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Old 01-28-2010, 02:18 PM   #1
JB
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Default bank 2 sensor 2

My buddy at works truck had a check engine light so we scanned it and it said heater in oxygen sensor bad BANK 2 SENSOR 2.

He wants to change the sensor himself but which one is it?

He has a 2001 Chevy Silverado RCSB 5.3L 4L60E


















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Old 01-28-2010, 02:31 PM   #2
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Default Re: bank 2 sensor 2

Should be the one after the cat on the passenger side.
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Old 01-28-2010, 02:42 PM   #3
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Default Re: bank 2 sensor 2

okay, thanks, I was wondering if it was the pass side downstream of the cat.

Does it plug into a junction area or right there at the sensor
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Old 01-28-2010, 02:44 PM   #4
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Default Re: bank 2 sensor 2

Should be about a 6'' wire that comes connected to the sensor that has the harness on the end of that.
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Old 01-28-2010, 02:45 PM   #5
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Default Re: bank 2 sensor 2

Theres a few inches of wire after the sensor but its easy to get to the plug.

^^ beat me to it
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Old 01-28-2010, 02:55 PM   #6
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Default Re: bank 2 sensor 2

Yup the plug is up by the cab mount iirc.
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Old 01-28-2010, 04:17 PM   #7
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Default Re: bank 2 sensor 2

I agree with everything said above. Should be passenger side past the cats. And 6"-10" of wire. The connector will be slid on to a clip that pushes into the body or frame, can't remember which. You can pull the whole clip out, or just slip the o2 sensor off the clip. Be sure to coat the threads with a penetrating lubricant to help the removal. I've seen some screw up threads or even break off when coming out. Worst case if it won't come out with a little help and effort, put some fire to the "bung" it's screwed into, but try not to heat up the sensor itself.

Oh, and it's easier if you disconnect it before trying to unscrew it...... ask me how I know..... hahaha
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Old 01-28-2010, 04:33 PM   #8
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Default Re: bank 2 sensor 2

before you put the new one in, put a little anti-sieze on the threads. That will help if you ever need to take that one out later on down the road.
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Old 01-28-2010, 04:56 PM   #9
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Default Re: bank 2 sensor 2

thanks guys
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