i just changed my cpi spider and nut kit on my 95 blazer with 75,000 miles on it. it was leaking. see
http://www.automotiveforums.com/vbul...d.php?t=512877 for more info on my situation. i was wondering if i should also change my egr valve because i think my cpi was leaking for at least a month before i stopped driving it. i still dont think im getting the mileage i am supposed to, so i suspect the egr valve.