1999 GMC Yukon 1999 GMC Yukon O2 Sensor Locations

1999 GMC YUKON
165,000 MILES • V8 • 4WD • AUTOMATIC
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JPADILLA179
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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?
Aug 16, 2010 at 10:32 PM
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RASMATAZ
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Heated Oxygen Sensor (HO2S) Heavy Duty


https://images.2carpros.com/forum/automotive_pictures/12900_o_7.jpg

Heated Oxygen Sensor (HO2S) Light Duty


https://images.2carpros.com/forum/automotive_pictures/12900_o1_6.jpg

In the right exhaust pipe, after the catalytic converter https://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm
Aug 16, 2010 at 11:38 PM
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