Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
CAR REPAIR CONTRIBUTOR
110,190 POSTS
Yes, they can be cleaned. Use carb and choke cleaner to soften carbon and remove as much as you can. Once it is clean, confirm that the valve is seating properly. NOTE: If the egr is that dirty, check the intake where it bolts on and clean it as well.