EGR Valve: Testing and Inspection

1. DISCONNECT ENGINE WIRE AND HEATER WATER VALVE FROM COWL PANEL
- Remove the 2 nuts, and disconnect the engine wire protector and ground strap.
- Remove the 2 bolts, and disconnect the heater water valve.





- Pull out the engine wire protector and heater water hose from the cowl panel.
2. REMOVE EGR PIPE
- Loosen the union nut of the EGR pipe.
- Remove the 2 bolts, EGR pipe and gasket.
3. REMOVE EGR GAS TEMPERATURE SENSOR





4. REMOVE EGR VALVE
- Disconnect these hoses:
(1) Vacuum hose from EGR valve
(2) Pressure hose from EGR valve
- Remove the 2 nuts, EGR valve and gasket.





5. INSPECT EGR VALVE
- Check for sticking and heavy carbon deposits.
- If a problem is found, replace the EGR valve.
6. REINSTALL EGR VALVE
- Place a new gasket on the intake air connector.
- Install the EGR valve with the 2 nuts.

Torque: 21 N.m (210 kgf.cm, 15 ft.lb.)

- Connect these hoses:
- Vacuum hose to EGR valve
- Pressure hose to EGR valve
7. REINSTALL EGR GAS TEMPERATURE SENSOR

Torque: 20 N.m (200 kgf.cm, 14 ft.lb.)

8. REINSTALL EGR PIPE
- Temporarily install the union nut of the EGR pipe.
- Install a new gasket and the EGR pipe with the 2 bolts.

Torque: 27 N.m (280 kgf.cm, 20 ft.lb.)

- Tighten the union nut of the EGR pipe.

Torque: 64 N.m (650 kgf.cm, 47 ft.lb.)

9. REINSTALL ENGINE WIRE AND HEATER WATER VALVE TO COWL PANEL
- Install the heater water valve with the 2 bolts.
- Install the engine wire protector and ground strap with the 2 nuts.