EGR Valve: Testing and Inspection

1. Remove the exhaust gas recirculation valve and check for sticking, carbon deposits, etc. If such conditions exist, clean with solvent to ensure tight valve seat contact.
2. Connect a manual vacuum pump to the exhaust gas recirculation valve.





3. Apply a vacuum of 67 kPa (9.7 psi) and check air tightness.





4. Blow in air from one passage of the exhaust gas recirculation valve to check condition as shown.

CAUTION: When installing the exhaust gas recirculation valve, use a new gasket and tighten to the specified torque.

Tightening torque: 15 - 22 Nm (11 - 16 ft lb)