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Please check fitment notes & description for accurate information. 1996-2001 Chevrolet Blazer 4.3L 1996-2001 Chevrolet S10 4.3L 1996-2001 GMC Jimmy 4.3L 1996-2001 GMC Sonoma 4.3L 1996-2001 Oldsmobile Bravada 4.3L Oxygen Sensor's Location: How do I know the O2 sensor is good or not? Check engine light on A reduction in fuel economy. Your catalytic converter fails unexpectedly Exhaust emissions reach undesirable levels. How to install the oxygen sensor? .
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