How do I get the spark plugs out of my 1998 ford escort to replace with new ones? Also where does the pcp Valve go?

With you hood open and you are standing in front of the car sparkplug wires need to be removed,i suggest you remove them one at a time, under each wire the sparkplug is threaded into the cylinder head,using a 5/8 sparkplug socket remove the sparkplug and replace it with new properly gapped sparkplug.Note:if you remove all sparkplug wires at once the factory wires are generally numbered 1 2 3 4 the sparkplug closesed to the passenger fender is #1 and the one clossesed to the driver's fender is #4.Standing in front of vehicle the PCV Valve is located between #3 and #4 on the backside(intake side) of the engine fitted down into a rubber hose