EGR Valve: Testing and Inspection

EGR VALVE INSPECTION

1. REMOVE EGR PIPE





(a) Loosen the union nut of the EGR pipe.
(b) Remove the 2 bolts, EGR pipe and gasket.
2. REMOVE EGR GAS TEMPERATURE SENSOR
3. REMOVE EGR VALVE





(a) Disconnect these hoses from the EGR valve:
(1) Vacuum hose
(2) Pressure hose
(b) Remove the 2 nuts, EGR valve and gasket.





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

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

(c) Connect these hoses to the EGR valve:
- Vacuum hose
- Pressure hose
6. REINSTALL EGR GAS TEMPERATURE SENSOR

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

7. REINSTALL EGR PIPE
(a) Temporarily install the union nut of the EGR pipe.
(b) Install a new gasket and the EGR pipe with the 2 bolts.

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

(c) Tighten the union nut of the EGR pipe.

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