Where is it located and what does it take to replace it??
Right Rear o2 sensor on 2003 GMC Yukon Denali
1 answer 1 comment
ANSWER by user69083,
February 12, 2011
It's in the exhaust pipe behind the right catalytic converter. They come out with the proper socket wrench or a box end wrench.
1 answerJanuary 31, 2010
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