How is it that my engine cranks but will not turn over on my 1997 Lincoln Mark VIII?

If it turns over but just doesn't start, it may be the CRANK POSITION SENSOR located next to the air conditioning compressor. Sometimes you just have to disconnect the electrical connection and re-connect and it may just work then you know that was your problem. It could be the FUEL PUMP also but sometimes they act up some before going out so there is some warning.