Q: How to replace the EGR valve, EGR tube, EGR Vacuum Regulator Solenoid, and Differential Pressure Feedback Sensor?
A: The EGR system reduces NOx emissions by recirculating exhaust gases. To remove the EGR Valve disconnect the battery cable, remove the air cleaner outlet tube, and disconnect the EGR valve vacuum hose and exhaust manifold tube. Remove the valve, clean the gasket surfaces, and install the new valve. To replace the Differential Pressure Feedback Sensor, disconnect the battery cable, the electrical connector, and vacuum hoses, and remove the securing bolts and the sensor.