I have a 2003 SC. Today it has died 85 times when coming to stops. It wont accelerate fast, and creeps through the intersections before the power kick ups. The RPM's are going to 4.5 before it feels like it shifts (automatic) and while I was going 60mph it felt jolty. I need help. This all started today when it was warm and cold.Also, When going up a hill (on my dirt road) it felt like it was going to die and hardly had any power. As a side note, I have only used Premium gas.Fuel filter was replaced less than a year ago and it DOES have gasoline. Any ideas? It started this morning and I thought I was going to get killed all day! And when it dies, it sounds like a garbage disposal under the hood? Also, the check engine light is not on, unless it dies-then it is on.....