V6 Bank 1, Sensor 1, O2 replacement - TerrainForum.net: GMC Terrain Forum
 6Likes
Reply
 
LinkBack Thread Tools
post #1 of 24 (permalink) Old 02-28-2019, 11:23 PM Thread Starter
Full Member
 
Dagorlad's Avatar
 
Join Date: Dec 2017
Posts: 160
Garage
V6 Bank 1, Sensor 1, O2 replacement

Has anyone replaced this sensor? I'm have a P0420 DTC that comes and goes and about due to replace the O2 sensors. The SM says the cradle has to be lowered to replace this one, that would complicate things a bit.

2010 Equinox LT V6 AWD
Dagorlad is offline  
Sponsored Links
Advertisement
 
post #2 of 24 (permalink) Old 03-03-2019, 06:07 AM
Sr. Member
 
repairman54's Avatar
 
Join Date: Sep 2017
Location: Montague, NJ
Posts: 305
Garage
It's a matter of what tools you can get in there. Socket or crowsfoot sensor wrench or anything that will get it out. For the P0420 replace the after cat sensor first before trying to tackle the pre cat one.
rednox301 likes this.

Some suffer from insanity, I choose to enjoy it
'16 nox 3.6 AWD LTZ
'11 Tahoe LTZ
'09 Malibu
'01 FLHR
Ski Doo's
Long time contributor on Taurus car club site
Malibu forum contributor
repairman54 is offline  
post #3 of 24 (permalink) Old 03-03-2019, 10:46 AM
Theta Freak
 
rednox301's Avatar
 
Join Date: Nov 2014
Posts: 1,616
Quote:
Originally Posted by repairman54 View Post
It's a matter of what tools you can get in there. Socket or crowsfoot sensor wrench or anything that will get it out. For the P0420 replace the after cat sensor first before trying to tackle the pre cat one.
After replacing many O2 sensors thru the years this trick has helped me the most.
Cut the wires and connector off the old sensor first.
Then you can get a regular socket on what's left and get a good grip on it.
Use wobbles and extensions if necessary.
RIT333 likes this.

2014 Equinox LTZ FWD 3.6L. V-6 (LFX)
GM6T70 Transmission-Gen II(M7W)
Crystal Red Tintcoat-Brownstone Leather-(FE2) Suspension-18" Wheels
Build Date: Nov. 04, 2013-Delivery Date: Nov. 25, 2013
rednox301 is offline  
Sponsored Links
Advertisement
 
post #4 of 24 (permalink) Old 03-03-2019, 11:47 AM Thread Starter
Full Member
 
Dagorlad's Avatar
 
Join Date: Dec 2017
Posts: 160
Garage
Quote:
Originally Posted by repairman54 View Post
It's a matter of what tools you can get in there. Socket or crowsfoot sensor wrench or anything that will get it out. For the P0420 replace the after cat sensor first before trying to tackle the pre cat one.
I have both tools, just worried there might not be room to get it out. I'm also planning to replace all 4 as they are supposedly due.
bigb12359 likes this.

2010 Equinox LT V6 AWD
Dagorlad is offline  
post #5 of 24 (permalink) Old 03-03-2019, 08:14 PM Thread Starter
Full Member
 
Dagorlad's Avatar
 
Join Date: Dec 2017
Posts: 160
Garage
I didn't expect cooperative weather today, but it was good enough to get the other 3 sensors replaced. The one with the best access is B1S2, real easy to get at after you remove the pass side wheel. Which was a good thing because I had to cut the wires and hit it with a 1/2" impact to break it loose. The other two were just awkward to get at.

B1S1 is still in there, can't see it at all from above and only just barely from below. Clearly that one is not gonna be easy. Oh, the shop manual says to drop the suspension cradle if AWD.

2010 Equinox LT V6 AWD
Dagorlad is offline  
post #6 of 24 (permalink) Old 03-04-2019, 09:16 AM
Theta Freak
 
Join Date: Mar 2011
Posts: 1,076
FROM GM SERVICE MANUAL ...........

Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (LF1 or LFW)

Object ID: 2197495Click here for detailed picture of the image.
Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 Callout
Component Name



Preliminary Procedures

Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement.


1
Heated Oxygen Sensor

Caution: Refer to Heated Oxygen and Oxygen Sensor Caution.

Caution: Refer to Fastener Caution.

Procedure
 1. Disconnect the heated oxygen sensor harness connector.
 2. If reinstalling the old sensor, coat the threads with anti-sieze compound. Refer to Adhesives, Fluids, Lubricants, and Sealers.
Tip: A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation.

Tighten

42 Y (31 lb in)
bigb12359 is offline  
post #7 of 24 (permalink) Old 03-04-2019, 04:48 PM
Theta Guru
 
Join Date: Dec 2010
Posts: 4,812
Quote:
Originally Posted by Dagorlad View Post
I'm also planning to replace all 4 as they are supposedly due.

On my 2010 Traverse, I replaced all 4 at 100,000.


I had no issues with the factory units. No CELs or anything.
But- didnt want them getting lazy... and ruining cats.




im guessing the hard one is the one by the firewall?


maybe this will give you a clue---- from my 2010 TRAVERSE.






looking from the top, engine cover removed, intake manifold visible--- and firewall visible..





this is from bottom of vehicle, looking up- at the tool coming down from engine bay.





here I stuck the camera up- to get a side view-
engine on one side, firewall on the other... and crowsfoot doing its thing..
JayTee2014 likes this.

2013 Equinox LT1 3.6L V6 FWD 83,000
2010 Traverse LT1 3.6L V6 FWD 148,000
2003 Trailblazer LS 4.2L I6 RWD 181,000
rbarrios is offline  
post #8 of 24 (permalink) Old 03-04-2019, 11:55 PM Thread Starter
Full Member
 
Dagorlad's Avatar
 
Join Date: Dec 2017
Posts: 160
Garage
So yours was vertical from the exhaust manifold? That is the way the SM depicts it, yet mine is horizontal from the manifold, toward the pass side.

2010 Equinox LT V6 AWD
Dagorlad is offline  
post #9 of 24 (permalink) Old 03-05-2019, 09:38 AM
Theta Guru
 
JayTee2014's Avatar
 
Join Date: Sep 2014
Posts: 4,950
Garage
Quote:
Originally Posted by Dagorlad View Post
So yours was vertical from the exhaust manifold? That is the way the SM depicts it, yet mine is horizontal from the manifold, toward the pass side.

You have a 2010, right? Do you have the 3.0L V6? That might be the difference.
bigb12359 likes this.

2015 Equinox LTZ 3.6L FWD Champagne Silver Metallic *Build Date 1-08-2015 * *38,865 miles 7-9-2019
JayTee2014 is offline  
post #10 of 24 (permalink) Old 03-05-2019, 10:29 AM
Theta Freak
 
Join Date: Mar 2011
Posts: 1,076
My post is from 2010 3.0L
bigb12359 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