We have been chasing this problem for years and are starting to think that the passage in the cylinder head is probably severly restricted. we changed the egr valve 2 years ago also. any help on how to get the nox numbers down would be greatly appreciated. It ...

FIX posted 10/14/2006

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle