Shop 2002 Buick Century Exhaust Gas Recirculation (EGR) Valve. 4.3. 4.3 LITER, EFI. S-Series; 4.3L, No EMISSION, Combustion - OEM Buick Part # 19210639 (17112041, 214-5394, 2145394)

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

4.3. 4.3 LITER, EFI. S-Series; 4.3L, No. 17088109. S-Series; 4.3L; TBI. S-Series; 4.3L; TBI; Manual Trans.
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.