LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2001 >> Safari Van 2WD V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> Emission Control Systems >> Exhaust Gas Recirculation (EGR) System >> Purpose

Purpose

The Exhaust Gas Recirculation (EGR) system lowers the oxides of Nitrogen (NOx) emission levels created by the high combustion temperatures.