EGR Valve: Testing and Inspection

EGR VALVE

1. Remove the EGR 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 EGR valve.







3. Apply a vacuum of 67 kPa (9.7 psi) and check air tightness of diaphragm.
4. Blow in air from one passage of the EGR to check condition as follows.

NOTE: When installing the EGR valve, use a new gasket and tighten to the specified torque.

Tightening torque :
18.6 - 27.5 (1.9 - 2.8 kgf.m, 13.7 - 20.3 lbf.ft)