How to replace spark plugs on a 1999 mercury cougar.?

i would like to know if it is easy to replace the spark a plugs on a 1999 mercury cougar 2.5 v6, and where would they be located, also im getting a check engine light that says my crankshaft position sensor is bad and i get a p0430 , is any of these bad and do the need imidiate attention or can i wait a while untill i get some money.How to replace spark plugs on a 1999 mercury cougar.?the spark plugs are right on top of each head of the motor pull the long plug out you will need a spark plug socket and a rachet and a extension. make sure you have a rubber insulated socket or you wont be able to pull the plugs out. In the back of the motor there are slots for the three plugs easy job. Now on the crank sensor have that replaced it screws up the computer and drivabilty and could leave you stranded in the future good luck