Your EGR valve and vacuum solenoid grind well-adjusted to ameliorate your vehicle's emissions.
When the modulator determines it is appropriate to reintroduce exhaust gas into your intake manifold, it signals your vacuum solenoid to open. This allows engine vacuum to flow through the modulator and to your EGR valve, where it causes the diaphragm to rise and exhaust gas to be directed into your intake manifold.
When this unit receives ported vacuum, the diaphragm rises and allows exhaust gas to pass through a port and into your intake manifold.
EGR Vacuum Solenoid
Vacuum solenoids (EGR SV) are used with all EGR valves. The unit opens and closes to allow or prevent the engine vacuum from reaching your EGR valve. It is regulated by your vehicle's EGR modulator. Depending on the year of your vehicle, it is located between the engine block and the firewall or mounted on the passenger-side wheel well.
How the Components Work Together
Your Geo Tracker is equipped with an exhaust Gauze recirculation (EGR) course that works to ameliorate emissions by reducing the formation of nitrous oxides. Your EGR valve and vacuum solenoid are both articulation of this operation; nevertheless, they are seperate parts with diverse functions.
