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Unread 09-05-2011, 12:57 PM   #1
JeepCreep454
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O2 sensor 1992 jeep wrangler

Where is the 02 sensor on a 1992 wrangler?

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Unread 09-05-2011, 01:55 PM   #2
Mark05059
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Last edited by Mark05059; 09-05-2011 at 09:29 PM.. Reason: incorrect info
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Unread 09-05-2011, 02:00 PM   #3
Budke
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Quote:
Originally Posted by Mark05059 View Post
just after the cat on the passenger side in the exhaust pipe.
Wrong.
Its on the drivers side on the exhaust pipe. Right next to the front DS
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Unread 09-05-2011, 02:17 PM   #4
JeepCreep454
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Why would I need to change it and how difficult would it be to change?
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Unread 09-05-2011, 02:28 PM   #5
Jarred2
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Quote:
Originally Posted by JeepCreep454 View Post
Why would I need to change it and how difficult would it be to change?
theyre easy to change out.
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Unread 09-05-2011, 02:34 PM   #6
Budke
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you'd need to change it if it went bad. Could cause your jeep to run too lean or too rich.
I've been driving my jeep with no 02 sensor for a couple weeks and haven't noticed a difference in the way it runs from before the wires got ripped out of the sensor.
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Unread 09-05-2011, 06:33 PM   #7
JeepCreep454
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Could it cause a low or rough idle?
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Unread 09-05-2011, 06:38 PM   #8
Matt24138
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Yes
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Unread 09-05-2011, 06:39 PM   #9
Matt24138
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If you change it get a breaker bar and do it when the exhaust is really hot.
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Unread 09-06-2011, 09:00 AM   #10
Bad_Dog
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I tried to replace mine over the weekend. After several shots of PB Blaster, each time letting it sit for 20 minutes to an hour, no luck. I let it sit for two days and tried again, still no luck.

I did run the engine for a couple of minutes - I was also changing the fuel filter so needed to ensure the new fuel lines around the filter were secure - but still no luck.

The engine didn't get above 100F, so I may have not let it run long enough to get it hot enough.

Don't have a breaker bar, but did end up buying a sensor socket wrench because my open-ended wrench started to strip it a little.

So what do you suggest... PB blast it first, then drive it around for a while, or the other way around? Never used PB on anything that was subject to heat so I don't know how well it handles 'soaking' and being 200 degrees.
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Unread 09-06-2011, 09:18 AM   #11
Que89YJ
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Go to harbor freight and get a breaker bar. You arent going to get it loose without one. Especially if its been in there for a while. You can pick one up for under $20. Archemedies was right, leverage is your friend. Spray it with pb blast while cold, never hot. Let it soak overnight. Take it out and run it hard for 20 minutes to heat the exhaust then use the BB and a good socket to break it free. I have the O2 sensor socket but found it made more sense to cut back the wires on the top when I was removing it and use a 1/2" drive deep well socket.
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Unread 09-06-2011, 09:24 AM   #12
tdewit
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Now that you have the sensor socket wrench, just get a 2 foot pipe to go over the rachet. No need to go to HF and spend more money. I used a ring with a pipe.

Que89YJ is correct though, Archemedies was right, leverage is your friend.
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Unread 09-06-2011, 02:51 PM   #13
Bad_Dog
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I don't have a breaker bar, but what about an impact wrench? That I do have...
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Unread 09-06-2011, 03:04 PM   #14
Que89YJ
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You can try but there is more torque with a 3 foot pipe on a breaker bar then you can get from an impact. I would try everything I had at my disposal first before buying a new tool.....but I do like shiny new tools too!
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Unread 09-06-2011, 04:10 PM   #15
Budke
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Mine has been in for 19 years and I took it out with just a crescent wrech. PB'd it, let it sit 15-20 minutes, let the engine idle til it got up to temp, shut 'er off and the sensor came right out.
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