most likely it's a bad thermostat, or your vents not working properly.
Injectors could be bad
I know that the 2003 ford f250 diesel was what they call the lemon year. They swiched from a 7.3 to 6.0
your clutch may be going bad
7.3L does not have EGR Valve.
is this a gasoline or diesel engine if it is diesel you have a bad injector, or the fuel pump is bad if it is a gasoline engine, you could have a bad injector, a bad spark plug,bad plug leads, timing is wrong,bad ignition points or bad distributor cap those are a few to start with
Many things. No fuel, dead batteries, or the most possible a bad starter. There may be one bad spot on the starter.
i need to know how all the wires go to the silenoid and the glow plug controler for a 6.9 diesel in a 1986 ford f250. need help bad!!!
Low coolant, bad thermostat, bad fan or fan clutch, damaged radiator, debris filled radiator. Check your lines. Worst case scenario, blown head gasket.
bad
NO that's bad
to tell what injector is bad when engine is running slowly open the injector line to each injector if the engine stutters then the injector is good if it has no difference then it most likely is bad i had a injector that stayed open completely and you could hear a popping noise because it was pushing air back into the system!! good luck!