When car is acting up does easing off the throttle make things better? When you romp on the throttle does it just like bog down or does it start a series of little near stalls and recoveries (kind of like someone learning to drive a stick shift that cant get the clutch figured out).
Have you checked your transmission fluid lately (level, color/appearance, and smell)?
P.S. I'm not kidding about the smell thing .. if it smells burned that's significant.
