cleazy123
05-20-2010, 06:57 PM
egr code 0400, funny noise from intake manifold, occasional smoke from cat converter, rides fine, louder than normal exhaust noise. Please help dont know if I should change EGR valve,solenoid,or cat. All three are pricey rather not change all three. has anyone had this problem? took of IM , removed e/t from manifold, cleaned put back together. upon startup IM was a little whistley, a lot of smoke from cat......but when I disconnected coolant and petro lines from IM , I do recall a little bit of leakage on the under area. when 1st started could have been that burning off. any ideas please I dont know who else to turn too. If you guys dont have an answer I will have to replace it all. cat definately needs to be changed.