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Old 07-20-2009, 09:41 PM   #1
gando327
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Join Date: Dec 2005
Chapter/Region: Tri-State
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03 Impreza WRX
Silver *wingless*

Angry can't get front 02 sensor off!!!

I need to replace the front o2 (oxygen) sensor. I got the special o2 sensor socket and tried turning it real hard for a while. Its really really stuck on there. Tomorro I'm going to buy some PB blaster (liquid wrench stuff) and an oxyacetylene torch and have another go at it.

Does anyone have any tips/ideas/experience with this??
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Old 07-20-2009, 09:44 PM   #2
metroscub
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pb blaster as you said bro, that is how I got my wife's off when i did her 04. I let is soak for a few hours first though
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Old 07-20-2009, 09:56 PM   #3
gando327
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yea im leaning towards the pb blaster tomorrow... hopefully that works otherwise the next step is buying an oxyacetylene torch. Although the torch would be fun to play with, I really want to get the new o2 sensor in tomorro and not deal with it anymore hah
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Old 07-20-2009, 10:01 PM   #4
JesseRJames
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I had that same problem when i was doing my up-pipe this weekend. I spent like 30 minutes trying to get it off and gave up, I ended up maneuvering my way around and snipped the heat shield so it would slide off. But for you Different story, You actually have to go though with it. I think your idea would work good. Just let it sit for a while.
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Old 07-21-2009, 12:30 AM   #5
Uncle Scotty
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Quote:
Originally Posted by JesseRJames View Post
I had that same problem when i was doing my up-pipe this weekend. I spent like 30 minutes trying to get it off and gave up, I ended up maneuvering my way around and snipped the heat shield so it would slide off. But for you Different story, You actually have to go though with it. I think your idea would work good. Just let it sit for a while.
I have snipped the heatshield and use a big wrench on the o2 sensor
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Old 07-21-2009, 02:54 AM   #6
gando327
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hmmmm regular sheet metal snips will work?? i have those =)

if the lube doesent work im gonna resort to the snips
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Old 07-21-2009, 02:57 AM   #7
gando327
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Last edited by gando327; 07-21-2009 at 08:33 AM. Reason: posting when wasted
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Old 07-21-2009, 04:42 PM   #8
rick-l
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Quote:
Originally Posted by gando327 View Post
Tomorro I'm going to buy some PB blaster (liquid wrench stuff) and an oxyacetylene torch and have another go at it.??
The flame wrench will get anything off
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Old 07-21-2009, 08:19 PM   #9
gando327
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snipped the heat shield. broke off most of the old o2 sensor. then used PB blaster. soaked it for like 1/2 hour. came right off with a 22mm regular deep socket. put in the new one (it came prepped with anti seize). Car runs good now. CEL stays cleared.

didn't have to use the torch. I probably would have burned something down anyway lol
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Old 07-21-2009, 09:23 PM   #10
JesseRJames
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See snipping the heat shield works like a charm! Happy to hear everything is done and properly working.
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