Quote:
|
Originally Posted by kintaro867
I have a 2000 w/ a 4.7 and it does the same thing. Where can I get that valve at? Also, my engine has a very light knock and runs rough when I start it up. Does anyone know what that is? The engine runs rough sometimes but at other times feels fine. I need to know what to do so I can take it in before the warranty runs out.
|
I checked into the idle air control valve (IAC) and believe that this is not the problem. Several other automotive formums such as this one also list Durango&Dakota owners who have the same problem. Several have had the throttle bodies cleaned which includes the IAC. The IAC was replaced in some cases. However, in nearly all cases the rough idle problem at a cold start was not solved. This is something pervasive to the 4.7L magnum engine, none of the other engines have this problem. When my Durango was under warrenty I had it serviced several times for this issue and nothing abnormal was found. As an attempt to fix the problem, the dealer replaced my fuel sending unit with the thinking that it was a fuel pressure problem. It made absolutely not change. My thoughts are that the problem definitely has to do with the fuel/air mixture management. It could be the onboard computer is not programmed well. Several people in other forums had their computer software upgraded which resulted in no starting improvement. I do not know how to proceed to a solution. I've lived with the problem for nearly 4 years and it appears that I will have to continue living with for the remainder of my ownership of the vehicle.