when it shifts from 2nd to third it revs real high before finally going into third. When i stop at a light, its fine for 15 seconds and then starts ginding and surging for a few seconds while my foot is on the brake. does this every 15 secons or so. when icome to a stop it doesnt go back into low gear unit i fully stop and then slams into low.Does not slip under a load and does great until warm. does vibrate hard also when put into drive. maybe shift sol.? or converter lock up? Please help this is my daily driver!!!