97 f150 overheat
 

Ran for 7 miles no problemslowed down to let some one turn .when i accellerated in about 30 sec.it overheated quickly .took about ten minutes to cool down enough to drive . It has new water pump,fan clutch,radiator flush ,done at shop.no sign of exhust gas in cooling system or oil pan issues. Helllp. Thanks

If you did replace the thermostat , it may be sticking and probably should look for binding marks on it.