Steve, Thanks for the link and to all that has responded on this issue. I did pull the vacum line off the EGR valvle and blew and sucked through the hose to see if it was clogged. It wasn't. The engine didn't do anything different when I removed the vacum line from the EGR valve. I also didn't detect any vacum pressure at all no hissing nothing to the touch nada. Is this normal? Thanks Rick