Question bank 2 sensor 2

Discussion in 'Maintenance' started by JB, Jan 28, 2010.

  1. JB

    JB 2008 RCSB

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    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
     
  2. 05ccsilverado

    05ccsilverado GMFS Member

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    Should be the one after the cat on the passenger side.
     
  3. JB

    JB 2008 RCSB

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    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
     
  4. 05ccsilverado

    05ccsilverado GMFS Member

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    Should be about a 6'' wire that comes connected to the sensor that has the harness on the end of that.
     
  5. spanky

    spanky GMFS Senior Member

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

    ^^ beat me to it
     
  6. xlcooplx

    xlcooplx resident pyromaniac

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    Yup the plug is up by the cab mount iirc.
     
  7. dwalton31

    dwalton31 GMFS Member

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    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
     
  8. 5spd Z71

    5spd Z71 GMFS Member

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    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.
     
  9. JB

    JB 2008 RCSB

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    thanks guys
     

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