Shop 1999 Buick Century Exhaust Gas Recirculation (EGR) Valve. 3.1 & 3.4 LITER, 1995-99, 3.1 liter. 3.1 Combustion, VAPOR - OEM Buick Part # 12578041 (17113285)

Exhaust Gas Recirculation (EGR) Valve.
A Valve used to recirculate small amounts of Exhaust back into the combustion chambers of the engine in order to decrease the combustion temperature, thereby reducing the formation of smog-producing nitrogen oxides.

EGR Valve

3.1 & 3.4 LITER, 1995-99, 3.1 liter. 3.1 liter. 3.1L. 3.1M. 3.4 liter. 6 cylinder. 6 cylinder, gas. 6 cylinder, w/o 3.4 liter. All Models; 3.1L. All Models; 3.1L, 3.4L. All Models; 3.4L. EGR VALVE & SENSORS, 3.1 liter. EGR VALVE, VAPOR CANISTER AND SENSORS. Electric control, 3.1 liter. Silhouette, Trans Sport; 3.4L.
EGR Valve - Repair or Replace
A failed EGR valve will often have no noticeable symptoms beyond a check engine light, but it does cause your to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and genuine parts.