2006 Kia Spectra Q&A

2006 Kia Spectra Question: replacing oxygen sensor

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. -
Answer 1
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 2
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! -
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Car has less than 37,000 miles. Maintained great. Only problem I have ever had. Changed sensor 2 times. Replaces with Bosh. any help. Bill