Shop 1991 Buick Century Exhaust Gas Recirculation (EGR) Valve. 5.7 LITER, 1998-02. 5.7 liter, all. All LITER, EMISSION - OEM Buick Part # 17113589 (12578039, 17113527, 17113614)

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

Fits Camaro, Firebird

5.7 LITER, 1998-02. 5.7 liter, all. All Models; 5.7L; All.
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.