ok heres the deal.. i bought a 99 f250 LD and its all been problems since...... ok heres my problem... truck will not shift past 3rd gear.. its an automatic 4 wheel drive. ... the fluid is clean and new with a filter.. it will shift 1 2 3 fine then when it hits 3rd it will just rev and rev just wont shift.. this has happend before but the higher you reved it would eventually shift into 4 th or overdrive... the cause last time was the tps.. the truck has no codes... and when it revs up all the way in 3rd i let off the gas and the trucks rpms go back to idle then slip the hell out of it until it matches speed... any ideas what is going on fellas??


5.4 triton engine ext cab 6 foot bed automatic