I bought a 2002 taurus and it made a horrible sucking sound and got worse gas milage than my suburban. I noticed the dpem was melted i looked behind it and the hoses were plastic welded on and had tons of holes in them. so I removed and plugged them. my EGR is the the round flat top type with a boot plug on top I am now ready to replace the dpem and run the egr to the ref side of the dpem, however is it the boot line I put in the ref side? and do I plug the top of the EGR or leave it open? what about the stuf on the bottom of the EGR just leave it alone??