Throwing codes, but I don't know the numbers. Engine light coming on and keps going dead at very low speeds etc. From what I have read so far I meet all the requirements for a EGR valve replacement. Hoping this is something I can do myself....FYI, I was quoted $600.00 to $650.00 to do this 3 hour repair. I don't think so. I thought I would give this a try. However, I don't know where to look for it. Is there a service manual for the 2005 / 3.5 engine that I can download??? I do have a fair shop at my farm where I live, but my knowledge of car repair is about 20 years behind the curve. Let me at an original 300 and I'm good to go. But things seem to have changed. Wonder what I was doing during this change (lost in the past I think). Thanks for any ideas.