Sounds and feels like a plug wire is pulled. Seems to idle ok, but during acceleration it has a "chug" "chug" feel. Used AC today and it had no real effect on performance. Seems to run better during cooler weather. Plugs and wires may be original. #2 coil and boots for 2,4,6 replaced 3 years ago. Ordered a new wire set and plugs today. Hope it solves the problem as I'm not to thrilled at paying $500 again for something simple. I pulled #2 plug last night and it was a light tan color and looked ok. Wiring harness replaced 5 years ago.

Comments appreciated.