| E,GR, QUSTION 1994 S420 I CALLED MY SELF TRYING TO CHECK MY EGR VALE I DISCONNECTED THE VAC HOE FROM THE EGR, SWICTH OVER TO SEE IF ANY AIR WAS COMEING THUR THE HOSE AND NOTHING ,,,SEEM,S TO BE BLOWING OUT THE THIS MEAN THAT THE EGR VALE IS NOT WORKING ANY REPLY WOULD BE HEPFUL THANK,S MEL DWYER 1994 S420 P.S MY CAR HAS 200,000 MILE,S ON IT AND THE EGR VALE HAS NEVER BEEN CHANGE AND SOME TIME,S I GET THAT FOUL ODLER,,,EVERY NOW AND THEN,,, ANY INPUT ,,WILL BEUSEFUL |