Please check fitment notes & description for accurate information.Chevrolet Colorado LT 5.3L 2009GMC Canyon SLT 5.3L 2009Hummer H3 Alpha 5.3L 2008-2010Hummer H3 Championship 5.3L 2009Hummer H3T Alpha 5.3L 2009 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. .
