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There are 4 O2 Sensors on the 1997 GMC Jimmy V6 4.3L. All sensors are accessed from bottom. All sensors are mounted on the exhaust. Three of the sensors are on the Bank 1 side of the engine (Passenger side). Sensor 1 Bank 1 is upstream of Y joint on Passenger Side, Sensor 1 Bank 2 is upstream of Y joint on drivers side. Sensor 2 Bank 1 is mounted down stream of Y before Cat Converter on Passenger side. Sensor 3 Bank 1 is downstream of Cat Converter on passenger side.

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2006-07-07 19:42:23
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Q: Where is the oxygen sensor on a 1997 GMC Jimmy?
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