EGR Valve: Service and Repair

Exhaust Gas Recirculation Valve

Removing


The normal operating temperature of the exhaust gas recirculate valve and pipe is very high. Therefore, never work around or attempt to service any engine component until it is completely cooled.

• It is very important to disconnect the battery due to the addresses (cells) within the engine controller that store learned values related to powertrain operation. A malfunctioning EGR system can cause bad values to be stored in these cells that can cause an erroneous fault to occur after the system is repaired. Disconnecting the battery for at least two minutes will remove all the power from the controller and reset these cells to normal default values.

- Disconnect the negative battery cable.






- Disconnect the wiring harness electrical connector (1) from EGR valve (5).

- Remove the EGR pipe bolts (3) from the EGR valve (5).

- Remove and discard the EGR pipe gasket.

- Remove the EGR valve bolts (4).

- Remove the EGR valve (5) and gasket from the cylinder head.

Installing






- Install a new gasket to the EGR valve.






- Position the EGR valve (5) with gasket to the cylinder head.

- Install the EGR valve bolts (4) to cylinder head. Tighten the bolts to 30 Nm (22 ft lbs).

- Install a new gasket between the EGR pipe (2) and valve (5).

- Install the EGR pipe bolts (3). Tighten the bolts to 15 Nm (11 ft lbs).

- Connect the wiring harness electrical connector (1) to the EGR valve (5).

- Connect the negative battery cable.