BobLoblaw Posted February 4, 2008 Share Posted February 4, 2008 I read in another topic that the newer model Pathy ('96+) needed a special tool/socket to be removed. Do I need a special tool to remove/replace my o2 sensor in my '94? Any tips for easy removal/replacement would also be appreciated. I got to deal with a few feet of snow here! Link to comment Share on other sites More sharing options...
GhostPath Posted February 4, 2008 Share Posted February 4, 2008 I read in another topic that the newer model Pathy ('96+) needed a special tool/socket to be removed. Do I need a special tool to remove/replace my o2 sensor in my '94? Any tips for easy removal/replacement would also be appreciated. I got to deal with a few feet of snow here! A wrench of the appropriate size is all that is required. Our sensor isn't in a weird location, so it does not need a socket to remove. You will also want to soak it in penetrating lube (SeaFoam, Kroil. NOT WD40) for a day before attempting it. Link to comment Share on other sites More sharing options...
94extreme Posted February 4, 2008 Share Posted February 4, 2008 22mm open ended wrench. mine was a pita.. it was spot welded.. i ended up destroying it to get it out. Link to comment Share on other sites More sharing options...
BobLoblaw Posted February 4, 2008 Author Share Posted February 4, 2008 22mm open ended wrench. mine was a pita.. it was spot welded.. i ended up destroying it to get it out. Overall, would you say it's a pretty easy job though (if it's not spot welded that is!)? Link to comment Share on other sites More sharing options...
pbdm4k Posted February 4, 2008 Share Posted February 4, 2008 Overall, would you say it's a pretty easy job though (if it's not spot welded that is!)? Mine was rusted on and couldn't be removed. I ended up replacing that whole section of pipe. Link to comment Share on other sites More sharing options...
crazyhayseed Posted February 4, 2008 Share Posted February 4, 2008 mine was a pita.. it was spot welded.. i ended up destroying it to get it out. Mine is like that too! I've left it alone for now, but I think I'm gonna have to replace the whole pipe. It won't budge. Why would someone do that? Surely they didn't come from the factory tacked like that. Link to comment Share on other sites More sharing options...
94extreme Posted February 4, 2008 Share Posted February 4, 2008 Surely they didn't come from the factory tacked like that. i think it did in my case.. i'd have to go through the records to find out for sure but iirc O2 sensor was never replaced prior me getting my paws on this truck. Link to comment Share on other sites More sharing options...
GhostPath Posted February 4, 2008 Share Posted February 4, 2008 Well... the bung or fitting that the O2 sensor screws into is welded to the pipe. If the O2 sensor has been in there longer than it's supposed to, it can look like it's part of the sensor. And if you're in a rust-promoting environment or the previous person didn't use antiseize, it may have rust-welded together. Link to comment Share on other sites More sharing options...
BobLoblaw Posted February 5, 2008 Author Share Posted February 5, 2008 Okay, I'm finally getting to take a look at the pathy and I can't find the bloody o2 sensor. Mind you, it is -20C almost and pitch black (other than my . Where is the o2 sensor located and what's the best way to attack this thing? Link to comment Share on other sites More sharing options...
crazyhayseed Posted February 5, 2008 Share Posted February 5, 2008 Where is the o2 sensor located and what's the best way to attack this thing? The Intermediate Pipe pictured in Yellow: It's around the driver-side door, inside the frame. That's the Walker PN BTW. Sold by O'reilly. Link to comment Share on other sites More sharing options...
BobLoblaw Posted February 5, 2008 Author Share Posted February 5, 2008 Wow, thanks for the diagram! I'll be sliding under my Pathy tomorrow (in the snow) to check it out. I was going to replace my current o2 sensor with a NTK (Part# 24157), $86.00. Is this the best option or are their better/cheaper o2 sensors? Link to comment Share on other sites More sharing options...
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