Mechanics

O2 SENSOR LOCATIONS

1999 GMC Yukon

Electrical problem
1999 GMC Yukon V8 Four Wheel Drive Automatic 165000 miles

I had a fault code for a faulty O2 sensor, Bank 2 but didn't verify loc. Where are the two sensors in bank 2? I found one behind the catalytic converter an changed it out, then the fault code came up again. Where are the other bank 2 locations?
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Jpadilla179
August 16, 2010.




Heated Oxygen Sensor (HO2S) Heavy Duty


http://www.2carpros.com/forum/automotive_pictures/12900_o_7.jpg



Heated Oxygen Sensor (HO2S) Light Duty


http://www.2carpros.com/forum/automotive_pictures/12900_o1_6.jpg



In the right exhaust pipe, after the catalytic converter

http://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm

Tiny
Rasmataz
Aug 16, 2010.


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