EGR Valve: Service and Repair

Vacuum Schematic:

REMOVAL
1. Turn ignition Off.
2. Remove the air intake tube.
3. Disconnect the linear EGR valve wiring harness terminal.
4. Remove the linear EGR valve attachment bolts and valve assembly.

NOTE: The linear EGR valve should not be soaked in any solvent; otherwise damage to the electrical solenoid can result.

NOTE: Remove all loose deposits from the EGR inlet passage, otherwise they could clog the EGR valve.

5. Inspect the cylinder head, linear EGR valve and adapter passages for excessive carbon deposits. Deposits can be removed using a screwdriver or 305-330 mm (12-13 in.) length of odometer cable.
6. Clean the EGR valve mounting surfaces and inspect for scoring and cracks.

INSTALLATION
1. Install new EGR valve gasket.

NOTE: Make sure gasket is installed correctly or a vacuum leak will occur.

2. Install EGR valve.
3. Install EGR valve attachment bolts.

Linear EGR valve to cylinder head Torque to 25 NM (19 ft. lbs)

4. Connect linear EGR valve wiring harness connector.
5. Inspect air inlet tube. Attach air inlet and tighten clamp.
6. Install fresh air hose.
7. Start engine and inspect for exhaust gas leaks and diagnostic codes.