EGR Valve Check

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.
4. Blow in air from one passage of the EGR to check condition as follows:
- Vacuum 7kPa or less - Air does not blow through.

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

Tightening torque
EGR valve: 15 - 22 Nm (150 - 220 kg.cm, 11 - 16 lb.ft)