O2 Sensor Removal Videos - JeepForum.com
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post #1 of 17 Old 09-24-2020, 07:31 AM Thread Starter
AlaskaDiver
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Solved: O2 Sensor Removal

Looking for videos on how to remove all four sensors and their wiring. So far, I can only find one for bank 1, sensor 1.

Any help?

Update, solved without videos. See subsequent posts for details.


Last edited by AlaskaDiver; 09-26-2020 at 11:00 PM.
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post #2 of 17 Old 09-24-2020, 09:43 AM
Kruzin
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No help here.
O2 sensors are required for the vehicle to operate properly and are mandated by federal laws.
Removing them is a terrible idea on many levels, a federal offense, and also against forum rules to discuss how to violate the law.

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post #3 of 17 Old 09-24-2020, 09:56 AM Thread Starter
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Well, KAREN, way to make some assumptions there pal.

I want to remove them so I can replace them with new ones.

You can apologize now - although I don't really expect you to.
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post #4 of 17 Old 09-24-2020, 10:37 AM
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Name calling. Very grown up. Now tell me I'm 'Kruzin for a bruzin', I've never heard that one before.

Now then...You didn't say anything about replacing anything, you specifically said remove. So I apologize for misunderstanding your vague and misleading post. And there usually isn't much call to replace that wiring.

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post #5 of 17 Old 09-24-2020, 11:14 AM Thread Starter
AlaskaDiver
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I wasn't looking for information about replacing. I was looking for info on removal. That is an act that occurs before installation.

The wiring is attached to the sensor. It would be unusual to remove one without the other.

You could have more easily assumed the more likely case that I would install new ones after removing old ones, rather than assuming that I would leave holes in the exhaust (or acquire and install a plug of some kind...I guess). You could have asked if I was installing new ones. Or asked What I was replacing them with. You simply chose not to. Instead, you went on a sanctimonious rant about federal law and forum rules. For some reason.

B2S2 has now been removed.

Still looking for videos on:
B2S1
B1S2

Last edited by AlaskaDiver; 09-24-2020 at 11:32 AM.
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post #6 of 17 Old 09-24-2020, 11:35 AM
Geoskier9
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Are they not all the same method? Unplug from the wiring harness and unbolt from the exhaust? What are you looking for in separate videos for each location?
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post #7 of 17 Old 09-24-2020, 02:10 PM Thread Starter
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Yes, each is unbolt it and unplug it. No rocket science there.

But I'm looking for the experience of others with respect to HOW to do so. Mostly where to plug/unplug each one and best method of access to the plug and sensor itself. I'd like to avoid the frustration of trial and error and busting up knuckles, wasting time trying to figure it out, taking off stuff that I may not need to, avoiding frustration of taking off stuff to make things easier, tricks and tips, etc.

So far, best thing I found was a guy taking one off a Ford. I learned about MAPP gas and the rock it back and forth technique.

On another post, I got some good info on approaching and disconnecting B2S2.

With respect to anything mechanical, nothing is obvious to me. That's probably why I couldn't get my vehicle into drive after replacing B2S2 and had to go find a video as to why.

B2S2 has been replaced. Test drive reveals I now need to do B1S2, which i anticipated.
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post #8 of 17 Old 09-24-2020, 08:14 PM Thread Starter
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For reference, here is a video I found for B1S1.

http://www.youtube.com/watch?v=uC-OOLEaTZk

It didn't quite work for me, I have to stop until I can get a 22mm flex head ratcheting wrench.

Here is a helpful video on getting the fender off. Putting it back on remains a mystery.

https://youtu.be/rZ-pKZTsoj4
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post #9 of 17 Old 09-25-2020, 08:38 AM
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The fender reinstall isn't hard. The hard part is removing the plastic clips without breaking them. I bought a bag of 25 clips from clips and fasteners for about $13 so I had plenty.

To reinstall, put good clips back in the mounting holes or replace broken ones and then pop the fender back on.

The inner fender is held in with christmas tree fasteners and 10mm nuts. Pull those and the inner fender should come out easy. As long as you use a removal tool, you can reuse the christmas tree fasteners.

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post #10 of 17 Old 09-25-2020, 08:46 AM Thread Starter
AlaskaDiver
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Thanks.
I did not use a removal tool. I removed the 6 metal fasteners and then pulled it off as per a video I saw (the second one in my previous post).

The inner plastic part is attached to the outer silver part, I removed it all as a unit.
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post #11 of 17 Old 09-25-2020, 08:58 AM
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That works. I normally drill out the plastic rivets on the edge that connects the two fender pieces together and then if reinstalling a full factory fender re rivet it together.

Your way seams cleaner.

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post #12 of 17 Old 09-25-2020, 01:22 PM Thread Starter
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Quote:
Originally Posted by cranbiz View Post
That works. I normally drill out the plastic rivets on the edge that connects the two fender pieces together and then if reinstalling a full factory fender re rivet it together.

Your way seams cleaner.
Thanks. I ordered some clips and such - hopefully I can get it all back together.

Sadly, I noticed I am missing one of the caliper bracket mounting bolts, so I've had to stop with the O2 work and deal with that carnage first.
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post #13 of 17 Old 09-26-2020, 03:33 PM Thread Starter
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O2 Sensor Removal

Ok, no longer need videos. I have all four sensors out. I'll add pictures later, but here is my summary:

0). Tools used:

- 22 mm ratcheting wrench
- 22 mm flex-head ratcheting wrench
- 10 mm socket
- drive extender
- Dewalt 20v impact driver
- 1/2 drive breaker bar, 24"
- 1/2 drive deep well 22mm socket
- Benzomatic MAPP gas torch
- fire extinguisher
- hammer
- heat resistant foil tape

I keep fire extinguisher at the ready whenever I am working with fire. Be careful not to burn wiring!

1). Remove both front fenders, using the impact driver, 10mm socket and extender.

2). B1S1 was easiest. Access from front right fender area. Cut unplug it, the plug is right there. Cut the wire close to the sensor. Remove the wire. Torch it. Use the flex-head ratchet. It came off relatively quickly and with little effort.

3). B2S1 was second-most easiest. Same process as step 2, working from front left fender area, but more muscle was required, but still not bad.

4). B1S2 was the hardest. Access from right fender area. Unplug and cut wire as before. Gave up using ratchet I bought and used the breaker bar and 22" deep well socket, which barely fit. Torch it and the. Work on it with the socket and bar. Significant effort was required. Had to keep reposition socket on breaker bar due to lack of room to turn it.

5). B2S2 was second hardest. Access from underneath, driver's side area. Unplug and cut wire as before. Torched it and used 22 mm non-flex-head ratchet to get it off. Significant effort required. Had to rock it back and forth repeatedly. Be careful not to disturb shift linkage cable on an automatic. If you find you can't get the shifter past reverse, get under vehicle abs make sure you didn't do anything to bind up that cable. All I did was jiggle all the cables and that did the trick.

Now I have to install new sensors, put fenders on and hope I've solved my emissions issue. If not, replacement of the car converters is next. I plan to use the foil anti-heat tape on anything that looks like it might need it.
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post #14 of 17 Old 09-28-2020, 09:08 AM Thread Starter
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Photos....

I've tried to show locations and access methods for the sensors and connection point of their wiring to the Jeep's wiring.

Left front. Remove fender. Sensor is right there. Connector is under brake reservoir. Access by reaching underneath fender.

Left rear. Crawl under. Sensor is on left side. Connector is midline, way up in there. Using a very long pair of needle road pliers to grasp the Jeep side while you use hand to release sensor side helps. Be careful not to bind up the trans linkage cable.

Right front and rear. Remove fender. Sensors and wiring are readily accessible.
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post #15 of 17 Old 10-01-2020, 07:48 PM Thread Starter
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New sensors did not solve my issue. Now replacing the cat. I hope the Walker version fits well.
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