Just today i pick up out fj80 which has been the shop for 6 wks. getting the head gasket done. cost a boat load and on my way home the 80 did something its never done. under moderate acceleration it revs super high and but doesn move, a few seconds later it will finally "catch" and actually move. is this related to them messing w/ the engine or a tranny going bad. remember it just started and has never done this. thanks