I have a 99 SVT and have had the same problem as described above. They replaced the IAC twice with the problem coming back within a month. I dont remember the name of the part but I think they replaced the Throttle position sensor and that fixed it and it has stayed working properly since then. Email me if that part is incorect and I will call my Ford dealership and make sure thats what it was. EMail : kawray@lrbcg.com
