Oxygen sensor socket - Kia Forum
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#1 (permalink) Old 10-15-2007, 12:19 PM
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Default Oxygen sensor socket

I need to replace the oxygen sensor and I have a 7/8 socket. The socket does not bite on the thread. Is this the right size socket. What am I doing wrong?
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#2 (permalink) Old 10-16-2007, 07:23 AM
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Is it stripped?

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#3 (permalink) Old 10-16-2007, 08:00 PM
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Is it metric?
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#4 (permalink) Old 10-16-2007, 08:02 PM
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Try a 5 sided socket instead of 12 point.
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#5 (permalink) Old 10-16-2007, 08:56 PM
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the socket does not touch the thread !!!! It goes on the hex head of the sensor....clearly you do not have the right size
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#6 (permalink) Old 06-14-2008, 01:24 PM
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Default Oxy Sensor Socket

Quote:
Originally Posted by billyboblyons View Post
I need to replace the oxygen sensor and I have a 7/8 socket. The socket does not bite on the thread. Is this the right size socket. What am I doing wrong?
Go to your local auto parts supply house and ask for an Oxygen Sensor Socket. This is a special socket with several different sizes inside and a slot cut in the side to allow the wires to hang out. This should be all you need to remove the sensor providing it is in a location that permits use of a socket. If you cannot use the socket, use a metric six point box wrench. Unplug the wire connector, slide the wrench on and take it out just like a bolt. It should not be extremely tight. Make sure when you install the new one, it has some anti-sieze on the threads so it will not get heat and corrosion welded to the bung in the pipe.

Good luck!

Last edited by Spockva; 06-14-2008 at 01:26 PM. Reason: better information
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#7 (permalink) Old 06-14-2008, 09:09 PM
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A 7/8" end wrench will work, that is what I used on mine. For the stubborn ones spray a little PB Blaster around the threads. Use some hi temp anti sieze compound on the threads when reinstalling. Be careful not to get any on the tip of the sensor below the threads.
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#8 (permalink) Old 06-22-2008, 10:26 AM
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As much as anti-seize is a good thing, you have to check with the manufacturer of the product if putting anything on the threads will mess up the electrical circuit. Some probes and sensors use the threads as a ground. If you coat the threads they may not make a good ground and hence a poor reading. Just some food for thought not trying to start a debate or argument.
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#9 (permalink) Old 06-22-2008, 01:38 PM
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There is also an anti-seize that is electrically conductive and is specifically designed for use with O2 sensors and other sensors that use the threads as a ground leg.
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