ford engine problems don't konw what to do

i have a 2000 ford focus sport (i guess thats the one with the zts engine) the engine keeps stalling out then i have to pull over and let it sit for about 20 mins before i can start it again i some times get a check engine light but not always. im always geting a misfire in Cylinder #4 and one i got a misfire in Cylinder #3 (haven't gotten that in a while)i've already changed the spark plugs,the wires,the Ignition Coil,the Fuel Injectors,the pvc and egr valve and the car heats up but i dont get a reading on my Temperature gauge and the fan doesn't cut on. i don't really what else i can do the mechanics keep telling me they don't know whats wrong with it

I had a similar problem with a different car. It was a crank shaft sensor.

Get the codes read at Autozone and post them here.

Get the codes read at Autozone and post them here.

Or don't. We can't help if you don't keep coming back.