2012 Terrain 3.0L V6 Valve Cover Gasket Replacement - TerrainForum.net: GMC Terrain Forum
 
LinkBack Thread Tools
post #1 of 2 (permalink) Old 12-07-2019, 01:11 AM Thread Starter
Jr. Member
 
Join Date: Nov 2019
Location: north Alabama
Posts: 6
2012 Terrain 3.0L V6 Valve Cover Gasket Replacement

2012 Terrain 3.0L V6 flex fuel engine with 207k miles
Replaced the 6 spark plugs after removing the intake manifold. Not sure if ever replaced before but IM lower gasket was original. Oil was in one of the spark plug tubes (middle front cylinder - didn't look up the #). Not much oil but noticeable. Next step it would naturally seem (intake manifold already off) is to replace the valve cover gaskets & spark plug (top) tube seals. What is the valve cover bolt torque spec & tightening sequence? I want to eliminate potential future issues. I searched through this Engine & Drivetrain area (read all 8 pages from the results except for this massive 289 page thread but couldn't find the answer so apologies if I missed it.

It has a P0300 misfire code every few weeks but still drives ok. Intermittent coolant loss that hasn't been found yet either. One step at a time though I guess.

Thank you.

Ben
benjamming is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 12-07-2019, 10:09 AM
Sr. Member
 
rjayl's Avatar
 
Join Date: Oct 2017
Location: Michigan
Posts: 303
Garage
Here ya go:




2011 GMC Terrain 3.0L AWD
2008 Chevy Impala SS
rjayl is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TerrainForum.net: GMC Terrain Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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