Changed solenoid block, filled trans til fluid streaming out while idling after running thru gears. Now no lights or warnings. Under normal acceleration all is good. When accelerating hard, it takes awhile to shift from 2nd to 3rd. When on the highway around 65 I noticed if I start coasting my rpms will drop to about 1200 then kick up to 2000-2300, then if i hit the gas they will shoot up to around 3k. I'm guessing that the trans is not downshifting therefore causing the rpms to drop? Any ideas, is this something a pcm flash might fix. Because other than those 2 things everything else is fine, no jerking, thumping or harsh shifts. 02 V8.