Buick Encore Chevrolet Trax Oxygen Sensor 24104839 24104840 GM Genuine Quality

Buick Encore and Chevrolet Trax 1.4T models can directly replace oxygen sensor with OEM numbers 24104839 and 24104840. It monitors exhaust oxygen content and feeds ECU to adjust air-fuel ratio; resolves high fuel consumption, weak acceleration, or check engine light. Particularly improves idle instability and emission exceedance. If after starting the car there is aromatic fuel smell, fuel consumption rises suddenly, or power response is sluggish, the oxygen sensor is aging; replacement is recommended to avoid damaging the catalytic converter.