stalling at hiway speeds

my 99 odyssey accusingly stales out at hi way speeds between 55-65 mph. Ive taken it to several garages and no one can find anything wrong and no parts have Ben replaced any suggestions thanks:banghead: ps its an auto trans

Fuel blockage maybe? No airflow, old plugs, coil going bad. Have you ever had fuel injection service. What it sounds like to me the reason it's stalling is because of lack of air or fuel. My friends car stalled at high speed because someone had put rice cake in his fuel tank. Car ran fine on surface streets but once he got on the freeway his car stalled out. Check fuel filter make sure you have no blockage, see if you fuel pump is still working.