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2001 chev, when I put it in 4wd get a loud grinding noise and vibration only when put under stress
Problem for Chevrolet 2003 Suburban 1500
Need to replace the oxygen sensor in my 2003 suburban
Best Solution
posted on Mar 28, 2009
Ther are at leat 3 and maybe 4 o-2 sensors in that particular truck...one on each exaust pipe coming down from manifold...and one after convertor on each bank....Pass.side before convertor is bank one,sensor one ..behind convertor is bank one sensor two..drivers side before convertor is bank two,sensor one...behind convertor is bank two sensor two(If equipped with four....scan will tell you which one is bad....good luck..lee
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Solution #2
posted on Oct 20, 2009
The previous solutions have explaine where they are located but you may also consider borrowing an oxygen sensor rachet from your local auto parts store. They should loan it to you and makes it nice and easy to put it and take out.
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