Engine will not start and run?

Vehicle running fine yesterday. Pouring rain all day and night. Will not start today. Fuel at fuel rail, battery voltage good. What can get wet or fail to cause no start?

Elec ignition joe no dist cap 6 coils one for each plug no spark. Answer doesnt help

Crankshaft position sensor apparently got wet. Removed c, cleaned, blew whole connection with hair dryer, reinstalled. Vehiicle started right up.

I just replace the engine in my 02 ford escape. The replacement engine came out of a mercury sable. The engine looked the same except for the front cover which I changed. I also used all of the sensors from the original engine.
My problem is that I cant get the engine to start. I seem to have fuel, fire and good compression but the motor will not start.

Ok. Well I both engines and they look identical except for the front cover/timing chain cover. I took the cover from the old escape engine and put on the other engine and used the original intake and sensors.
There is no noticeable difference in the engines and their setup. If you can please advise me of the difference I would really appreciate that.
Thanks

I am confused because one ford expert sais the engine will work and they look exactly alike. And you said they are different even though they look alike. Im confused

2002 Ford Escape had trouble past several months with engine not starting. Sometimes works no problem, sometimes takes a few minutes but would eventually start. Today was a different story. Have power to lights, radio and engine cranks but won't turn over. I had low oil level but added sufficient oil, still wouldn't start. Tried resetting pcm but still nothing. Any suggestions?

Don't have a gauge or ability to bleed off fuel pressure. Checked fuses, all are good. Last resort is towing car to mechanic to have him look at it. Pretty sure it's not getting fuel but short of towing, not sure what to do next.

Interestingly enough the Taurus and the sable engine is different. The Taurus engine has the plugs to the side of the head while the sable has the plugs in the top of the head between the cams just like the escape. The only obvious difference is that the sable has a coil pack and wires while the escape has individual coil packs that go on each plug. This has really got me turn upside down.
Thanks for your patience. If you find anything that will help me out let me know.
Big Macs

I pulled into a gas station put the vehicle into nuetral and set the e-brake. Before I got through the door. Then engine stalled. So I asked my girlfriend to turn the swicth off. Had it checked on an autozone computer no codes came up. Its making spark and can hear fuel pump spin up when turn the key. Understand bad idle air valve would make it stall. But what would keep from starting back up. Cam shaft sensor. Crankshaft sensor. And if so wouldn't that be strange both just happened to go out at once. Appreciate any suggestions you may have