I also have any early 99 and I have never had or heard of an early 99 surging. I think that your problem is also ebpv related like joe said. I usually never drive mine when its cold I usually let it run but this is the first winter Ive had the truck. When mine high idles and I touch the brake it quits high idling. Not sure about that opening the ebpv back up though cause mine is on a switch anyway. I didnt think it closed the ebpv while driving cause I though I read something about it hurting the lifters not exactly sure.
Last edited by Kyle_KleinSS; 11-10-2009 at 03:18 AM.