Should the engine be hot or cold ? I have heard mixed reviews.... The sensor is located in an easy place to get at and I am considering doing this myself. Any tips appreciated. Thank you.
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2006 Kia Spectra
Question: replacing oxygen sensor
Answer #1Jim Taddei February 22, 2011, 16:39Master
I always thought warm was better than cold, not hot, but warm. A little heat seams to allow the threads to break loose easier.
Answer #2patrick mannion from Greg Solow's Engine Room, February 22, 2011, 21:46Master
I like to remove them hot, I try to get paraffin wax to wick down the threads of the sensor as I try to take out the sensor, works great. Make sure you don't strip the threads and are patient taking out the sensor!