I just bought another 2001 f150 and the oil pressure switch was broken at the switch therefore it's not working on the cluster is it possible that the engine could loose power like a misfire and not run the way it should if the switch is broken with connector just hanging

 

Doubtful. Odds are you just bought a basket case to some extent.

The oil pressure sender can tie into the ignition on some makes, but not this gen F150.

 

does anyone know if a 2010 4.6 lt engine will fit in a 2001 f150 truck without any major problems would i need computer to go with it or would it be interchangeable

 

no, the 2010 would be a 3V motor, they will not interchange.

You need to stick to the same model year if possible

 

ok thanks for the info