hey guys, my friends 93 f150 2wd 5.0 is acting funny. he was just performing matenience and had the tranny filter and fluid changed. and when he got it back, it wont shift into od untill around 65-70 mph. before it shifted around 50. everything else seems to work ok. also under half acceleration or more, then check engine light blinks on and when u let off the gas slightly it goes off. i told him the guys at fsb.com know their stuff and most likely know whats the deal.. the e40d tranny seems to always have quirks.. any suggestions?