Caution: Avoid breathing fumes and swallowing EGR exhaust deposits when removing components for cleaning as bodily injury may result.

1. Remove the EGR valve.
2. Depress the pintle several times using a pencil eraser or other suitable soft instrument. The pintle should move in and out smoothly. Replace the valve if it exhibits tendencies to stick. Refer to Exhaust Gas Recirculation Valve Replacement .
3. Try to rotate the EGR valve connector housing. Repeat for the coil housing. Replace the valve if it exhibits any looseness. Refer to Exhaust Gas Recirculation Valve Replacement .
4. Inspect the EGR valve pintle and seat for deposits. Use a cloth or other suitable soft device to remove the deposits. Remove all loose particles. Replace the valve if the deposits are such that the pintle/base interface can not be cleaned adequately to allow the pintle to seal against the seat. Damage to the powdered metal EGR valve base occurs if cleaned with solvents, sharp tools, wire brush/wheel or sand blasting. Cleaning by these methods is not recommended.



5. Remove the EGR pipe.
6. Clean the passages with a wire brush. Remove all loose particles.
7. Install the EGR pipe.