermostat housing.
4. Remove the thermostat cover bolts and cover.

5. Remove and discard the thermostat cover O-ring seal.

Installation Procedure:
1. Install a new thermostat cover O-ring seal into the recess groove.
2. Install the thermostat into housing.
3. Install the thermostat cover bolts. Tighten to 10 N.m. (89 lb in)
4. Install the radiator outlet hose to the thermostat housing.
5. Install the intake manifold cover.
6. Fill the cooling system to specifications.

"You all know I take great pride in my title as Mr. Positive."
My Showoff
stratosproject 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