I have a 94 Eddie Bauer with a 5.0L, E4OD transmission. When starting in the morning, it stumbles badly. If I turn the key off and restart it, it goes right into high idle with no problem. The truck runs fine otherwise. The problem seems directly related to outside temperature, the colder it is, the worse it is. I recently added a K&N air kit but that made no improvement. I also have a 93 F150 with the identical drive train and that has always been fine. I,m not sure of where to look. Any ideas would be greatly appreciated. Thanks.