eerf95 Posted October 31, 2008 Share Posted October 31, 2008 Hello, I have a '95 SC400 and was wondering what this grey plastic thing with the wire sticking out of it is near my Oil Filter? (see picture). It is leaking oil (when car is running) between the plastic seams. How do I remove it? and does it need to be replaced? Thanks for any help, eerf95 Quote Link to comment Share on other sites More sharing options...
Lethal_Threat Posted October 31, 2008 Share Posted October 31, 2008 Hello, I have a '95 SC400 and was wondering what this grey plastic thing with the wire sticking out of it is near my Oil Filter? (see picture). It is leaking oil (when car is running) between the plastic seams.How do I remove it? and does it need to be replaced? Thanks for any help, eerf95 Someone correct me if i'm wrong, but i believe that's the oil pressure sensor, depending on how its leaking, it should be replaced. From the description its not just a seal, but a failure of the part sensor itself. Goodluck with it. Quote Link to comment Share on other sites More sharing options...
Lethal_Threat Posted October 31, 2008 Share Posted October 31, 2008 Hello, I have a '95 SC400 and was wondering what this grey plastic thing with the wire sticking out of it is near my Oil Filter? (see picture). It is leaking oil (when car is running) between the plastic seams.How do I remove it? and does it need to be replaced? Thanks for any help, eerf95 Someone corr Quote Link to comment Share on other sites More sharing options...
eerf95 Posted November 1, 2008 Author Share Posted November 1, 2008 Is this easy to remove and replace? Quote Link to comment Share on other sites More sharing options...
Clyde 1 Posted November 1, 2008 Share Posted November 1, 2008 Hello, I have a '95 SC400 and was wondering what this grey plastic thing with the wire sticking out of it is near my Oil Filter? (see picture). It is leaking oil (when car is running) between the plastic seams.How do I remove it? and does it need to be replaced? Thanks for any help, eerf95 Someone correct me if i'm wrong, but i believe that's the oil pressure sensor, depending on how its leaking, it should be replaced. From the description its not just a seal, but a failure of the part sensor itself. Goodluck with it. Oil pressure sensor it is.........those things will crack between the plastic insert top and the metal housing (around the plug in terminals) resulting in a leak Quote Link to comment Share on other sites More sharing options...
eerf95 Posted November 1, 2008 Author Share Posted November 1, 2008 anything special about removing it and replacing it I need to know? Thanks. Quote Link to comment Share on other sites More sharing options...
UCF3 Posted November 1, 2008 Share Posted November 1, 2008 I don't think so. Is the sensor malfunctioning at all? Quote Link to comment Share on other sites More sharing options...
eerf95 Posted November 1, 2008 Author Share Posted November 1, 2008 I don't think so. Is the sensor malfunctioning at all? no, just leaking oil between the seams. Quote Link to comment Share on other sites More sharing options...
Lethal_Threat Posted November 2, 2008 Share Posted November 2, 2008 Is this easy to remove and replace? Simple bolt on, and also a common failure im told. These are held in stock by most lexus dealers and it also cross-references to a toyota number Quote Link to comment Share on other sites More sharing options...
eerf95 Posted November 13, 2008 Author Share Posted November 13, 2008 Okay, what am I doing wrong? I got the new oil pressure sensor and put it on, but it is leaking oil at the threads. I put teflon tape on it and it seems the more I screw it on the more it leaks. I hand tightened it and it still leaks but not as much. Any ideas? thanks, eerf95 Quote Link to comment Share on other sites More sharing options...
zeus87gn Posted November 13, 2008 Share Posted November 13, 2008 It should have an oring on it. Lube it with some oil and try again. If it doesn't have the oring, you may have battered the threads overtightening it. That housing is only aluminum. You may can try running the correct tap into the threads to "chase" them, but I don't know what the correct tap is. There is a chance it's the wrong part depending on where you got it. Quote Link to comment Share on other sites More sharing options...
eerf95 Posted November 13, 2008 Author Share Posted November 13, 2008 It should have an oring on it. Lube it with some oil and try again.If it doesn't have the oring, you may have battered the threads overtightening it. That housing is only aluminum. You may can try running the correct tap into the threads to "chase" them, but I don't know what the correct tap is. There is a chance it's the wrong part depending on where you got it. thanks. there was no o-ring, maybe I over tightened it. I'll get another. Quote Link to comment Share on other sites More sharing options...
eerf95 Posted November 17, 2008 Author Share Posted November 17, 2008 okay, I got another sensor and it still leaks, not as bad though. Teflon tape didn't work, so I used a high temp, oil resistant gasket sealer. I hand tightened the sensor on, then turned it about 1/4 more with a wrench. I don't understand why it still leaks. No oil light is on. Any ideas? eerf95 Quote Link to comment Share on other sites More sharing options...
UCF3 Posted November 17, 2008 Share Posted November 17, 2008 there might be a hairline crack that you're not able to see from there or somewhere near by. See if you can buy some Oil dye. Before you add it, drain your oil, and thoroughly clean the oil area. I've used BrakeClean and let it dry. Add cheap 5w30 or 10w30 oil(Walmart with the dye. Let it run for 10-20 minutes and use the blacklight. That should show the leak. Quote Link to comment Share on other sites More sharing options...
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