To clean an EGR valve, remove the valve from the engine, spray the valve with carb cleaner and put the valve back into the engine. Clean the metering rod if needed.
- Uninstall the valve
Locate the valve, apply the rust penetrant to the valve retaining bolt, and allow the bolt to loosen for a few minutes before removing it with socket. Detach the vacuum lines and electrical harness from the valve, and pluck the valve from the engine.
- Apply cleaner
Place the valve on a rag, use carb cleaner to spray the valve, and wipe off the dirt remnants. Take caution to prevent the cleaner from entering the electrical components.
- Clean the metering rod if needed
If the rod does not slide smoothly, soak a cotton swab with the cleaner, and rub the port and rod to remove the dirt. Finally, reinstall the clean valve into the engine compartment.