I removed EGR valve and tube. The tube at the engine side was completely clogged.
I used small pry bar to remove the deposit. I let them soaked whole night in acetone, but the result was the same like 15-20 minutes. I used wire to clean the tube but maybe with a type of drain auger will be more effective. Finally I used some metal brushes for guns (Harbor Freight tools). The both openings in the engine were cleaned by the brushes too.
I made some pictures but I didn't get it how to upload them here.
Last edited by georgi; 04-14-2012 at 12:40 AM..